{"id":43588,"date":"2025-07-01T21:02:25","date_gmt":"2025-07-01T12:02:25","guid":{"rendered":"https:\/\/jouhou.main.jp\/?p=43588"},"modified":"2026-01-26T18:12:03","modified_gmt":"2026-01-26T09:12:03","slug":"ssd%e3%82%bb%e3%83%ab%e3%83%aa%e3%83%95%e3%83%ac%e3%83%83%e3%82%b7%e3%83%a5%e6%8a%80%e8%a1%93%e3%81%a8%e5%be%a9%e6%97%a7%e7%b7%a8","status":"publish","type":"post","link":"https:\/\/jouhou.main.jp\/?p=43588","title":{"rendered":"SSD\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u6280\u8853\u3068\u5fa9\u65e7\u7de8"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"43588\" class=\"elementor elementor-43588\" data-elementor-settings=\"[]\">\n\t\t\t\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-87e379e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"87e379e\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-59ae5af\" data-id=\"59ae5af\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-66e6917 elementor-widget elementor-widget-html\" data-id=\"66e6917\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<section style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:14px; background:#ffffff;\">\n  <div style=\"max-width:100%; box-sizing:border-box; overflow:visible;\">\n    <div style=\"display:flex; gap:10px; align-items:flex-start; max-width:100%; box-sizing:border-box; overflow:visible;\">\n      <div style=\"flex:0 0 auto; max-width:100%; box-sizing:border-box; overflow:visible;\">\n        <span style=\"display:inline-block; background:#111827; color:#ffffff; border-radius:3px; padding:6px 10px; font-size:12px; line-height:1; overflow-wrap:anywhere; max-width:100%;\">\u6700\u77ed\u30c1\u30a7\u30c3\u30af<\/span>\n      <\/div>\n      <div style=\"flex:1 1 auto; min-width:0; max-width:100%; box-sizing:border-box; overflow:visible;\">\n        <div style=\"font-size:18px; font-weight:700; line-height:1.35; margin:0 0 4px 0; overflow-wrap:anywhere; max-width:100%;\">SSD\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u6280\u8853\u3068\u5fa9\u65e7\uff1a\u8ff7\u3044\u3084\u3059\u3044\u5206\u5c90\u3092\u5148\u306b\u6574\u7406<\/div>\n        <div style=\"font-size:13px; line-height:1.6; color:#374151; margin:0; overflow-wrap:anywhere; max-width:100%;\">\u300c\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3067\u76f4\u308b\u306e\u304b\u300d\u300c\u5fa9\u65e7\u306e\u305f\u3081\u306b\u4f55\u3092\u6b62\u3081\u308b\u3079\u304d\u304b\u300d\u3092\u3001\u6700\u5c0f\u5909\u66f4\u3067\u5224\u65ad\u3067\u304d\u308b\u5f62\u306b\u307e\u3068\u3081\u307e\u3059\u3002<\/div>\n      <\/div>\n    <\/div>\n<div style=\"height:12px; max-width:100%; box-sizing:border-box; overflow:visible;\"><\/div>\n\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #fee2e2; border-radius:3px; padding:12px; background:#fff7f7;\">\n  <div style=\"display:flex; gap:10px; align-items:flex-start; max-width:100%; box-sizing:border-box; overflow:visible;\">\n    <div style=\"flex:0 0 auto; max-width:100%; box-sizing:border-box; overflow:visible;\">\n      <span style=\"display:inline-flex; align-items:center; justify-content:center; width:26px; height:26px; border-radius:3px; background:#ef4444; color:#ffffff; font-weight:700; font-size:14px; overflow-wrap:anywhere; max-width:100%;\">1<\/span>\n    <\/div>\n    <div style=\"flex:1 1 auto; min-width:0; max-width:100%; box-sizing:border-box; overflow:visible;\">\n      <div style=\"font-size:15px; font-weight:700; margin:0 0 6px 0; overflow-wrap:anywhere; max-width:100%;\">30\u79d2\u3067\u4e89\u70b9\u3092\u7d5e\u308b<\/div>\n      <div style=\"font-size:13px; line-height:1.6; color:#111827; margin:0; overflow-wrap:anywhere; max-width:100%;\">\u307e\u305a\u300c\u8a8d\u8b58\u3059\u308b\/\u3057\u306a\u3044\u300d\u300c\u8aad\u307f\u53d6\u308a\u3060\u3051\u9045\u3044\/\u30a8\u30e9\u30fc\u304c\u51fa\u308b\u300d\u300c\u5bb9\u91cf\u304c0\u306b\u898b\u3048\u308b\u300d\u306a\u3069\u3001\u3044\u307e\u5230\u9054\u3057\u3066\u3044\u308b\u72b6\u614b\u30921\u3064\u306b\u56fa\u5b9a\u3059\u308b\u3068\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3067\u89e6\u3063\u3066\u3088\u3044\u9818\u57df\u304b\u304c\u898b\u3048\u307e\u3059\u3002<\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n<div style=\"height:10px; max-width:100%; box-sizing:border-box; overflow:visible;\"><\/div>\n\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #dcfce7; border-radius:3px; padding:12px; background:#f6fffa;\">\n  <div style=\"display:flex; gap:10px; align-items:flex-start; max-width:100%; box-sizing:border-box; overflow:visible;\">\n    <div style=\"flex:0 0 auto; max-width:100%; box-sizing:border-box; overflow:visible;\">\n      <span style=\"display:inline-flex; align-items:center; justify-content:center; width:26px; height:26px; border-radius:3px; background:#22c55e; color:#ffffff; font-weight:700; font-size:14px; overflow-wrap:anywhere; max-width:100%;\">2<\/span>\n    <\/div>\n    <div style=\"flex:1 1 auto; min-width:0; max-width:100%; box-sizing:border-box; overflow:visible;\">\n      <div style=\"font-size:15px; font-weight:700; margin:0 0 6px 0; overflow-wrap:anywhere; max-width:100%;\">\u4e89\u70b9\u5225\uff1a\u4eca\u5f8c\u306e\u9078\u629e\u3084\u884c\u52d5<\/div>\n      <div style=\"font-size:13px; line-height:1.6; color:#374151; margin:0 0 10px 0; overflow-wrap:anywhere; max-width:100%;\">\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u306f\u300c\u30c9\u30e9\u30a4\u30d6\u5185\u90e8\u306e\u4fdd\u5b88\u52d5\u4f5c\u300d\u3068\u3057\u3066\u50cd\u304f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u5fa9\u65e7\u76ee\u7684\u3067\u306e\u4e0d\u7528\u610f\u306a\u66f8\u304d\u8fbc\u307f\u306f\u9006\u52b9\u679c\u306b\u306a\u308a\u5f97\u307e\u3059\u3002\u307e\u305a\u306f\u30ed\u30b0\u3067\u72b6\u6cc1\u3092\u78ba\u5b9a\u3057\u307e\u3059\u3002<\/div>\n\n      <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:10px; background:#ffffff; margin:0 0 10px 0;\">\n        <div style=\"font-size:13px; font-weight:700; margin:0 0 6px 0; overflow-wrap:anywhere; max-width:100%;\">\u30b1\u30fc\u30b9A\uff1aOS\u306f\u8a8d\u8b58\u3059\u308b\u304c\u3001\u9045\u3044\u30fb\u30a8\u30e9\u30fc\u304c\u5897\u3048\u305f<\/div>\n        <pre style=\"margin:0; padding:10px; border-radius:3px; background:#111827; color:#ffffff; white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box;\"># Linux\uff08SATA\/NVMe \u5171\u901a\u306e\u5165\u53e3\uff09\n\ndmesg -T | tail -n 120\nlsblk -o NAME,SIZE,ROTA,RO,MOUNTPOINT,MODEL,SERIAL\nsudo smartctl -a \/dev\/sdX\nNVMe \u306e\u5834\u5408\uff08\u8a73\u7d30\uff09\nsudo nvme list\nsudo nvme smart-log \/dev\/nvme0\nsudo nvme error-log \/dev\/nvme0\nWindows\uff08PowerShell\uff09\nGet-PhysicalDisk | Format-Table -AutoSize\nGet-Disk | Format-Table -AutoSize\nwevtutil qe System \/q:\"*[System[(EventID=7 or EventID=51 or EventID=153)]]\" \/c:15 \/f:text<\/pre>\n<\/div>\n      <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:10px; background:#ffffff; margin:0 0 10px 0;\">\n        <div style=\"font-size:13px; font-weight:700; margin:0 0 6px 0; overflow-wrap:anywhere; max-width:100%;\">\u30b1\u30fc\u30b9B\uff1a\u8a8d\u8b58\u3059\u308b\u304c\u3001\u30d5\u30a1\u30a4\u30eb\u304c\u8aad\u3081\u306a\u3044\u30fb\u4e00\u90e8\u304c\u5316\u3051\u308b<\/div>\n        <pre style=\"margin:0; padding:10px; border-radius:3px; background:#111827; color:#ffffff; white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box;\"># \u307e\u305a\u300c\u66f8\u304d\u8fbc\u307f\u304c\u767a\u751f\u3057\u306a\u3044\u72b6\u614b\u300d\u306b\u5bc4\u305b\u308b\uff08Linux\uff09\n\nmount | tail -n 20\nsudo mkdir -p \/mnt\/ro\nsudo mount -o ro,norecovery \/dev\/sdXN \/mnt\/ro 2>&1 | tail -n 5\n\u8aad\u3081\u308b\u7bc4\u56f2\u3092\u5148\u306b\u9000\u907f\uff08\u4f8b\uff1addrescue\uff09\nsudo ddrescue -f -n \/dev\/sdX \/path\/to\/image.img \/path\/to\/map.log\nsudo ddrescue -d -r3 \/dev\/sdX \/path\/to\/image.img \/path\/to\/map.log\nNVMe \u3067\u3082\u540c\u69d8\u306b\u300c\u30a4\u30e1\u30fc\u30b8\u5316\u512a\u5148\u300d\nsudo ddrescue -f -n \/dev\/nvme0n1 \/path\/to\/nvme.img \/path\/to\/nvme.map<\/pre>\n<\/div>\n      <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:10px; background:#ffffff; margin:0 0 10px 0;\">\n        <div style=\"font-size:13px; font-weight:700; margin:0 0 6px 0; overflow-wrap:anywhere; max-width:100%;\">\u30b1\u30fc\u30b9C\uff1a\u305f\u307e\u306b\u6d88\u3048\u308b\u30fb\u518d\u8d77\u52d5\u3067\u623b\u308b\u30fb\u63a5\u7d9a\u306e\u305f\u3073\u306b\u6319\u52d5\u304c\u5909\u308f\u308b<\/div>\n        <pre style=\"margin:0; padding:10px; border-radius:3px; background:#111827; color:#ffffff; white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box;\"># \u307e\u305a\u306f\u5468\u8fba\u8981\u56e0\u306e\u5207\u308a\u5206\u3051\uff08\u6700\u5c0f\u5909\u66f4\uff09\n\nSATA\uff1a\u30b1\u30fc\u30d6\u30eb\/\u30dd\u30fc\u30c8\u5909\u66f4\u3001\u5225PC\u3067\u78ba\u8a8d\uff08OS\u306f\u8d77\u52d5\u30c7\u30a3\u30b9\u30af\u306b\u3057\u306a\u3044\uff09\nNVMe\uff1a\u5225\u30b9\u30ed\u30c3\u30c8\u3084\u5225PC\u3001\u6e29\u5ea6\u3068\u96fb\u6e90\u306e\u5b89\u5b9a\u3092\u78ba\u8a8d\nLinux\uff1a\u63a5\u7d9a\u8a8d\u8b58\u3068\u30a8\u30e9\u30fc\u306e\u5c65\u6b74\ndmesg -T | grep -Ei \"nvme|ata|scsi|reset|timeout|I\/O error\" | tail -n 120\nsudo smartctl -a \/dev\/sdX | egrep -i \"realloc|pending|uncorrect|crc|power|temperature|error\"\n\u6e29\u5ea6\u304c\u9ad8\u3044\u306a\u3089\u30ed\u30b0\u4e0a\u3067\u78ba\u8a8d\uff08NVMe\uff09\nsudo nvme smart-log \/dev\/nvme0 | egrep -i \"temperature|warning|critical\"<\/pre>\n<\/div>\n      <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:10px; background:#ffffff; margin:0;\">\n        <div style=\"font-size:13px; font-weight:700; margin:0 0 6px 0; overflow-wrap:anywhere; max-width:100%;\">\u30b1\u30fc\u30b9D\uff1a\u5bb9\u91cf\u304c0\u306b\u898b\u3048\u308b\u30fb\u66f8\u304d\u8fbc\u307f\u4e0d\u53ef\u30fb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u4fc3\u3055\u308c\u308b<\/div>\n        <pre style=\"margin:0; padding:10px; border-radius:3px; background:#111827; color:#ffffff; white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box;\"># \u3053\u3053\u3067\u306e\u300c\u521d\u671f\u5316\u300d\u300c\u4fee\u5fa9\u5b9f\u884c\u300d\u306f\u5f8c\u56de\u3057\u306b\u3059\u308b\u3053\u3068\u304c\u591a\u3044\uff08\u66f8\u304d\u8fbc\u307f\u304c\u5897\u3048\u3084\u3059\u3044\uff09\n\n\u307e\u305a\u306f\u751f\u5b58\u78ba\u8a8d\u3068\u30ed\u30b0\u63a1\u53d6\u3092\u512a\u5148\nLinux\uff1a\u30c7\u30d0\u30a4\u30b9\u306e\u898b\u3048\u65b9\nlsblk -o NAME,SIZE,RO,TYPE,MOUNTPOINT,MODEL,SERIAL\nsudo fdisk -l 2>&1 | tail -n 80\nsudo smartctl -a \/dev\/sdX | tail -n 80\nNVMe\uff1a\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u5074\u306e\u72b6\u614b\nsudo nvme id-ctrl \/dev\/nvme0 | head -n 60\nsudo nvme smart-log \/dev\/nvme0\nsudo nvme error-log \/dev\/nvme0 | head -n 80<\/pre>\n<\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n<div style=\"height:10px; max-width:100%; box-sizing:border-box; overflow:visible;\"><\/div>\n\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #dbeafe; border-radius:3px; padding:12px; background:#f7fbff;\">\n  <div style=\"display:flex; gap:10px; align-items:flex-start; max-width:100%; box-sizing:border-box; overflow:visible;\">\n    <div style=\"flex:0 0 auto; max-width:100%; box-sizing:border-box; overflow:visible;\">\n      <span style=\"display:inline-flex; align-items:center; justify-content:center; width:26px; height:26px; border-radius:3px; background:#3b82f6; color:#ffffff; font-weight:700; font-size:14px; overflow-wrap:anywhere; max-width:100%;\">3<\/span>\n    <\/div>\n    <div style=\"flex:1 1 auto; min-width:0; max-width:100%; box-sizing:border-box; overflow:visible;\">\n      <div style=\"font-size:15px; font-weight:700; margin:0 0 6px 0; overflow-wrap:anywhere; max-width:100%;\">\u9078\u629e\u3084\u884c\u52d5\u3059\u308b\u524d\u306b\uff1a\u5f71\u97ff\u7bc4\u56f2\u30921\u5206\u3067\u78ba\u8a8d\uff08\u3084\u308a\u904e\u304e\u9632\u6b62\uff09<\/div>\n      <div style=\"font-size:13px; line-height:1.6; color:#111827; margin:0; overflow-wrap:anywhere; max-width:100%;\">\u3053\u306eSSD\u306b\u300c\u552f\u4e00\u306e\u30c7\u30fc\u30bf\u300d\u304c\u3042\u308b\u306a\u3089\u3001\u307e\u305a\u66f8\u304d\u8fbc\u307f\u3092\u6b62\u3081\u3066\u3001\u30ed\u30b0\u63a1\u53d6\u3068\u30a4\u30e1\u30fc\u30b8\u5316\u3092\u512a\u5148\u3059\u308b\u3060\u3051\u3067\u5fa9\u65e7\u306e\u6210\u529f\u7387\u304c\u4e0a\u304c\u308a\u3084\u3059\u3044\u3067\u3059\u3002\u6697\u53f7\u5316\uff08BitLocker\/LUKS\uff09\u3084\u4eee\u60f3\u57fa\u76e4\u306e\u30c7\u30a3\u30b9\u30af\u3001\u696d\u52d9\u30a2\u30d7\u30ea\u306eDB\u304c\u7d61\u3080\u3068\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u76f8\u5f53\u306e\u5185\u90e8\u52d5\u4f5c\u3067\u3082\u72b6\u614b\u304c\u5909\u308f\u308b\u305f\u3081\u3001\u5bfe\u8c61\u7bc4\u56f2\u3092\u5148\u306b\u78ba\u5b9a\u3057\u307e\u3059\u3002<\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n<div style=\"height:10px; max-width:100%; box-sizing:border-box; overflow:visible;\"><\/div>\n\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #fed7aa; border-radius:3px; padding:12px; background:#fff7ed;\">\n  <div style=\"font-size:15px; font-weight:700; margin:0 0 8px 0; overflow-wrap:anywhere; max-width:100%;\">\u5931\u6557\u3059\u308b\u3068\u3069\u3046\u306a\u308b\uff1f\uff08\u3084\u308a\u304c\u3061\u306a\u30df\u30b9\u3068\u8d77\u3053\u308a\u5f97\u308b\u7d50\u679c\uff09<\/div>\n  <ul style=\"margin:0; padding:0 0 0 18px; color:#111827; max-width:100%; box-sizing:border-box; overflow:visible;\">\n    <li style=\"margin:6px 0; line-height:1.6; overflow-wrap:anywhere; max-width:100%;\">\u300c\u4fee\u5fa9\u300d\u3084\u300c\u521d\u671f\u5316\u300d\u3067\u66f8\u304d\u8fbc\u307f\u304c\u5897\u3048\u3001\u8aad\u3081\u3066\u3044\u305f\u9818\u57df\u307e\u3067\u8aad\u307f\u51fa\u3057\u4e0d\u80fd\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n    <li style=\"margin:6px 0; line-height:1.6; overflow-wrap:anywhere; max-width:100%;\">OS\u8d77\u52d5\u30c7\u30a3\u30b9\u30af\u3068\u3057\u3066\u4f7f\u3044\u7d9a\u3051\u308b\u3068\u3001\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u66f4\u65b0\u3084TRIM\u76f8\u5f53\u306e\u52d5\u304d\u304c\u5165\u308a\u3001\u72b6\u6cc1\u304c\u52d5\u304d\u3084\u3059\u3044\u3067\u3059\u3002<\/li>\n    <li style=\"margin:6px 0; line-height:1.6; overflow-wrap:anywhere; max-width:100%;\">\u96fb\u6e90\u306e\u5165\u308c\u76f4\u3057\u3092\u7e70\u308a\u8fd4\u3059\u3068\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304c\u4e0d\u5b89\u5b9a\u306b\u306a\u308a\u3001\u8a8d\u8b58\u3067\u304d\u308b\u6642\u9593\u304c\u77ed\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n    <li style=\"margin:6px 0; line-height:1.6; overflow-wrap:anywhere; max-width:100%;\">\u8aa4\u3063\u305f\u6a29\u9650\u5909\u66f4\u3084\u5171\u6709\u8a2d\u5b9a\u306e\u5909\u66f4\u304c\u6df7\u3056\u308b\u3068\u3001\u505c\u6b62\u3084\u6f0f\u3048\u3044\u3001\u76e3\u67fbNG\u3001\u5fa9\u65e7\u9577\u671f\u5316\u306b\u7e4b\u304c\u308a\u3084\u3059\u3044\u3067\u3059\u3002<\/li>\n  <\/ul>\n<\/div>\n\n<div style=\"height:10px; max-width:100%; box-sizing:border-box; overflow:visible;\"><\/div>\n\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:12px; background:#ffffff;\">\n  <div style=\"font-size:15px; font-weight:700; margin:0 0 6px 0; overflow-wrap:anywhere; max-width:100%;\">\u8ff7\u3063\u305f\u3089\uff1a\u7121\u6599\u3067\u76f8\u8ac7\u3067\u304d\u307e\u3059<\/div>\n  <div style=\"font-size:12px; line-height:1.6; color:#374151; margin:0 0 8px 0; overflow-wrap:anywhere; max-width:100%;\">\u5c0f\u3055\u306a\u8ff7\u3044\u306e\u6bb5\u968e\u3067\u5207\u308a\u66ff\u3048\u308b\u307b\u3069\u3001\u6700\u5c0f\u5909\u66f4\u3067\u53ce\u675f\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/div>\n\n  <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #f3f4f6; border-radius:3px; padding:10px; background:#fafafa; margin:0 0 10px 0;\">\n    <div style=\"font-size:12px; line-height:1.7; color:#111827; margin:0; overflow-wrap:anywhere; max-width:100%;\">\n      \u30fb\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u76f8\u5f53\u306e\u52d5\u4f5c\u3092\u3001\u4eca\u306e\u72b6\u614b\u3067\u8a66\u3057\u3066\u3088\u3044\u304b\u8ff7\u3063\u305f\u3089\u3002<br\/>\n      \u30fbSMART\u3084NVMe\u30ed\u30b0\u306e\u898b\u65b9\u306b\u81ea\u4fe1\u304c\u306a\u304f\u3001\u3069\u3053\u304c\u7570\u5e38\u304b\u5224\u65ad\u3067\u304d\u306a\u3044\u3002<br\/>\n      \u30fb\u5bb9\u91cf0\u8868\u793a\u3084\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u8981\u6c42\u304c\u51fa\u3066\u3044\u3066\u3001\u4f55\u304b\u3089\u624b\u3092\u4ed8\u3051\u308b\u304b\u8ff7\u3063\u305f\u3089\u3002<br\/>\n      \u30fb\u6697\u53f7\u5316\uff08BitLocker\/LUKS\uff09\u304c\u7d61\u307f\u3001\u5fa9\u65e7\u624b\u9806\u3092\u9593\u9055\u3048\u305f\u304f\u306a\u3044\u3002<br\/>\n      \u30fb\u30a4\u30e1\u30fc\u30b8\u5316\uff08ddrescue\u7b49\uff09\u306e\u8a2d\u8a08\u304c\u3067\u304d\u305a\u3001\u6642\u9593\u5207\u308c\u304c\u6016\u3044\u3002<br\/>\n      \u30fb\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080\u5834\u5408\u306f\u3001\u7121\u7406\u306b\u6a29\u9650\u3092\u89e6\u308b\u524d\u306b\u76f8\u8ac7\u3059\u308b\u3068\u65e9\u304f\u53ce\u675f\u3057\u3084\u3059\u3044\u3067\u3059\u3002<br\/>\n      \u30fb\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u66f4\u65b0\u3084\u521d\u671f\u5316\u306e\u524d\u306b\u3001\u6700\u5c0f\u5909\u66f4\u3067\u9032\u3081\u305f\u3044\u306e\u306b\u5224\u65ad\u304c\u3064\u304b\u306a\u3044\u3002<br\/>\n      \u30fb\u8a8d\u8b58\u304c\u4e0d\u5b89\u5b9a\u3067\u3001\u4eca\u306e\u3046\u3061\u306b\u4f55\u3092\u512a\u5148\u3059\u3079\u304d\u304b\u8ff7\u3063\u305f\u3089\u3002\n    <\/div>\n  <\/div>\n\n  <div style=\"font-size:13px; line-height:1.7; color:#111827; margin:0 0 10px 0; overflow-wrap:anywhere; max-width:100%;\"><strong>\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u7121\u6599\u76f8\u8ac7<\/div>\n\n  <div style=\"display:flex; flex-wrap:wrap; gap:8px; max-width:100%; box-sizing:border-box; overflow:visible;\">\n    <a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\" style=\"display:inline-block; text-decoration:none; border-radius:3px; padding:10px 12px; background:#2563eb; color:#ffffff; font-size:13px; font-weight:700; overflow-wrap:anywhere; max-width:100%;\">\u7121\u6599\u76f8\u8ac7\u30d5\u30a9\u30fc\u30e0<\/a>\n    <a href=\"tel:0120838831\" style=\"display:inline-block; text-decoration:none; border-radius:3px; padding:10px 12px; background:#1e3a8a; color:#ffffff; font-size:13px; font-weight:700; overflow-wrap:anywhere; max-width:100%;\">\u96fb\u8a71\u3067\u76f8\u8ac7\uff080120-838-831\uff09<\/a>\n    <a href=\"tel:0434224240\" style=\"display:inline-block; text-decoration:none; border-radius:3px; padding:10px 12px; background:#0b1f4b; color:#ffffff; font-size:13px; font-weight:700; overflow-wrap:anywhere; max-width:100%;\">\u6280\u8853\u8005\u76f4\u901a\uff08043-422-4240\uff09<\/a>\n  <\/div>\n\n  <div style=\"height:10px; max-width:100%; box-sizing:border-box; overflow:visible;\"><\/div>\n  <div style=\"font-size:150%; font-weight:700; margin:0; overflow-wrap:anywhere; max-width:100%;\">\u8a73\u3057\u3044\u8aac\u660e\u3068\u5bfe\u7b56\u306f\u4ee5\u4e0b\u672c\u6587\u3078\u3002<\/div>\n<\/div>\n\n  <\/div>\n<\/section>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6fdc62c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6fdc62c\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-94254cd\" data-id=\"94254cd\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-06022bf elementor-widget elementor-widget-html\" data-id=\"06022bf\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div style=\"margin:0; padding:30pt; background-color:#EEEEEE;\"> <p style=\"margin:0 0 8px 0; font-size:1.2em;\"><strong>\u3082\u304f\u3058<\/strong><\/p> <ul style=\"list-style-type:none; padding-left:0; margin:0;\"> <li style=\"margin:40px 0;\"><a href=\"#sec01\">\u7b2c1\u7ae0: \u300eSSD\u306f\u66f8\u304d\u63db\u3048\u56de\u6570\u3055\u3048\u6c17\u306b\u3057\u3066\u304a\u3051\u3070\u3044\u3044\u300f\u306f\u5371\u967a\u306a\u601d\u3044\u8fbc\u307f\u3060\u3063\u305f<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec02\">\u7b2c2\u7ae0: \u30d5\u30e9\u30c3\u30b7\u30e5\u30bb\u30eb\u306e\u201c\u6642\u9593\u306b\u3088\u308b\u52a3\u5316\u201d\u3068\u3044\u3046\u3001\u5730\u5473\u3060\u3051\u3069\u7121\u8996\u3067\u304d\u306a\u3044\u6575<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec03\">\u7b2c3\u7ae0: \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u4f55\u3092\u898b\u3066\u3044\u308b\u306e\u304b\uff1f\u30a8\u30e9\u30fc\u8a02\u6b63\u3068\u3057\u304d\u3044\u5024\u5236\u5fa1\u306e\u88cf\u5074<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec04\">\u7b2c4\u7ae0: \u8aad\u307f\u51fa\u3059\u3060\u3051\u3067\u58ca\u3057\u3066\u3057\u307e\u3046\u73fe\u8c61\uff1a\u30ea\u30fc\u30c9\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6\u3068\u30db\u30c3\u30c8\u30bb\u30eb\u554f\u984c<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec05\">\u7b2c5\u7ae0: \u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3068\u3044\u3046\u767a\u60f3\uff1a\u300c\u66f8\u304d\u63db\u3048\u306a\u3044\u300d\u3067\u306f\u5b88\u308c\u306a\u3044\u30c7\u30fc\u30bf\u4fdd\u6301\u671f\u9593<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec06\">\u7b2c6\u7ae0: \u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u8a2d\u8a08\u8005\u306e\u8996\u70b9\u3067\u898b\u308b\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u6226\u7565\uff08\u6e29\u5ea6\u30fb\u5bff\u547d\u30fb\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\uff09<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec07\">\u7b2c7\u7ae0: \u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30baSSD\u304c\u5b9f\u88c5\u3057\u3066\u3044\u308b\u201c\u9759\u304b\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u201d\u3068\u305d\u306e\u9650\u754c<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec08\">\u7b2c8\u7ae0: \u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u304c\u9593\u306b\u5408\u308f\u306a\u304b\u3063\u305f\u3068\u304d\u306b\u4f55\u304c\u8d77\u304d\u308b\u304b\uff1a\u30c7\u30fc\u30bf\u5fa9\u65e7\u73fe\u5834\u304b\u3089\u898b\u305f\u75c7\u72b6<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec09\">\u7b2c9\u7ae0: \u904b\u7528\u3067\u3067\u304d\u308b\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u88dc\u5b8c\u7b56\uff1a\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u30b9\u30ad\u30e3\u30f3\u3068\u518d\u914d\u7f6e\u8a2d\u8a08<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec10\">\u7b2c10\u7ae0: \u300c\u58ca\u308c\u305f\u3089\u5fa9\u65e7\u300d\u304b\u3089\u300c\u58ca\u308c\u308b\u524d\u306b\u52a3\u5316\u3092\u8a2d\u8a08\u3059\u308b\u300d\u3078\uff1aSSD\u6642\u4ee3\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u6307\u91dd<\/a><\/li> <\/ul> <\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6aa161f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6aa161f\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9753b7f\" data-id=\"9753b7f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9cdd6cc elementor-widget elementor-widget-html\" data-id=\"9cdd6cc\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<a id=\"sec01\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u300eSSD\u306f\u66f8\u304d\u63db\u3048\u56de\u6570\u3055\u3048\u6c17\u306b\u3057\u3066\u304a\u3051\u3070\u3044\u3044\u300f\u306f\u5371\u967a\u306a\u601d\u3044\u8fbc\u307f\u3060\u3063\u305f<\/h2> <p>\u300cTBW \u3055\u3048\u8d85\u3048\u306a\u304d\u3083\u5927\u4e08\u592b\u3067\u3057\u3087\u300d\u300cDWPD \u306e\u8a08\u7b97\u3001\u3056\u3063\u304f\u308a\u3053\u306e\u304f\u3089\u3044\u3060\u304b\u3089\u3001\u307e\u3042\u5bff\u547d\u306f\u8db3\u308a\u308b\u306f\u305a\u300d\u3002\u2015\u2015\u30a4\u30f3\u30d5\u30e9\u3084\u30a2\u30d7\u30ea\u57fa\u76e4\u3092\u89e6\u3063\u3066\u3044\u308b\u3068\u3001\u3053\u3093\u306a\u4f1a\u8a71\u3092\u3069\u3053\u304b\u3067\u4e00\u5ea6\u306f\u805e\u3044\u305f\u3053\u3068\u304c\u3042\u308b\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p> <p>\u73fe\u5834\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u8996\u70b9\u3067\u898b\u308b\u3068\u3001SSD\u306e\u5bff\u547d\u306f\u3069\u3046\u3057\u3066\u3082\u300c\u66f8\u304d\u8fbc\u307f\u56de\u6570\u300d\u4e2d\u5fc3\u306e\u8b70\u8ad6\u306b\u306a\u308a\u304c\u3061\u3067\u3059\u3002\u30b9\u30da\u30c3\u30af\u8868\u306b\u3082 TBW\uff08Total Bytes Written\uff09\u3084 DWPD\uff08Drive Writes Per Day\uff09\u3068\u3044\u3063\u305f\u6307\u6a19\u304c\u592a\u5b57\u3067\u8f09\u3063\u3066\u304a\u308a\u3001\u300c\u3053\u308c\u3055\u3048\u5b88\u308c\u3070\u5b89\u5168\u300d\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u898b\u3048\u3066\u3057\u307e\u3046\u304b\u3089\u3067\u3059\u3002<\/p> <p>\u4e00\u65b9\u3067\u3001\u30c7\u30fc\u30bf\u5fa9\u65e7\u306e\u73fe\u5834\u306b\u3044\u308b\u3068\u3001\u5c11\u3057\u9055\u3046\u666f\u8272\u304c\u898b\u3048\u3066\u304d\u307e\u3059\u3002\u66f8\u304d\u8fbc\u307f\u56de\u6570\u306f\u305d\u308c\u307b\u3069\u591a\u304f\u306a\u3044\u306e\u306b\u3001\u9577\u671f\u9593\u89e6\u3089\u308c\u306a\u304b\u3063\u305f\u9818\u57df\u3060\u3051\u304c\u58ca\u308c\u3066\u3044\u308b\u3002\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u7528\u9014\u3067\u307b\u3068\u3093\u3069\u8aad\u307f\u66f8\u304d\u3055\u308c\u306a\u304b\u3063\u305f\u306f\u305a\u306e SSD \u304c\u3001\u3042\u308b\u65e5\u7a81\u7136\u30de\u30a6\u30f3\u30c8\u3067\u304d\u306a\u3044\u3002\u30ed\u30b0\u3092\u8ffd\u3046\u3068\u3001\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u30ec\u30d9\u30eb\u3067\u306f\u306a\u304f\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u30bb\u30eb\u30ec\u30d9\u30eb\u306e\u30a8\u30e9\u30fc\u304c\u9759\u304b\u306b\u84c4\u7a4d\u3057\u3066\u3044\u308b\u2015\u2015\u305d\u3093\u306a\u30b1\u30fc\u30b9\u304c\u3001\u4e00\u5b9a\u306e\u983b\u5ea6\u3067\u767a\u751f\u3057\u307e\u3059\u3002<\/p> <p>\u3053\u3053\u3067\u591a\u304f\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u62b1\u304f\u672c\u97f3\u306f\u3001\u304a\u305d\u3089\u304f\u3053\u3093\u306a\u3082\u306e\u3067\u3059\u3002<\/p> <p>\u300c\u3048\u3001\u66f8\u3044\u3066\u306a\u3044\u306e\u306b\u58ca\u308c\u308b\u306e\uff1f\u300d\u300c\u201c\u66f8\u304d\u3059\u304e\u3066\u30c0\u30e1\u201d\u306a\u3089\u5206\u304b\u308b\u3051\u3069\u3001\u201c\u66f8\u3044\u3066\u306a\u3044\u306e\u306b\u30c0\u30e1\u201d\u306f\u76f4\u611f\u306b\u53cd\u3059\u308b\u3093\u3060\u3051\u3069\u2026\u300d<\/p> <p>\u5b9f\u306f\u3001NAND\u30d5\u30e9\u30c3\u30b7\u30e5\u306e\u30bb\u30eb\u306f\u300c\u66f8\u304d\u63db\u3048\u56de\u6570\u300d\u3060\u3051\u3067\u306a\u304f\u3001\u300c\u6642\u9593\u300d\u3068\u300c\u6e29\u5ea6\u300d\u3068\u300c\u8aad\u307f\u51fa\u3057\u30d1\u30bf\u30fc\u30f3\u300d\u306b\u3088\u3063\u3066\u3082\u7740\u5b9f\u306b\u52a3\u5316\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u66f8\u304d\u8fbc\u307f\u3092\u63a7\u3048\u3066\u3044\u3066\u3082\u3001\u30bb\u30eb\u306b\u9589\u3058\u8fbc\u3081\u305f\u96fb\u8377\u306f\u5c11\u3057\u305a\u3064\u9003\u3052\u3066\u3044\u304d\u3001\u3057\u304d\u3044\u5024\u96fb\u5727\u306e\u30de\u30fc\u30b8\u30f3\u306f\u72ed\u307e\u308a\u3001\u30a8\u30e9\u30fc\u8a02\u6b63\u7b26\u53f7\uff08ECC\uff09\u304c\u88dc\u3044\u304d\u308c\u306a\u3044\u30e9\u30a4\u30f3\u3092\u3044\u3064\u304b\u8d85\u3048\u307e\u3059\u3002<\/p> <p>\u3053\u306e\u30ae\u30e3\u30c3\u30d7\u2015\u2015\u300c\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u76f4\u611f\u300d\u3068\u300c\u7269\u7406\u73fe\u8c61\u3068\u3057\u3066\u306e\u30d5\u30e9\u30c3\u30b7\u30e5\u30bb\u30eb\u306e\u632f\u308b\u821e\u3044\u300d\u306e\u30ba\u30ec\u2015\u2015\u304c\u3001SSD\u6642\u4ee3\u306e\u8a2d\u8a08\u30df\u30b9\u3084\u60f3\u5b9a\u5916\u30c8\u30e9\u30d6\u30eb\u306e\u6e29\u5e8a\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u305d\u3057\u3066\u305d\u306e\u57cb\u3081\u5408\u308f\u305b\u3068\u3057\u3066\u751f\u307e\u308c\u305f\u306e\u304c\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u5074\u306e\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\uff08\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\uff0f\u30ea\u30fc\u30c9\u30b9\u30af\u30e9\u30d3\u30f3\u30b0\uff0f\u30c7\u30fc\u30bf\u30ea\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u306a\u3069\u5404\u793e\u547c\u3073\u65b9\u306f\u3055\u307e\u3056\u307e\uff09\u3068\u3044\u3046\u767a\u60f3\u3067\u3059\u3002<\/p> <p>\u672c\u7ae0\u3067\u306f\u307e\u305a\u3001\u300c\u66f8\u304d\u63db\u3048\u56de\u6570\u3055\u3048\u898b\u3066\u3044\u308c\u3070\u3088\u3044\u300d\u3068\u3044\u3046\u7d20\u6734\u306a\u30e2\u30c7\u30eb\u304c\u3069\u3053\u307e\u3067\u6b63\u3057\u304f\u3066\u3001\u3069\u3053\u304b\u3089\u5371\u967a\u306a\u5358\u7d14\u5316\u306b\u306a\u308b\u306e\u304b\u3092\u6574\u7406\u3057\u307e\u3057\u305f\u3002\u6b21\u7ae0\u4ee5\u964d\u3067\u306f\u3001\u305d\u306e\u524d\u63d0\u3092\u5c11\u3057\u305a\u3064\u307b\u3050\u3057\u306a\u304c\u3089\u3001<\/p> <ul> <li>\u30d5\u30e9\u30c3\u30b7\u30e5\u30bb\u30eb\u304c\u6642\u9593\u3068\u3068\u3082\u306b\u3069\u3046\u5909\u5316\u3057\u3066\u3044\u304f\u306e\u304b<\/li> <li>SSD\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304c\u5185\u90e8\u3067\u3069\u3093\u306a\u300c\u898b\u3048\u306a\u3044\u8abf\u6574\u300d\u3092\u3057\u3066\u3044\u308b\u306e\u304b<\/li> <li>\u305d\u308c\u3067\u3082\u9593\u306b\u5408\u308f\u306a\u304b\u3063\u305f\u3068\u304d\u3001\u5fa9\u65e7\u73fe\u5834\u3067\u306f\u4f55\u304c\u898b\u3048\u3066\u3044\u308b\u306e\u304b<\/li> <\/ul> <p>\u3068\u3044\u3046\u9806\u756a\u3067\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3068\u30c7\u30fc\u30bf\u5fa9\u65e7\u3092\u4e00\u672c\u306e\u30b9\u30c8\u30fc\u30ea\u30fc\u3068\u3057\u3066\u8ffd\u3044\u304b\u3051\u3066\u3044\u304d\u307e\u3059\u3002\u6700\u7d42\u7684\u306b\u306f\u3001\u300cTBW \u3092\u5b88\u308b\u300d\u304b\u3089\u4e00\u6b69\u9032\u3093\u3067\u3001\u300c\u30bb\u30eb\u306e\u52a3\u5316\u3092\u524d\u63d0\u306b\u3057\u305f\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3068\u904b\u7528\u300d\u3092\u3069\u3046\u8a2d\u8a08\u3059\u308b\u304b\u3001\u3068\u3044\u3046\u5e30\u7d50\u306b\u305f\u3069\u308a\u7740\u304f\u306e\u304c\u3053\u306e\u9023\u8f09\u306e\u30b4\u30fc\u30eb\u3067\u3059\u3002<\/p>\r\n\r\n\r\n\r\n<a id=\"sec02\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u30d5\u30e9\u30c3\u30b7\u30e5\u30bb\u30eb\u306e\u201c\u6642\u9593\u306b\u3088\u308b\u52a3\u5316\u201d\u3068\u3044\u3046\u3001\u5730\u5473\u3060\u3051\u3069\u7121\u8996\u3067\u304d\u306a\u3044\u6575<\/h2> <p>SSD\u306e\u4e2d\u8eab\u3067\u3042\u308b NAND \u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u306f\u3001\u300c\u30bb\u30eb\u306b\u96fb\u8377\u3092\u8caf\u3081\u305f\u308a\u629c\u3044\u305f\u308a\u3057\u3066\u3001\u3057\u304d\u3044\u5024\u96fb\u5727\u306e\u9055\u3044\u3067 0\/1\uff08\u3042\u308b\u3044\u306f\u305d\u308c\u4ee5\u4e0a\u306e\u591a\u5024\uff09\u3092\u8868\u73fe\u3059\u308b\u300d\u534a\u5c0e\u4f53\u7d20\u5b50\u3067\u3059\u3002\u3053\u3053\u307e\u3067\u306f\u6559\u79d1\u66f8\u3069\u304a\u308a\u3067\u3059\u304c\u3001\u904b\u7528\u4e0a\u91cd\u8981\u306a\u306e\u306f\u3001\u3053\u306e\u96fb\u8377\u304c\u300c\u6c38\u9060\u306b\u300d\u5b89\u5b9a\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3001\u3068\u3044\u3046\u70b9\u3067\u3059\u3002<\/p> <p>\u30bb\u30eb\u306b\u96fb\u8377\u3092\u66f8\u304d\u8fbc\u3093\u3060\u76f4\u5f8c\u306f\u3001\u3057\u304d\u3044\u5024\u96fb\u5727\u306e\u5206\u5e03\u306b\u5341\u5206\u306a\u30de\u30fc\u30b8\u30f3\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u6642\u9593\u304c\u7d4c\u3064\u3068\u3001\u30c8\u30f3\u30cd\u30eb\u9178\u5316\u819c\u3092\u901a\u3058\u3066\u5c11\u3057\u305a\u3064\u96fb\u8377\u304c\u6f0f\u308c\u3066\u3044\u304d\u3001\u5206\u5e03\u306e\u30d4\u30fc\u30af\u304c\u3058\u308f\u3058\u308f\u3068\u30ba\u30ec\u305f\u308a\u3001\u5e83\u304c\u3063\u305f\u308a\u3057\u307e\u3059\u3002\u3053\u306e\u73fe\u8c61\u304c\u3044\u308f\u3086\u308b\u300c\u30c7\u30fc\u30bf\u4fdd\u6301\u7279\u6027\uff08\u30c7\u30fc\u30bf\u30ea\u30c6\u30f3\u30b7\u30e7\u30f3\uff09\u300d\u306e\u554f\u984c\u3067\u3001P\/E\uff08\u30d7\u30ed\u30b0\u30e9\u30e0\uff0f\u30a4\u30ec\u30fc\u30b9\uff09\u30b5\u30a4\u30af\u30eb\u304c\u5897\u3048\u308b\u307b\u3069\u60aa\u5316\u3057\u3001\u9ad8\u6e29\u74b0\u5883\u3067\u306f\u3055\u3089\u306b\u9032\u884c\u304c\u65e9\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u3088\u304f\u3042\u308b\u8aa4\u89e3\u306f\u3001\u300c\u66f8\u304d\u8fbc\u307f\u56de\u6570\u304c\u5c11\u306a\u3051\u308c\u3070\u3001\u30c7\u30fc\u30bf\u4fdd\u6301\u671f\u9593\u306f\u9577\u3044\u306f\u305a\u3060\u304b\u3089\u554f\u984c\u306b\u306a\u3089\u306a\u3044\u3060\u308d\u3046\u300d\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002\u78ba\u304b\u306b\u3001P\/E \u56de\u6570\u304c\u5c11\u306a\u3044\u30bb\u30eb\u306f\u3001\u30b9\u30da\u30c3\u30af\u4e0a\u3082\u9577\u3044\u4fdd\u6301\u671f\u9593\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u73fe\u5b9f\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001<\/p> <ul> <li>24\u6642\u9593\u901a\u96fb\u3057\u3063\u3071\u306a\u3057\u306e\u30b5\u30fc\u30d0\u30fc\u30e9\u30c3\u30af\u5185\u3067\u6e29\u5ea6\u304c\u9ad8\u3081\u306b\u63a8\u79fb\u3057\u3066\u3044\u308b<\/li> <li>\u201c\u3042\u307e\u308a\u89e6\u3089\u306a\u3044\u201d\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u9818\u57df\u307b\u3069\u3001\u9577\u671f\u9593\u30ce\u30fc\u30c1\u30a7\u30c3\u30af\u306e\u307e\u307e\u653e\u7f6e\u3055\u308c\u308b<\/li> <li>\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3084\u30a2\u30d7\u30ea\u304c\u3001\u58ca\u308c\u305f\u30d3\u30c3\u30c8\u3092\u300c\u305f\u307e\u305f\u307e\u4f7f\u3046\u305d\u306e\u77ac\u9593\u307e\u3067\u300d\u691c\u51fa\u3057\u306a\u3044<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u8981\u7d20\u304c\u91cd\u306a\u308a\u3001\u300c\u66f8\u304d\u8fbc\u307f\u306f\u5c11\u306a\u3044\u304c\u3001\u9577\u671f\u9593\u306b\u308f\u305f\u3063\u3066\u53b3\u3057\u3044\u6761\u4ef6\u306b\u3055\u3089\u3055\u308c\u3066\u3044\u308b\u30bb\u30eb\u300d\u304b\u3089\u554f\u984c\u304c\u9855\u5728\u5316\u3059\u308b\u30b1\u30fc\u30b9\u304c\u76ee\u7acb\u3061\u307e\u3059\u3002\u3053\u308c\u306f\u3001HDD \u3067\u3044\u3046\u3068\u3053\u308d\u306e\u300c\u30b9\u30d4\u30f3\u3055\u305b\u3063\u3071\u306a\u3057\u306e\u307e\u307e\u9577\u5e74\u653e\u7f6e\u3057\u305f\u30d7\u30e9\u30c3\u30bf\u300d\u306e\u30a4\u30e1\u30fc\u30b8\u306b\u8fd1\u3044\u3067\u3059\u304c\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u3067\u306f\u96fb\u8377\u306e\u30c9\u30ea\u30d5\u30c8\u3068\u3044\u3046\u5225\u7a2e\u306e\u30e1\u30ab\u30cb\u30ba\u30e0\u3067\u8d77\u3053\u308a\u307e\u3059\u3002<\/p> <hr> <p>\u3055\u3089\u306b\u3084\u3084\u3053\u3057\u3044\u306e\u306f\u3001\u8fd1\u5e74\u4e3b\u6d41\u306e TLC \/ QLC \u306a\u3069\u3001\u591a\u5024\u8a18\u9332\u30bb\u30eb\u3067\u306f 1\u30bb\u30eb\u3042\u305f\u308a\u306b\u6301\u305f\u305b\u308b\u72b6\u614b\u6570\u304c\u5897\u3048\u3066\u304a\u308a\u3001\u300c\u96fb\u5727\u30de\u30fc\u30b8\u30f3\u300d\u304c\u76f8\u5bfe\u7684\u306b\u72ed\u304f\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002\u3056\u3063\u304f\u308a\u8a00\u3048\u3070\u3001<\/p> <ul> <li>\u30b7\u30f3\u30b0\u30eb\u30ec\u30d9\u30eb\u30bb\u30eb\uff08SLC\uff09\uff1a0\/1 \u306e 2\u5024 \u2192 \u3057\u304d\u3044\u5024\u306e\u9593\u306b\u4f59\u88d5\u304c\u3042\u308b<\/li> <li>\u30de\u30eb\u30c1\u30ec\u30d9\u30eb\u30bb\u30eb\uff08MLC\/TLC\/QLC\uff09\uff1a\u72b6\u614b\u6570\u304c\u5897\u3048\u308b \u2192 \u3057\u304d\u3044\u5024\u306e\u5883\u754c\u304c\u7d30\u304b\u304f\u523b\u307e\u308c\u308b<\/li> <\/ul> <p>\u3068\u3044\u3046\u69cb\u9020\u306e\u305f\u3081\u3001\u540c\u3058\u3060\u3051\u96fb\u8377\u304c\u30c9\u30ea\u30d5\u30c8\u3057\u3066\u3082\u3001\u8aa4\u5224\u5b9a\u306e\u30ea\u30b9\u30af\u304c\u9ad8\u307e\u308a\u3084\u3059\u3044\u306e\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u5074\u306f ECC \u3092\u5f37\u5316\u3057\u3001\u3057\u304d\u3044\u5024\u96fb\u5727\u306e\u53c2\u7167\u30ec\u30d9\u30eb\u3092\u52d5\u7684\u306b\u8abf\u6574\u3059\u308b\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u5de5\u592b\u3067\u300c\u6642\u9593\u306b\u3088\u308b\u52a3\u5316\u300d\u3092\u5438\u53ce\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p> <p>\u305f\u3060\u3057\u3001\u3053\u308c\u3089\u306e\u5bfe\u7b56\u306f\u3042\u304f\u307e\u3067\u7d71\u8a08\u7684\u30fb\u78ba\u7387\u7684\u306a\u4e16\u754c\u306e\u8a71\u3067\u3059\u3002\u300c\u4f55\u5e74\u7d4c\u3063\u3066\u3082\u7d76\u5bfe\u306b\u58ca\u308c\u306a\u3044\u300d\u308f\u3051\u3067\u306f\u306a\u304f\u3001\u300c\u4e00\u5b9a\u306e\u6761\u4ef6\u306a\u3089\u3001\u7d71\u8a08\u7684\u306b\u8a31\u5bb9\u3067\u304d\u308b\u30a8\u30e9\u30fc\u7387\u306b\u53ce\u307e\u308b\u3088\u3046\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u300d\u3060\u3051\u3067\u3059\u3002\u305d\u3057\u3066\u3001\u3053\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u5d29\u308c\u305f\u3068\u304d\u306b\u3001<\/p> <ul> <li>\u7a81\u7136 I\/O \u30a8\u30e9\u30fc\u304c\u5897\u3048\u308b<\/li> <li>\u7279\u5b9a\u306e LBA \u7bc4\u56f2\u3060\u3051\u8aad\u307f\u51fa\u3057\u306b\u6642\u9593\u304c\u304b\u304b\u308b<\/li> <li>\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u304c\u6574\u5408\u6027\u30a8\u30e9\u30fc\u3092\u691c\u51fa\u3059\u308b<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u73fe\u8c61\u3068\u3057\u3066\u8868\u9762\u5316\u3057\u307e\u3059\u3002<\/p> <p>\u3053\u306e\u7ae0\u3067\u62bc\u3055\u3048\u3066\u304a\u304d\u305f\u3044\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u300cSSD \u306e\u30bb\u30eb\u306f\u3001\u66f8\u304d\u8fbc\u307f\u3092\u6b62\u3081\u3066\u3082\u6642\u9593\u3068\u3068\u3082\u306b\u9759\u304b\u306b\u52a3\u5316\u3059\u308b\u300d\u3068\u3044\u3046\u3001\u3054\u304f\u5730\u5473\u306a\u4e8b\u5b9f\u3067\u3059\u3002\u3053\u306e\u201c\u5730\u5473\u306a\u6575\u201d\u3092\u6291\u3048\u8fbc\u3080\u305f\u3081\u306b\u3001\u6b21\u7ae0\u3067\u6271\u3046\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u5185\u90e8\u306e\u30a8\u30e9\u30fc\u8a02\u6b63\u30fb\u3057\u304d\u3044\u5024\u5236\u5fa1\u30fb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u5b58\u5728\u3057\u3066\u3044\u307e\u3059\u3002\u8a00\u3044\u63db\u3048\u308b\u3068\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u6280\u8853\u306f\u300c\u66f8\u304d\u63db\u3048\u3059\u304e\u300d\u3068\u3044\u3046\u3088\u308a\u3001\u300c\u6642\u9593\u306b\u3088\u308b\u52a3\u5316\u3068\u305d\u306e\u63fa\u3089\u304e\u300d\u3092\u5438\u53ce\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3068\u3057\u3066\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\r\n\r\n<a id=\"sec03\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u4f55\u3092\u898b\u3066\u3044\u308b\u306e\u304b\uff1f\u30a8\u30e9\u30fc\u8a02\u6b63\u3068\u3057\u304d\u3044\u5024\u5236\u5fa1\u306e\u88cf\u5074<\/h2> <p>\u3053\u3053\u307e\u3067\u3067\u3001\u300c\u6642\u9593\u306b\u3088\u308b\u30bb\u30eb\u306e\u52a3\u5316\u300d\u304c\u907f\u3051\u3089\u308c\u306a\u3044\u73fe\u8c61\u3067\u3042\u308b\u3053\u3068\u3092\u898b\u3066\u304d\u307e\u3057\u305f\u3002\u3067\u306f\u3001\u305d\u306e\u52a3\u5316\u3068\u65e5\u3005\u5411\u304d\u5408\u3063\u3066\u3044\u308b SSD \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u3001\u5185\u90e8\u3067\u4f55\u3092\u898b\u3066\u3001\u3069\u306e\u3088\u3046\u306b\u632f\u308b\u821e\u3063\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p> <p>\u307e\u305a\u62bc\u3055\u3048\u3066\u304a\u304d\u305f\u3044\u306e\u306f\u3001SSD \u304c\u63d0\u4f9b\u3059\u308b\u300c\u8ad6\u7406\u30d6\u30ed\u30c3\u30af\u30a2\u30c9\u30ec\u30b9\uff08LBA\uff09\u300d\u3068\u3001\u5b9f\u969b\u306b\u30c7\u30fc\u30bf\u304c\u66f8\u304b\u308c\u3066\u3044\u308b\u300c\u7269\u7406\u30d6\u30ed\u30c3\u30af\uff08\u30d5\u30e9\u30c3\u30b7\u30e5\u30d6\u30ed\u30c3\u30af\uff09\u300d\u306e\u9593\u306b\u306f\u3001\u304b\u306a\u308a\u8907\u96d1\u306a\u5909\u63db\u30ec\u30a4\u30e4\uff08FTL: Flash Translation Layer\uff09\u304c\u5b58\u5728\u3059\u308b\u3001\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u306f\u300cLBA \u306b\u8aad\u307f\u66f8\u304d\u3057\u3066\u3044\u308b\u300d\u3088\u3046\u306b\u898b\u3048\u3066\u3082\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u5185\u90e8\u3067\u306f\u3001<\/p> <ul> <li>\u66f8\u304d\u8fbc\u307f\u30d1\u30bf\u30fc\u30f3\u306b\u5fdc\u3058\u305f\u30a6\u30a7\u30a2\u30ec\u30d9\u30ea\u30f3\u30b0\uff08\u66f8\u304d\u8fbc\u307f\u56de\u6570\u306e\u5e73\u6e96\u5316\uff09<\/li> <li>GC\uff08\u30ac\u30fc\u30d9\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\uff09\u306b\u3088\u308b\u30d6\u30ed\u30c3\u30af\u306e\u518d\u914d\u7f6e<\/li> <li>\u30ea\u30fc\u30c9\u6642\u306e ECC \u30c7\u30b3\u30fc\u30c9\u3068\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u305f\u518d\u8aad\u307f\u51fa\u3057<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u51e6\u7406\u304c\u5e38\u306b\u8d70\u3063\u3066\u3044\u307e\u3059\u3002<\/p> <p>\u8aad\u307f\u51fa\u3057\u30d1\u30b9\u306b\u7d5e\u3063\u3066\u3082\u3046\u5c11\u3057\u7d30\u304b\u304f\u898b\u3066\u307f\u308b\u3068\u3001\u5178\u578b\u7684\u306a\u6d41\u308c\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <ol> <li>\u30d5\u30e9\u30c3\u30b7\u30e5\u30bb\u30eb\u304b\u3089\u30a2\u30ca\u30ed\u30b0\u7684\u306a\u3057\u304d\u3044\u5024\u96fb\u5727\u3092\u8aad\u307f\u51fa\u3059<\/li> <li>\u3042\u3089\u304b\u3058\u3081\u8a2d\u5b9a\u3055\u308c\u305f\u53c2\u7167\u96fb\u5727\u3068\u306e\u6bd4\u8f03\u306b\u3088\u308a\u3001\u30d3\u30c3\u30c8\u5217\uff08\u591a\u5024\u306e\u5834\u5408\u306f\u30b7\u30f3\u30dc\u30eb\u5217\uff09\u306b\u5909\u63db\u3059\u308b<\/li> <li>ECC\uff08LDPC \u30b3\u30fc\u30c9\u306a\u3069\uff09\u3067\u30d3\u30c3\u30c8\u5217\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u8a02\u6b63\u53ef\u80fd\u306a\u7bc4\u56f2\u3067\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b<\/li> <li>\u8a02\u6b63\u306b\u5fc5\u8981\u3060\u3063\u305f\u30d3\u30c3\u30c8\u6570\u3084\u30ea\u30c8\u30e9\u30a4\u56de\u6570\u306a\u3069\u3092\u7d71\u8a08\u60c5\u5831\u3068\u3057\u3066\u84c4\u7a4d\u3059\u308b<\/li> <\/ol> <p>\u3053\u3053\u3067\u30dd\u30a4\u30f3\u30c8\u306b\u306a\u308b\u306e\u304c 4 \u3064\u76ee\u306e\u300c\u7d71\u8a08\u60c5\u5831\u300d\u3067\u3059\u3002\u30bb\u30eb\u306e\u52a3\u5316\u304c\u9032\u3080\u3068\u3001\u540c\u3058\u30d6\u30ed\u30c3\u30af\u3092\u8aad\u3080\u305f\u3073\u306b ECC \u304c\u8a02\u6b63\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u30d3\u30c3\u30c8\u6570\u304c\u5897\u3048\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u8907\u6570\u56de\u306e\u30ea\u30fc\u30c9\u30fb\u3057\u304d\u3044\u5024\u8abf\u6574\u30fb\u518d\u30c7\u30b3\u30fc\u30c9\u3092\u7e70\u308a\u8fd4\u3059\u5fc5\u8981\u304c\u51fa\u3066\u304d\u307e\u3059\u3002\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u3053\u308c\u3089\u306e\u60c5\u5831\u3092\u3082\u3068\u306b\u3001<\/p> <ul> <li>\u300c\u3053\u306e\u30d6\u30ed\u30c3\u30af\u306f\u305d\u308d\u305d\u308d\u5371\u306a\u3044\u306e\u3067\u3001\u5225\u306e\u5065\u5eb7\u306a\u30d6\u30ed\u30c3\u30af\u306b\u79fb\u305d\u3046\u300d<\/li> <li>\u300c\u3057\u304d\u3044\u5024\u96fb\u5727\u306e\u53c2\u7167\u30ec\u30d9\u30eb\u3092\u5c11\u3057\u30b7\u30d5\u30c8\u3055\u305b\u305f\u65b9\u304c\u3001\u30a8\u30e9\u30fc\u7387\u304c\u4e0b\u304c\u308a\u305d\u3046\u3060\u300d<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u5224\u65ad\u3092\u884c\u3044\u307e\u3059\u3002<\/p> <hr> <p>\u73fe\u5834\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u76ee\u7dda\u3067\u3044\u3046\u3068\u3001\u3053\u308c\u306f\u3061\u3087\u3046\u3069\u300c\u30ed\u30b0\u3092\u898b\u306a\u304c\u3089\u3001\u30b5\u30fc\u30d3\u30b9\u306e\u3057\u304d\u3044\u5024\u3084\u30a2\u30e9\u30fc\u30c8\u6761\u4ef6\u3092\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u3057\u3066\u3044\u304f\u300d\u611f\u899a\u306b\u8fd1\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u30a8\u30e9\u30fc\u8a02\u6b63\u5668\uff08ECC\uff09\u306f\u3001\u5358\u306b\u58ca\u308c\u305f\u30d3\u30c3\u30c8\u3092\u76f4\u3057\u3066\u3044\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u300c\u3069\u306e\u7a0b\u5ea6\u5371\u967a\u306a\u72b6\u614b\u306b\u8fd1\u3065\u3044\u3066\u3044\u308b\u304b\u300d\u3068\u3044\u3046\u30d8\u30eb\u30b9\u6307\u6a19\u3092\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306b\u5bfe\u3057\u3066\u7d99\u7d9a\u7684\u306b\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3057\u3066\u3044\u308b\u5b58\u5728\u3067\u3082\u3042\u308a\u307e\u3059\u3002<\/p> <p>\u3053\u306e\u4ed5\u7d44\u307f\u304c\u3042\u308b\u304a\u304b\u3052\u3067\u3001\u30bb\u30eb\u306e\u52a3\u5316\u306f\u3042\u308b\u7a0b\u5ea6\u307e\u3067\u300c\u5185\u90e8\u3067\u5438\u53ce\u300d\u3055\u308c\u3001\u5916\u304b\u3089\u898b\u3048\u308b I\/O \u30a8\u30e9\u30fc\u3084 SMART \u306e\u81f4\u547d\u7684\u30ab\u30a6\u30f3\u30bf\u304c\u5897\u3048\u308b\u524d\u306b\u3001\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u3067\u30d6\u30ed\u30c3\u30af\u306e\u79fb\u52d5\u3084\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u304c\u884c\u308f\u308c\u307e\u3059\u3002\u9006\u306b\u8a00\u3046\u3068\u3001\u300c\u5916\u304b\u3089\u898b\u3066\u521d\u3081\u3066\u5206\u304b\u308b\u30ec\u30d9\u30eb\u306e\u30a8\u30e9\u30fc\u304c\u51fa\u59cb\u3081\u305f\u300d\u3068\u3044\u3046\u72b6\u614b\u306f\u3001\u5185\u90e8\u3067\u306f\u3059\u3067\u306b\u304b\u306a\u308a\u30ae\u30ea\u30ae\u30ea\u307e\u3067\u8abf\u6574\u30fb\u5ef6\u547d\u304c\u884c\u308f\u308c\u305f\u5f8c\u3001\u3068\u3044\u3046\u30b1\u30fc\u30b9\u3082\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/p> <p>\u30c7\u30fc\u30bf\u5fa9\u65e7\u306e\u7acb\u5834\u304b\u3089\u3059\u308b\u3068\u3001\u3053\u306e\u300c\u5185\u90e8\u3067\u3069\u3053\u307e\u3067\u7c98\u3063\u3066\u3044\u305f\u304b\u300d\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002ECC \u304c\u307e\u3060\u4f59\u88d5\u3092\u6b8b\u3057\u3066\u3044\u308b\u6bb5\u968e\u306a\u3089\u3001\u5c02\u9580\u7684\u306a\u88c5\u7f6e\u3084\u624b\u9806\u3067\u30bb\u30eb\u306e\u72b6\u614b\u3092\u614e\u91cd\u306b\u8aad\u307f\u89e3\u304d\u3001\u8ad6\u7406\u7684\u306b\u7834\u7dbb\u3057\u3066\u3044\u306a\u3044\u30c7\u30fc\u30bf\u3092\u6551\u51fa\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002\u4e00\u65b9\u3001ECC 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<p>\u3053\u306e\u7ae0\u3067\u306e\u4f0f\u7dda\u306f\u3001\u300c\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u30bb\u30eb\u306e\u52a3\u5316\u3092\u5e38\u306b\u89b3\u5bdf\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3084\u30d6\u30ed\u30c3\u30af\u518d\u914d\u7f6e\u3092\u884c\u3063\u3066\u3044\u308b\u300d\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u6b21\u306e\u7ae0\u3067\u306f\u3001\u305d\u306e\u4e2d\u3067\u3082\u7279\u306b\u898b\u843d\u3068\u3055\u308c\u304c\u3061\u306a\u300c\u8aad\u307f\u51fa\u3057\u305d\u306e\u3082\u306e\u304c\u52a3\u5316\u3092\u52a0\u901f\u3055\u305b\u308b\u300d\u30ea\u30fc\u30c9\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6\u73fe\u8c61\u306b\u89e6\u308c\u3064\u3064\u3001\u306a\u305c\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u304c\u300c\u5358\u306a\u308b\u5ef6\u547d\u30c6\u30af\u30cb\u30c3\u30af\u300d\u3067\u306f\u306a\u304f\u3001\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3068\u3057\u3066\u4e0d\u53ef\u6b20\u306a\u8981\u7d20\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u304b\u3092\u6398\u308a\u4e0b\u3052\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\r\n\r\n\r\n\r\n<a id=\"sec04\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u8aad\u307f\u51fa\u3059\u3060\u3051\u3067\u58ca\u3057\u3066\u3057\u307e\u3046\u73fe\u8c61\uff1a\u30ea\u30fc\u30c9\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6\u3068\u30db\u30c3\u30c8\u30bb\u30eb\u554f\u984c<\/h2> <p>\u300c\u8aad\u307f\u8fbc\u307f\u306f\u5b89\u5168\u300d\u300c\u58ca\u3059\u306e\u306f\u66f8\u304d\u8fbc\u307f\u3068\u6d88\u53bb\u3060\u3051\u300d\u3002\u591a\u304f\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u3001\u3069\u3053\u304b\u3067\u305d\u3046\u6559\u308f\u3063\u3066\u304d\u305f\u306f\u305a\u3067\u3059\u3002\u3068\u3053\u308d\u304c NAND \u30d5\u30e9\u30c3\u30b7\u30e5\u306e\u4e16\u754c\u3067\u306f\u3001\u300c\u8aad\u3080\u3060\u3051\u3067\u30bb\u30eb\u3092\u75db\u3081\u3066\u3057\u307e\u3046\u300d\u73fe\u8c61\u304c\u5b58\u5728\u3057\u307e\u3059\u3002\u305d\u308c\u304c\u30ea\u30fc\u30c9\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6\uff08read disturb\uff09\u3067\u3059\u3002<\/p> <p>\u30ea\u30fc\u30c9\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6\u306f\u3001\u7c21\u5358\u306b\u3044\u3046\u3068\u300c\u3042\u308b\u30da\u30fc\u30b8\u3092\u7e70\u308a\u8fd4\u3057\u8aad\u3080\u3053\u3068\u3067\u3001\u540c\u3058\u30d6\u30ed\u30c3\u30af\u5185\u306e\u5225\u30da\u30fc\u30b8\u306e\u30bb\u30eb\u306e\u96fb\u8377\u72b6\u614b\u306b\u5fae\u5c0f\u306a\u5f71\u97ff\u304c\u84c4\u7a4d\u3057\u3001\u6700\u7d42\u7684\u306b\u306f\u30d3\u30c3\u30c8\u53cd\u8ee2\u3092\u5f15\u304d\u8d77\u3053\u3057\u3066\u3057\u307e\u3046\u300d\u73fe\u8c61\u3067\u3059\u3002\u30bb\u30eb\u306f\u5b8c\u5168\u306b\u72ec\u7acb\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u304f\u3001\u540c\u3058\u30ef\u30fc\u30c9\u30e9\u30a4\u30f3\u3084\u30d3\u30c3\u30c8\u30e9\u30a4\u30f3\u3067\u96fb\u5727\u3092\u5171\u6709\u3059\u308b\u305f\u3081\u3001\u975e\u9078\u629e\u30bb\u30eb\u306b\u3082\u30b9\u30c8\u30ec\u30b9\u304c\u304b\u304b\u308a\u307e\u3059\u30021\u56de\u306e\u8aad\u307f\u51fa\u3057\u3067\u306f\u8aa4\u5dee\u30ec\u30d9\u30eb\u3067\u3082\u3001\u305d\u308c\u304c\u6570\u4e07\u56de\u3001\u6570\u5341\u4e07\u56de\u3068\u7a4d\u307f\u91cd\u306a\u308b\u3068\u3001\u7d71\u8a08\u7684\u306b\u306f\u7121\u8996\u3067\u304d\u306a\u3044\u30a8\u30e9\u30fc\u7387\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u904b\u7528\u306e\u73fe\u5834\u3067\u8d77\u3053\u308a\u304c\u3061\u306a\u306e\u306f\u3001\u30ed\u30b0\u3084\u30e1\u30bf\u30c7\u30fc\u30bf\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306a\u3069\u300c\u7279\u5b9a\u306e\u7bc4\u56f2\u3070\u304b\u308a\u304c\u983b\u7e41\u306b\u8aad\u307e\u308c\u308b\u300d\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30db\u30c3\u30c8\u30da\u30fc\u30b8\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u30ad\u30e5\u30fc\u306e\u72b6\u614b\u7ba1\u7406\u9818\u57df\u3001\u30a2\u30af\u30bb\u30b9\u7d71\u8a08\u306e\u30ab\u30a6\u30f3\u30bf\u306a\u3069\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306b\u306a\u3063\u3066\u3044\u308b\u90e8\u5206\u307b\u3069\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u4e0a\u3067\u3082\u300c\u8aad\u307f\u51fa\u3057\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u300d\u306b\u306a\u308a\u304c\u3061\u3067\u3059\u3002<\/p> <p>\u5fc3\u306e\u58f0\u3068\u3057\u3066\u306f\u3001\u3053\u3093\u306a\u672c\u97f3\u304c\u51fa\u3066\u304d\u307e\u3059\u3002<\/p> <p>\u300c\u3048\u3001\u8aad\u3080\u3060\u3051\u3067\u30bb\u30eb\u304c\u75b2\u308c\u308b\u306a\u3089\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3082\u76e3\u8996\u3082\u5168\u90e8\u60aa\u8005\u3058\u3083\u3093\u2026\u300d<br> \u300c\u201c\u8aad\u307f\u53d6\u308a\u8ca0\u8377\u304c\u9ad8\u3044\u30c6\u30fc\u30d6\u30eb\u201d\u306a\u3093\u3066\u3001\u3069\u306e\u30b7\u30b9\u30c6\u30e0\u306b\u3082\u666e\u901a\u306b\u3042\u308b\u3051\u3069\uff1f\u300d<\/p> <p>\u5b9f\u969b\u306b\u306f\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u3053\u306e\u30ea\u30fc\u30c9\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6\u3092\u3042\u308b\u7a0b\u5ea6\u7e54\u308a\u8fbc\u3093\u3067\u8a2d\u8a08\u3055\u308c\u3066\u304a\u308a\u3001\u8aad\u307f\u51fa\u3057\u56de\u6570\u30ab\u30a6\u30f3\u30bf\u3084\u30a8\u30e9\u30fc\u8a02\u6b63\u7d50\u679c\u304b\u3089\u300c\u3053\u306e\u30d6\u30ed\u30c3\u30af\u306f\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6\u304c\u9032\u3093\u3067\u3044\u308b\u300d\u3068\u5224\u65ad\u3059\u308b\u3068\u3001\u5225\u306e\u30d6\u30ed\u30c3\u30af\u306b\u30c7\u30fc\u30bf\u3092\u30b3\u30d4\u30fc\u3057\u3066\u304b\u3089\u5143\u306e\u30d6\u30ed\u30c3\u30af\u3092\u6d88\u53bb\u30fb\u518d\u5229\u7528\u3059\u308b\u3068\u3044\u3063\u305f\u5bfe\u7b56\u3092\u884c\u3044\u307e\u3059\u3002\u3053\u308c\u3082\u5e83\u3044\u610f\u5473\u3067\u306e\u300c\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u300d\u306e\u4e00\u7a2e\u3067\u3059\u3002<\/p> <hr> <p>\u3082\u3046\u3072\u3068\u3064\u3001\u5b9f\u904b\u7528\u3067\u91cd\u8981\u306a\u306e\u304c\u300c\u30db\u30c3\u30c8\u30bb\u30eb\u554f\u984c\u300d\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u7279\u5b9a\u306e\u30bb\u30eb\uff08\u3042\u308b\u3044\u306f\u30d6\u30ed\u30c3\u30af\uff09\u304c\u4ed6\u3088\u308a\u3082\u6975\u7aef\u306b\u30a2\u30af\u30bb\u30b9\u983b\u5ea6\u304c\u9ad8\u304f\u306a\u308b\u3053\u3068\u3067\u3001<\/p> <ul> <li>P\/E \u30b5\u30a4\u30af\u30eb\u306e\u504f\u308a\uff08\u5c40\u6240\u7684\u306a\u5bff\u547d\u306e\u524d\u5012\u3057\uff09<\/li> <li>\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6\u3084\u30ea\u30c6\u30f3\u30b7\u30e7\u30f3\u60aa\u5316\u306e\u65e9\u671f\u9855\u5728\u5316<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u554f\u984c\u304c\u96c6\u4e2d\u3057\u3066\u73fe\u308c\u308b\u73fe\u8c61\u3067\u3059\u3002\u30a6\u30a7\u30a2\u30ec\u30d9\u30ea\u30f3\u30b0\u306f\u672c\u6765\u3053\u306e\u504f\u308a\u3092\u306a\u3089\u3059\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3067\u3059\u304c\u3001LBA \u30ec\u30d9\u30eb\u3067\u504f\u3063\u305f\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u304c\u7d9a\u304f\u3068\u3001\u300c\u3069\u3046\u3057\u3066\u3082\u30db\u30c3\u30c8\u306b\u306a\u308a\u3084\u3059\u3044\u9818\u57df\u300d\u304c\u751f\u307e\u308c\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <p>\u3053\u3053\u307e\u3067\u3092\u6574\u7406\u3059\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306a\u30c6\u30fc\u30d6\u30eb\u3067\u8a8d\u8b58\u3057\u3066\u304a\u304f\u3068\u8a2d\u8a08\u6642\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p> <table border=\"1\" cellpadding=\"4\" cellspacing=\"0\"> <tr style=\"background-color:#eeeeee;\"> <th>\u73fe\u8c61<\/th> <th>\u4e3b\u306a\u539f\u56e0<\/th> <th>\u5178\u578b\u7684\u306a\u767a\u751f\u30d1\u30bf\u30fc\u30f3<\/th> <th>\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u5074\u306e\u5bfe\u7b56<\/th> <\/tr> <tr> <td>\u30ea\u30c6\u30f3\u30b7\u30e7\u30f3\u52a3\u5316<\/td> <td>\u6642\u9593\u7d4c\u904e\u30fb\u6e29\u5ea6\u30fbP\/E \u30b5\u30a4\u30af\u30eb<\/td> <td>\u9577\u671f\u9593\u672a\u30a2\u30af\u30bb\u30b9\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u9818\u57df\u306a\u3069<\/td> <td>\u3057\u304d\u3044\u5024\u8abf\u6574\u3001\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5<\/td> <\/tr> <tr> <td>\u30ea\u30fc\u30c9\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6<\/td> <td>\u540c\u4e00\u30d6\u30ed\u30c3\u30af\u306e\u7e70\u308a\u8fd4\u3057\u8aad\u307f\u51fa\u3057<\/td> <td>\u30db\u30c3\u30c8\u306a\u30e1\u30bf\u30c7\u30fc\u30bf\u3001\u30ed\u30b0\u30d8\u30c3\u30c0\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9<\/td> <td>\u8aad\u307f\u51fa\u3057\u56de\u6570\u76e3\u8996\u3001\u30db\u30c3\u30c8\u30d6\u30ed\u30c3\u30af\u306e\u518d\u914d\u7f6e<\/td> <\/tr> <tr> <td>\u30db\u30c3\u30c8\u30bb\u30eb\u554f\u984c<\/td> <td>\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u306e\u504f\u308a<\/td> <td>\u7279\u5b9a\u30c6\u30fc\u30d6\u30eb\uff0f\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u3078\u306e\u96c6\u4e2d\u30a2\u30af\u30bb\u30b9<\/td> <td>\u30a6\u30a7\u30a2\u30ec\u30d9\u30ea\u30f3\u30b0\u3001FTL \u30dd\u30ea\u30b7\u30fc\u8abf\u6574<\/td> <\/tr> <\/table> <p>\u3053\u306e\u7ae0\u3067\u306e\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u300c\u8aad\u307f\u51fa\u3057\u3059\u3089\u30bb\u30eb\u3092\u52a3\u5316\u3055\u305b\u5f97\u308b\u300d\u300c\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u306f\u5bff\u547d\u9762\u3067\u3082\u5371\u967a\u300d\u3068\u3044\u3046\u3001\u76f4\u611f\u306b\u53cd\u3059\u308b\u4e8b\u5b9f\u3067\u3059\u3002\u3053\u306e\u4f0f\u7dda\u304c\u3001\u6b21\u7ae0\u306e\u300c\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3068\u3044\u3046\u767a\u60f3\u300d\u306b\u7e4b\u304c\u308a\u307e\u3059\u3002\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u306f\u3001\u5358\u306b\u300c\u66f8\u304d\u63db\u3048\u56de\u6570\u3092\u6e1b\u3089\u3059\u300d\u306e\u9006\u3067\u306f\u306a\u304f\u3001\u300c\u30ea\u30c6\u30f3\u30b7\u30e7\u30f3\u300d\u300c\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6\u300d\u300c\u30db\u30c3\u30c8\u30bb\u30eb\u300d\u306e3\u3064\u3092\u540c\u6642\u306b\u6271\u3046\u305f\u3081\u306e\u7dcf\u5408\u7684\u306a\u4ed5\u7d44\u307f\u3068\u3057\u3066\u4f4d\u7f6e\u3065\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\r\n\r\n\r\n<a id=\"sec05\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3068\u3044\u3046\u767a\u60f3\uff1a\u300c\u66f8\u304d\u63db\u3048\u306a\u3044\u300d\u3067\u306f\u5b88\u308c\u306a\u3044\u30c7\u30fc\u30bf\u4fdd\u6301\u671f\u9593<\/h2> <p>\u3053\u3053\u3067\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u306e\u57fa\u672c\u7684\u306a\u8003\u3048\u65b9\u3092\u6574\u7406\u3057\u307e\u3059\u3002\u76f4\u611f\u7684\u306b\u306f\u3001\u300c\u66f8\u304d\u63db\u3048\u306f\u5bff\u547d\u3092\u524a\u308b\u884c\u70ba\u3060\u304b\u3089\u3001\u306a\u308b\u3079\u304f\u89e6\u3089\u306a\u3044\u65b9\u304c\u5b89\u5168\u300d\u3068\u3044\u3046\u767a\u60f3\u306b\u306a\u308a\u304c\u3061\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u30ea\u30c6\u30f3\u30b7\u30e7\u30f3\u52a3\u5316\u3068\u30ea\u30fc\u30c9\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6\u306e\u5b58\u5728\u3092\u8e0f\u307e\u3048\u308b\u3068\u3001\u300c\u6562\u3048\u3066\u66f8\u304d\u76f4\u3059\u300d\u3053\u3068\u3067\u30bb\u30eb\u306e\u72b6\u614b\u3092\u30ea\u30bb\u30c3\u30c8\u3057\u3001\u7d50\u679c\u7684\u306b\u30c7\u30fc\u30bf\u4fdd\u6301\u3092\u5ef6\u547d\u3059\u308b\u3001\u3068\u3044\u3046\u9006\u8ee2\u306e\u767a\u60f3\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u306e\u5178\u578b\u7684\u306a\u6d41\u308c\u306f\u3001\u6982\u306d\u6b21\u306e\u3088\u3046\u306a\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<\/p> <ol> <li>\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u3067\u30d6\u30ed\u30c3\u30af\u306e\u5065\u5168\u6027\u6307\u6a19\uff08ECC \u8a02\u6b63\u30d3\u30c3\u30c8\u6570\u3001\u30ea\u30fc\u30c9\u56de\u6570\u306a\u3069\uff09\u3092\u76e3\u8996\u3059\u308b<\/li> <li>\u3057\u304d\u3044\u5024\u3092\u8d85\u3048\u305f\u30d6\u30ed\u30c3\u30af\u3092\u300c\u8981\u6ce8\u610f\u300d\u3068\u3057\u3066\u30ad\u30e5\u30fc\u306b\u7a4d\u3080<\/li> <li>\u30db\u30b9\u30c8 I\/O \u304c\u8584\u3044\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u3001\u305d\u306e\u30d6\u30ed\u30c3\u30af\u306e\u5185\u5bb9\u3092\u8aad\u307f\u51fa\u3057\u3001\u691c\u8a3c\u3059\u308b<\/li> <li>\u554f\u984c\u306a\u3051\u308c\u3070\u3001\u3088\u308a\u5065\u5168\u306a\u5225\u30d6\u30ed\u30c3\u30af\u306b\u518d\u66f8\u304d\u8fbc\u307f\u3057\u3001\u5143\u30d6\u30ed\u30c3\u30af\u3092\u6d88\u53bb\u3057\u3066\u30d7\u30fc\u30eb\u306b\u623b\u3059<\/li> <\/ol> <p>\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u306f\u3001P\/E \u30b5\u30a4\u30af\u30eb\u304c 1\u56de\u5897\u3048\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u304c\u3001<\/p> <ul> <li>\u300c\u8fd1\u3044\u5c06\u6765 ECC \u3067\u3082\u652f\u3048\u304d\u308c\u306a\u304f\u306a\u308b\u30ea\u30b9\u30af\u300d<\/li> <li>\u300c\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u306b\u3088\u3063\u3066\u82e5\u3044\u30d6\u30ed\u30c3\u30af\u306b\u79fb\u3059\u30e1\u30ea\u30c3\u30c8\u300d<\/li> <\/ul> <p>\u3092\u5929\u79e4\u306b\u304b\u3051\u305f\u3046\u3048\u3067\u3001\u300c\u4eca\u30011 \u56de P\/E \u3092\u6d88\u8cbb\u3059\u308b\u65b9\u304c\u30c8\u30fc\u30bf\u30eb\u3067\u5b89\u5168\u300d\u3068\u5224\u65ad\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u3002<\/p> <p>\u73fe\u5834\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u3057\u3066\u306f\u3001\u300c\u52dd\u624b\u306b\u305d\u3093\u306a\u3053\u3068\u3092\u3055\u308c\u308b\u3068\u3001\u5bff\u547d\u8a08\u7b97\u304c\u5408\u308f\u306a\u304f\u306a\u308b\u306e\u3067\u306f\uff1f\u300d\u3068\u3044\u3046\u4e0d\u5b89\u304c\u3088\u304e\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u5b9f\u969b\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3084 GC \u306e\u52d5\u304d\u306f\u5916\u304b\u3089\u306f\u898b\u3048\u3065\u3089\u304f\u3001\u30db\u30b9\u30c8\u304b\u3089\u89b3\u6e2c\u3067\u304d\u308b\u66f8\u304d\u8fbc\u307f\u91cf\uff08\u30db\u30b9\u30c8\u30e9\u30a4\u30c8\uff09\u3068\u3001\u5b9f\u969b\u306e\u30d5\u30e9\u30c3\u30b7\u30e5\u66f8\u304d\u8fbc\u307f\u91cf\uff08NAND\u30e9\u30a4\u30c8\uff09\u306e\u5dee\u5206\u3068\u3057\u3066\u3057\u304b\u73fe\u308c\u307e\u305b\u3093\u3002<\/p> <p>\u305f\u3060\u3057\u3001\u3053\u3053\u306b\u3082\u5408\u7406\u7684\u306a\u80cc\u666f\u304c\u3042\u308a\u307e\u3059\u3002TBW \u3084 DWPD \u306e\u30b9\u30da\u30c3\u30af\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u300c\u5b9f\u969b\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3067\u767a\u751f\u3057\u5f97\u308b\u5185\u90e8\u66f8\u304d\u8fbc\u307f\uff08GC \u3084\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3092\u542b\u3080\uff09\u3092\u7e54\u308a\u8fbc\u3093\u3060\u3046\u3048\u3067\u3001\u7d71\u8a08\u7684\u306b\u4fdd\u8a3c\u3067\u304d\u308b\u7bc4\u56f2\u300d\u3092\u793a\u3059\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u306f\u672c\u6765\u300c\u5bff\u547d\u3092\u524a\u3063\u3066\u3044\u308b\u300d\u306e\u3067\u306f\u306a\u304f\u3001\u300c\u5bff\u547d\u4fdd\u8a3c\u306e\u67a0\u5185\u3067\u3001\u30ea\u30b9\u30af\u3092\u524d\u5012\u3057\u3067\u51e6\u7406\u3057\u3066\u3044\u308b\u300d\u3068\u3044\u3046\u4f4d\u7f6e\u3065\u3051\u3067\u3059\u3002<\/p> <hr> <p>\u8a2d\u8a08\u30fb\u904b\u7528\u306e\u89b3\u70b9\u3067\u91cd\u8981\u306a\u306e\u306f\u3001<\/p> <ul> <li>\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u306f\u300c\u9577\u671f\u4fdd\u7ba1\u30c7\u30fc\u30bf\u300d\u3084\u300c\u8aad\u307f\u51fa\u3057\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u300d\u306b\u3068\u3063\u3066\u5fc5\u9808\u306e\u5b89\u5168\u5f01\u3067\u3042\u308b<\/li> <li>\u4e00\u65b9\u3067\u3001\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u306b\u306f I\/O \u5e2f\u57df\u30fb\u6d88\u8cbb\u96fb\u529b\u30fbP\/E \u30b5\u30a4\u30af\u30eb\u3068\u3044\u3063\u305f\u30b3\u30b9\u30c8\u3082\u4f34\u3046<\/li> <\/ul> <p>\u3068\u3044\u3046\u4e8c\u9762\u6027\u3067\u3059\u3002\u7279\u306b\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u3084\u5927\u898f\u6a21\u30b9\u30c8\u30ec\u30fc\u30b8\u74b0\u5883\u3067\u306f\u3001<\/p> <ul> <li>\u591c\u9593\u30d0\u30c3\u30c1\u306e\u88cf\u3067\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u304c\u8d70\u308a\u3001\u4e88\u60f3\u5916\u306e\u30ec\u30a4\u30c6\u30f3\u30b7\u30b9\u30d1\u30a4\u30af\u304c\u51fa\u308b<\/li> <li>\u7279\u5b9a\u30d9\u30f3\u30c0\u30fc\u30fb\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u306e\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u6319\u52d5\u304c\u3001\u5b9f\u904b\u7528\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3068\u76f8\u6027\u304c\u60aa\u3044<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u73fe\u8c61\u3082\u8d77\u3053\u308a\u5f97\u307e\u3059\u3002\u300c\u306a\u3093\u3068\u306a\u304f\u6700\u8fd1\u3053\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u306e tail latency \u304c\u60aa\u5316\u3057\u3066\u3044\u308b\u304c\u3001\u8ca0\u8377\u306f\u5897\u3048\u3066\u3044\u306a\u3044\u306f\u305a\u300d\u3068\u3044\u3046\u3068\u304d\u3001\u80cc\u5f8c\u3067\u306f\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u304c\u5fc5\u6b7b\u306b\u30c7\u30fc\u30bf\u4fdd\u6301\u3092\u652f\u3048\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <p>\u3053\u306e\u7ae0\u3067\u6e29\u3081\u3066\u304a\u304d\u305f\u3044\u4f0f\u7dda\u306f\u3001\u300c\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u306f\u3001\u7269\u7406\u73fe\u8c61\u3068\u5bff\u547d\u4fdd\u8a3c\u3068\u904b\u7528\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u306e\u3046\u3048\u306b\u6210\u308a\u7acb\u3064\u300d\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u6b21\u306e\u7ae0\u3067\u306f\u3001\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u8a2d\u8a08\u8005\u304c\u3069\u306e\u3088\u3046\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u898b\u306a\u304c\u3089\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u6226\u7565\u3092\u6c7a\u3081\u3066\u3044\u308b\u306e\u304b\u3001\u6e29\u5ea6\u30fb\u5bff\u547d\u30fb\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3068\u3044\u30463\u3064\u306e\u8ef8\u304b\u3089\u6574\u7406\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\r\n\r\n\r\n\r\n<a id=\"sec06\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u8a2d\u8a08\u8005\u306e\u8996\u70b9\u3067\u898b\u308b\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u6226\u7565\uff08\u6e29\u5ea6\u30fb\u5bff\u547d\u30fb\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\uff09<\/h2> <p>\u3053\u3053\u304b\u3089\u306f\u3001\u5c11\u3057\u8996\u70b9\u3092\u300cSSD \u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u8a2d\u8a08\u8005\u5074\u300d\u306b\u5bc4\u305b\u3066\u307f\u307e\u3059\u3002\u3082\u3057\u3042\u306a\u305f\u304c SSD \u30d9\u30f3\u30c0\u30fc\u306e FW \u30a8\u30f3\u30b8\u30cb\u30a2\u3060\u3068\u3057\u3066\u3001\u300c\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u306e\u30dd\u30ea\u30b7\u30fc\u3092\u6c7a\u3081\u3066\u304f\u3060\u3055\u3044\u300d\u3068\u8a00\u308f\u308c\u305f\u3089\u3001\u3069\u306e\u3088\u3046\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u898b\u3066\u8abf\u6574\u3059\u308b\u3067\u3057\u3087\u3046\u304b\u3002<\/p> <p>\u3056\u3063\u304f\u308a\u5206\u3051\u308b\u3068\u3001\u8a2d\u8a08\u6642\u306b\u91cd\u8981\u306b\u306a\u308b\u306e\u306f\u6b21\u306e3\u8ef8\u3067\u3059\u3002<\/p> <ul> <li>\u6e29\u5ea6\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\uff1a\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\uff0f\u30a8\u30c3\u30b8\uff0f\u8eca\u8f09\u306a\u3069\u3001\u60f3\u5b9a\u74b0\u5883\u306e\u6e29\u5ea6\u7bc4\u56f2<\/li> <li>\u5bff\u547d\u30bf\u30fc\u30b2\u30c3\u30c8\uff1aTBW \/ DWPD\u3001\u4fdd\u8a3c\u671f\u9593\u3001\u60f3\u5b9a P\/E \u30b5\u30a4\u30af\u30eb\u6570<\/li> <li>\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u7279\u6027\uff1a\u30e9\u30f3\u30c0\u30e0\uff0f\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u6bd4\u7387\u3001\u8aad\u307f\u66f8\u304d\u6bd4\u7387\u3001QoS \u8981\u4ef6<\/li> <\/ul> <p>\u6e29\u5ea6\u304c\u9ad8\u3044\u74b0\u5883\u3067\u306f\u30ea\u30c6\u30f3\u30b7\u30e7\u30f3\u52a3\u5316\u304c\u65e9\u304f\u9032\u3080\u305f\u3081\u3001\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u9593\u9694\u3092\u77ed\u304f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u5206\u3060\u3051 P\/E \u30b5\u30a4\u30af\u30eb\u6d88\u8cbb\u3068 I\/O \u5e2f\u57df\u6d88\u8cbb\u3082\u5897\u3048\u307e\u3059\u3002\u9006\u306b\u4f4e\u6e29\u30fb\u4f4e\u8ca0\u8377\u74b0\u5883\u306a\u3089\u3001\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u983b\u5ea6\u3092\u4e0b\u3052\u3066\u3082\u554f\u984c\u306b\u306a\u308a\u306b\u304f\u3044\u4e00\u65b9\u3001\u60f3\u5b9a\u5916\u306e\u9ad8\u6e29\u30a4\u30d9\u30f3\u30c8\uff08\u51b7\u5374\u30d5\u30a1\u30f3\u6545\u969c\u306a\u3069\uff09\u3078\u306e\u30de\u30fc\u30b8\u30f3\u3092\u3069\u3053\u3067\u78ba\u4fdd\u3059\u308b\u304b\u3001\u3068\u3044\u3063\u305f\u60a9\u307f\u304c\u51fa\u3066\u304d\u307e\u3059\u3002<\/p> <p>\u5bff\u547d\u30bf\u30fc\u30b2\u30c3\u30c8\u306e\u9762\u3067\u306f\u3001\u4f8b\u3048\u3070\u300c3 DWPD \/ 5 \u5e74\u4fdd\u8a3c\u300d\u306e SSD \u3068\u300c0.3 DWPD \/ 5 \u5e74\u4fdd\u8a3c\u300d\u306e SSD \u3067\u306f\u3001\u540c\u3058 NAND \u4e16\u4ee3\u3067\u3042\u3063\u3066\u3082\u5185\u90e8\u30dd\u30ea\u30b7\u30fc\u304c\u5927\u304d\u304f\u7570\u306a\u308a\u307e\u3059\u3002\u9ad8\u8010\u4e45\u30e2\u30c7\u30eb\u306f P\/E \u30b5\u30a4\u30af\u30eb\u306e\u4e88\u7b97\u304c\u5927\u304d\u3044\u305f\u3081\u3001\u300c\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3092\u7a4d\u6975\u7684\u306b\u56de\u3057\u3066\u30ea\u30b9\u30af\u3092\u6f70\u3059\u300d\u8a2d\u8a08\u3092\u53d6\u308a\u3084\u3059\u304f\u3001\u9006\u306b\u4f4e\u8010\u4e45\u30e2\u30c7\u30eb\u306f\u300c\u7121\u95c7\u306a\u66f8\u304d\u63db\u3048\u306f\u907f\u3051\u3064\u3064\u3001\u5fc5\u8981\u6700\u4f4e\u9650\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u3060\u3051\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3059\u308b\u300d\u3068\u3044\u3063\u305f\u614e\u91cd\u306a\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p> <hr> <p>\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u7279\u6027\u306b\u95a2\u3057\u3066\u306f\u3001\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u5411\u3051\u88fd\u54c1\u307b\u3069\u3001\u300c\u5b9f\u969b\u306b\u3069\u3046\u4f7f\u308f\u308c\u308b\u304b\u300d\u3092\u524d\u63d0\u306b\u3057\u305f\u6700\u9069\u5316\u304c\u9032\u3093\u3067\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001<\/p> <ul> <li>OLTP \u7cfb\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\uff1a\u5c0f\u3055\u306a\u30e9\u30f3\u30c0\u30e0\u66f8\u304d\u8fbc\u307f\u3068\u8aad\u307f\u51fa\u3057\u304c\u6df7\u5728\u3057\u3001\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u304c\u751f\u307e\u308c\u3084\u3059\u3044<\/li> <li>\u30ed\u30b0\u30fb\u30e1\u30c8\u30ea\u30af\u30b9\u7cfb\uff1a\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u66f8\u304d\u8fbc\u307f\u304c\u4e2d\u5fc3\u3060\u304c\u3001\u8aad\u307f\u51fa\u3057\u306f\u65b0\u3057\u3044\u90e8\u5206\u306b\u504f\u308b<\/li> <li>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\uff0f\u30a2\u30fc\u30ab\u30a4\u30d6\uff1a\u66f8\u304d\u8fbc\u307f\u306f\u4e00\u62ec\u3001\u4ee5\u964d\u306f\u307b\u307c\u30ea\u30fc\u30c9\u30aa\u30f3\u30ea\u30fc<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u9055\u3044\u306b\u5408\u308f\u305b\u3066\u3001\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u5bfe\u8c61\u306e\u512a\u5148\u9806\u4f4d\u3084\u30b9\u30b1\u30b8\u30e5\u30fc\u30ea\u30f3\u30b0\u65b9\u6cd5\u3092\u5909\u3048\u308b\u3053\u3068\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u3002QoS \u8981\u4ef6\u304c\u53b3\u3057\u3044\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u300c\u30db\u30b9\u30c8 I\/O \u306e\u30ec\u30a4\u30c6\u30f3\u30b7\u306b\u5f71\u97ff\u3057\u306a\u3044\u6642\u9593\u5e2f\uff08\u3042\u308b\u3044\u306f\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u30b9\u30ec\u30c3\u30c9\u306e\u5e2f\u57df\u4e0a\u9650\uff09\u300d\u3092\u614e\u91cd\u306b\u8a2d\u8a08\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <p>\u3068\u306f\u3044\u3048\u3001\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u30ec\u30d9\u30eb\u3067\u6271\u3048\u308b\u60c5\u5831\u306b\u306f\u9650\u754c\u304c\u3042\u308a\u307e\u3059\u3002\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u300c\u3069\u306e LBA \u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u4e0a\u3067\u3069\u306e\u30c6\u30fc\u30d6\u30eb\u30fb\u3069\u306e\u6a5f\u80fd\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b\u300d\u307e\u3067\u306f\u77e5\u308a\u307e\u305b\u3093\u3057\u3001\u300c\u3053\u306e\u671f\u9593\u306f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30a6\u30a3\u30f3\u30c9\u30a6\u3060\u304b\u3089\u591a\u5c11\u9045\u304f\u306a\u3063\u3066\u3082\u69cb\u308f\u306a\u3044\u300d\u3068\u3044\u3063\u305f\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3082\u5206\u304b\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u6700\u7d42\u7684\u306b\u306f\u300c\u7d71\u8a08\u7684\u306b\u591a\u304f\u306e\u30e6\u30fc\u30b6\u306b\u3068\u3063\u3066\u7121\u96e3\u306a\u30dd\u30ea\u30b7\u30fc\u300d\u306b\u843d\u3068\u3057\u8fbc\u307e\u3056\u308b\u3092\u5f97\u307e\u305b\u3093\u3002<\/p> <p>\u3053\u3053\u306b\u3001\u5f8c\u534a\u3067\u6271\u3046\u300c\u4e00\u822c\u8ad6\u306e\u9650\u754c\u300d\u306e\u5f71\u304c\u3046\u3063\u3059\u3089\u3068\u898b\u3048\u3066\u304d\u307e\u3059\u3002\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u5074\u306f\u591a\u6570\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u3068\u3063\u3066\u5b89\u5168\u306a\u30e9\u30a4\u30f3\u3092\u5f15\u3044\u3066\u304f\u308c\u307e\u3059\u304c\u3001<\/p> <ul> <li>\u7279\u5b9a\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306b\u6975\u7aef\u306b\u504f\u3063\u305f\u4f7f\u3044\u65b9<\/li> <li>\u9ad8\u6e29\uff0f\u632f\u52d5\u306a\u3069\u3001\u4ed5\u69d8\u30ae\u30ea\u30ae\u30ea\u306e\u7269\u7406\u74b0\u5883<\/li> <li>\u9577\u671f\u4fdd\u5b58\u3068\u5e38\u6642\u7a3c\u50cd\u304c\u6df7\u5728\u3059\u308b\u3088\u3046\u306a\u8907\u96d1\u306a\u30b7\u30b9\u30c6\u30e0\u69cb\u6210<\/li> <\/ul> <p>\u3067\u306f\u3001\u300c\u6a19\u6e96\u30dd\u30ea\u30b7\u30fc\u3067\u306f\u8db3\u308a\u306a\u3044\u300d\u30b1\u30fc\u30b9\u304c\u3069\u3046\u3057\u3066\u3082\u51fa\u3066\u304d\u307e\u3059\u3002\u3053\u306e\u30ae\u30e3\u30c3\u30d7\u3092\u57cb\u3081\u308b\u306e\u304c\u3001\u5f8c\u534a\u3067\u53d6\u308a\u4e0a\u3052\u308b\u300c\u904b\u7528\u8a2d\u8a08\u300d\u3068\u300c\u5c02\u9580\u5bb6\u306b\u3088\u308b\u500b\u5225\u306e\u30a2\u30bb\u30b9\u30e1\u30f3\u30c8\u300d\u3067\u3059\u3002\u6b21\u7ae0\u3067\u306f\u3001\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba SSD \u304c\u3069\u306e\u3088\u3046\u306a\u300c\u9759\u304b\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u300d\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308b\u306e\u304b\u3001\u305d\u306e\u5177\u4f53\u4f8b\u3068\u9650\u754c\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\r\n\r\n\r\n\r\n<a id=\"sec07\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30baSSD\u304c\u5b9f\u88c5\u3057\u3066\u3044\u308b\u201c\u9759\u304b\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u201d\u3068\u305d\u306e\u9650\u754c<\/h2> <p>\u3053\u3053\u307e\u3067\u898b\u3066\u304d\u305f\u3088\u3046\u306a\u30ea\u30c6\u30f3\u30b7\u30e7\u30f3\u52a3\u5316\u3084\u30ea\u30fc\u30c9\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6\u3001\u30db\u30c3\u30c8\u30bb\u30eb\u554f\u984c\u306b\u5bfe\u3057\u3066\u3001\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u5411\u3051 SSD \u306f\u3055\u307e\u3056\u307e\u306a\u300c\u9759\u304b\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u300d\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002\u591a\u304f\u306e\u5834\u5408\u3001\u305d\u308c\u306f\u30db\u30b9\u30c8 OS \u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089\u306f\u610f\u8b58\u3055\u308c\u308b\u3053\u3068\u306a\u304f\u3001\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u3067\u6de1\u3005\u3068\u52d5\u3044\u3066\u3044\u307e\u3059\u3002<\/p> <p>\u4ee3\u8868\u7684\u306a\u3082\u306e\u3092\u3044\u304f\u3064\u304b\u6319\u3052\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306a\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <ul> <li>\u30d1\u30c8\u30ed\u30fc\u30eb\u30ea\u30fc\u30c9\uff08patrol read\uff09\uff0f\u30b9\u30af\u30e9\u30d3\u30f3\u30b0\uff1a\u30a2\u30a4\u30c9\u30eb\u6642\u9593\u306b\u5168\u30d6\u30ed\u30c3\u30af\u3092\u9806\u756a\u306b\u8aad\u307f\u51fa\u3057\u3001\u30a8\u30e9\u30fc\u304c\u5897\u3048\u3066\u3044\u308b\u30d6\u30ed\u30c3\u30af\u3092\u691c\u77e5\u3057\u3066\u518d\u914d\u7f6e\u3059\u308b<\/li> <li>\u52d5\u7684\u3057\u304d\u3044\u5024\u8abf\u6574\uff1a\u6e29\u5ea6\u30fb\u7d4c\u5e74\u30fb\u30a8\u30e9\u30fc\u7d71\u8a08\u306b\u5fdc\u3058\u3066\u30ea\u30fc\u30c9\u6642\u306e\u53c2\u7167\u96fb\u5727\u3092\u6700\u9069\u5316\u3057\u3001ECC \u306e\u8ca0\u62c5\u3092\u6e1b\u3089\u3059<\/li> <li>\u30a2\u30b0\u30ec\u30c3\u30b7\u30d6\u30a6\u30a7\u30a2\u30ec\u30d9\u30ea\u30f3\u30b0\uff1a\u7279\u5b9a\u9818\u57df\u3078\u306e P\/E \u504f\u308a\u3092\u691c\u77e5\u3057\u305f\u3089\u3001\u7a4d\u6975\u7684\u306b\u30c7\u30fc\u30bf\u3092\u5747\u7b49\u5316\u3059\u308b<\/li> <li>\u6e29\u5ea6\u5236\u5fa1\u306b\u57fa\u3065\u304f\u6319\u52d5\u5909\u66f4\uff1a\u6e29\u5ea6\u304c\u9ad8\u3044\u3068\u304d\u306f\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u983b\u5ea6\u3092\u4e0a\u3052\u308b\uff0f\u66f8\u304d\u8fbc\u307f\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3092\u6291\u5236\u3059\u308b\u306a\u3069<\/li> <\/ul> <p>\u3053\u308c\u3089\u306f\u30d9\u30f3\u30c0\u30fc\u3084\u88fd\u54c1\u30b7\u30ea\u30fc\u30ba\u3054\u3068\u306b\u540d\u79f0\u3084\u5b9f\u88c5\u306f\u7570\u306a\u308a\u307e\u3059\u304c\u3001\u672c\u8cea\u7684\u306b\u306f\u300c\u30bb\u30eb\u306e\u72b6\u614b\u3092\u76e3\u8996\u3057\u3001\u3057\u304d\u3044\u5024\u3092\u8d85\u3048\u308b\u524d\u306b\u624b\u3092\u6253\u3064\u300d\u3068\u3044\u3046\u601d\u60f3\u3067\u7d71\u4e00\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3044\u308f\u3070\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u81ea\u8eab\u304c\u300c\u30df\u30cb SRE\u300d\u3068\u3057\u3066\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u30c7\u30d0\u30a4\u30b9\u5185\u90e8\u306e SLO \u3092\u5b88\u308b\u305f\u3081\u306b 24 \u6642\u9593\u4f53\u5236\u3067\u50cd\u3044\u3066\u3044\u308b\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<\/p> <p>\u305f\u3060\u3057\u3001\u3053\u306e\u9759\u304b\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306b\u3082\u660e\u78ba\u306a\u9650\u754c\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <hr> <p>\u7b2c1\u306e\u9650\u754c\u306f\u3001\u300c\u89b3\u6e2c\u3067\u304d\u308b\u60c5\u5831\u306e\u7c92\u5ea6\u300d\u3067\u3059\u3002\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304c\u76f4\u63a5\u898b\u3066\u3044\u308b\u306e\u306f\u3001\u3042\u304f\u307e\u3067\u30bb\u30eb\u30ec\u30d9\u30eb\u30fb\u30d6\u30ed\u30c3\u30af\u30ec\u30d9\u30eb\u306e\u30a8\u30e9\u30fc\u7d71\u8a08\u3084\u6e29\u5ea6\u30bb\u30f3\u30b5\u306e\u5024\u3067\u3042\u308a\u3001\u4e0a\u4f4d\u30ec\u30a4\u30e4\u30fc\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u69cb\u9020\u307e\u3067\u306f\u5206\u304b\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001<\/p> <ul> <li>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u7684\u306b\u300c\u3053\u3053\u3060\u3051\u306f\u7d76\u5bfe\u306b\u58ca\u308c\u3066\u307b\u3057\u304f\u306a\u3044\u300d\u9818\u57df<\/li> <li>\u9006\u306b\u300c\u58ca\u308c\u3066\u3082\u518d\u751f\u6210\u3067\u304d\u308b\u4e00\u6642\u30c7\u30fc\u30bf\u300d\u9818\u57df<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u512a\u5148\u9806\u4f4d\u3092\u7406\u89e3\u3057\u305f\u4e0a\u3067\u52d5\u304f\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u3059\u3079\u3066\u306e\u30d6\u30ed\u30c3\u30af\u3092\u300c\u7b49\u3057\u304f\u91cd\u8981\u300d\u3068\u898b\u306a\u3057\u305f\u3046\u3048\u3067\u3001\u7d71\u8a08\u7684\u306b\u5b89\u5168\u306a\u30e9\u30a4\u30f3\u3092\u5b88\u308b\u3001\u3068\u3044\u3046\u632f\u308b\u821e\u3044\u306b\u3068\u3069\u307e\u308a\u307e\u3059\u3002<\/p> <p>\u7b2c2\u306e\u9650\u754c\u306f\u3001\u300cSAS\/SATA\/NVMe \u306e\u6a19\u6e96\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u8d8a\u3057\u306b\u3057\u304b\u60c5\u5831\u3092\u51fa\u305b\u306a\u3044\u300d\u3068\u3044\u3046\u70b9\u3067\u3059\u3002SMART \u5c5e\u6027\u3084 NVMe \u30ed\u30b0\u306a\u3069\u3001\u5916\u90e8\u306b\u63d0\u4f9b\u3055\u308c\u308b\u60c5\u5831\u306f\u6a19\u6e96\u4ed5\u69d8\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u7bc4\u56f2\u306b\u5236\u7d04\u3055\u308c\u307e\u3059\u3002\u30d9\u30f3\u30c0\u30fc\u56fa\u6709\u306e\u8a73\u7d30\u7d71\u8a08\u304c\u63d0\u4f9b\u3055\u308c\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u308c\u3092\u3069\u3053\u307e\u3067\u53ce\u96c6\u30fb\u76e3\u8996\u30fb\u53ef\u8996\u5316\u3059\u308b\u304b\u306f\u3001\u30db\u30b9\u30c8\u5074\uff08\u30b9\u30c8\u30ec\u30fc\u30b8\u7ba1\u7406\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3084\u76e3\u8996\u57fa\u76e4\uff09\u306e\u8a2d\u8a08\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002<\/p> <p>\u7b2c3\u306e\u9650\u754c\u306f\u3001\u300c\u8907\u6570\u30d9\u30f3\u30c0\u30fc\uff0f\u8907\u6570\u4e16\u4ee3\u304c\u6df7\u5728\u3059\u308b\u73fe\u5834\u3067\u306f\u3001\u6319\u52d5\u306e\u5dee\u5206\u304c\u8aad\u307f\u306b\u304f\u3044\u300d\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u3084\u30aa\u30f3\u30d7\u30ec\u74b0\u5883\u3067\u306f\u3001<\/p> <ul> <li>\u7570\u306a\u308b\u30d9\u30f3\u30c0\u30fc\u306e SSD \u304c\u540c\u3058\u30b9\u30c8\u30ec\u30fc\u30b8\u30d7\u30fc\u30eb\u306b\u6df7\u5728\u3057\u3066\u3044\u308b<\/li> <li>\u540c\u3058\u30d9\u30f3\u30c0\u30fc\u3067\u3082\u3001\u4e16\u4ee3\u306e\u9055\u3046\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\uff0fNAND \u3092\u642d\u8f09\u3057\u305f\u30e2\u30c7\u30eb\u304c\u6df7\u5728\u3057\u3066\u3044\u308b<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u69cb\u6210\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u300c\u3069\u306e\u30e2\u30c7\u30eb\u304c\u3069\u306e\u3088\u3046\u306a\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u30dd\u30ea\u30b7\u30fc\u3067\u52d5\u3044\u3066\u3044\u308b\u306e\u304b\u300d\u300c\u6e29\u5ea6\u6761\u4ef6\u3084\u8ca0\u8377\u6761\u4ef6\u304c\u9055\u3046\u3068\u304d\u306b\u3001\u3069\u3093\u306a\u30d1\u30bf\u30fc\u30f3\u3067\u30ec\u30a4\u30c6\u30f3\u30b7\u3084\u30a8\u30e9\u30fc\u304c\u51fa\u3084\u3059\u3044\u306e\u304b\u300d\u3092\u3001\u904b\u7528\u5074\u3067\u628a\u63e1\u3057\u304d\u308c\u3066\u3044\u306a\u3044\u30b1\u30fc\u30b9\u304c\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/p> <p>\u7d50\u679c\u3068\u3057\u3066\u3001\u300c\u306a\u3093\u3068\u306a\u304f\u3053\u306e\u30e9\u30c3\u30af\u3060\u3051 I\/O \u304c\u8352\u308c\u3066\u3044\u308b\u300d\u300c\u3053\u306e\u4e16\u4ee3\u306e SSD \u3060\u3051 SMART \u306e\u3057\u304d\u3044\u5024\u306b\u983b\u7e41\u306b\u8fd1\u3065\u304f\u300d\u3068\u3044\u3063\u305f\u201c\u73fe\u5834\u306e\u30e2\u30e4\u30e2\u30e4\u201d\u304c\u751f\u307e\u308c\u304c\u3061\u3067\u3059\u3002\u3053\u3053\u304b\u3089\u5148\u3092\u3001\u5358\u306a\u308b\u300c\u500b\u3005\u306e\u30c9\u30e9\u30a4\u30d6\u4e0d\u826f\u300d\u3068\u3057\u3066\u7247\u3065\u3051\u308b\u306e\u304b\u3001SSD \u4e16\u4ee3\u30fb\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u30fb\u7b50\u4f53\u8a2d\u8a08\u30fb\u51b7\u5374\u8a2d\u8a08\u30fb\u4fdd\u5b88\u5951\u7d04\u307e\u3067\u542b\u3081\u305f\u5168\u4f53\u8a2d\u8a08\u306e\u898b\u76f4\u3057\u306b\u3064\u306a\u3052\u308b\u306e\u304b\u2015\u2015\u3053\u306e\u5206\u5c90\u304c\u3001\u9577\u671f\u7684\u306a\u969c\u5bb3\u30ea\u30b9\u30af\u3068\u30b3\u30b9\u30c8\u306b\u5927\u304d\u304f\u97ff\u3044\u3066\u304d\u307e\u3059\u3002<\/p> <p>\u6b21\u7ae0\u3067\u306f\u3001\u3053\u306e\u300c\u9759\u304b\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u300d\u304c\u9593\u306b\u5408\u308f\u306a\u304b\u3063\u305f\u3068\u304d\u3001\u30c7\u30fc\u30bf\u5fa9\u65e7\u73fe\u5834\u304b\u3089\u306f\u4f55\u304c\u898b\u3048\u308b\u306e\u304b\u3001\u5b9f\u969b\u306b\u3042\u308a\u304c\u3061\u306a\u75c7\u72b6\u3068\u5171\u306b\u6574\u7406\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\r\n\r\n\r\n\r\n<a id=\"sec08\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u304c\u9593\u306b\u5408\u308f\u306a\u304b\u3063\u305f\u3068\u304d\u306b\u4f55\u304c\u8d77\u304d\u308b\u304b\uff1a\u30c7\u30fc\u30bf\u5fa9\u65e7\u73fe\u5834\u304b\u3089\u898b\u305f\u75c7\u72b6<\/h2> <p>\u3067\u306f\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3084\u30d1\u30c8\u30ed\u30fc\u30eb\u30ea\u30fc\u30c9\u3068\u3044\u3063\u305f\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u3001\u7269\u7406\u7684\u306a\u52a3\u5316\u30b9\u30d4\u30fc\u30c9\u306b\u8ffd\u3044\u3064\u304b\u306a\u304f\u306a\u3063\u305f\u3068\u304d\u3001\u73fe\u5834\u3067\u306f\u3069\u306e\u3088\u3046\u306a\u5f62\u3067\u554f\u984c\u304c\u9855\u5728\u5316\u3059\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u3053\u3067\u306f\u3001\u30c7\u30fc\u30bf\u5fa9\u65e7\u306e\u4f9d\u983c\u3068\u3057\u3066\u5b9f\u969b\u306b\u591a\u3044\u30d1\u30bf\u30fc\u30f3\u3092\u62bd\u8c61\u5316\u3057\u3001\u5178\u578b\u7684\u306a\u75c7\u72b6\u3068\u305d\u306e\u88cf\u5074\u306b\u3042\u308b\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u7d10\u3065\u3051\u3066\u307f\u307e\u3059\u3002<\/p> <p>\u3088\u304f\u898b\u3089\u308c\u308b\u8868\u306e\u75c7\u72b6\u3068\u3057\u3066\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <ul> <li>OS \u30ec\u30d9\u30eb\u3067\u7a81\u7136\u306e I\/O \u30a8\u30e9\u30fc\uff08\u8aad\u307f\u51fa\u3057\u5931\u6557\uff0f\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\uff09\u304c\u5897\u3048\u308b<\/li> <li>\u7279\u5b9a\u306e\u30d5\u30a1\u30a4\u30eb\u3084\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3060\u3051\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u56fa\u307e\u308b\uff0f\u30a8\u30e9\u30fc\u306b\u306a\u308b<\/li> <li>\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u30c1\u30a7\u30c3\u30af\u3067\u5927\u91cf\u306e\u4e0d\u6574\u5408\u304c\u691c\u51fa\u3055\u308c\u308b<\/li> <li>RAID \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304c\u7279\u5b9a\u30c9\u30e9\u30a4\u30d6\u3092\u300c\u6545\u969c\u300d\u3068\u5224\u5b9a\u3057\u3066\u5207\u308a\u96e2\u3059<\/li> <\/ul> <p>\u4e00\u898b\u3001\u3069\u308c\u3082\u300cSSD \u304c\u58ca\u308c\u305f\u300d\u3068\u3044\u3046\u4e00\u8a00\u3067\u7247\u3065\u3051\u3089\u308c\u304c\u3061\u306a\u75c7\u72b6\u3067\u3059\u304c\u3001\u5185\u90e8\u3067\u8d77\u304d\u3066\u3044\u308b\u3053\u3068\u306f\u3082\u3046\u5c11\u3057\u591a\u5c64\u7684\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u300c\u7279\u5b9a\u306e LBA \u7bc4\u56f2\u3060\u3051\u8aad\u307f\u51fa\u3057\u306b\u7570\u5e38\u306b\u6642\u9593\u304c\u304b\u304b\u308b\u300d\u5834\u5408\u3001<\/p> <ul> <li>\u305d\u306e\u30d6\u30ed\u30c3\u30af\u306b\u5bfe\u3059\u308b ECC \u8a02\u6b63\u304c\u9650\u754c\u8fd1\u304f\u307e\u3067\u5897\u3048\u3066\u304a\u308a\u3001\u518d\u8aad\u307f\u51fa\u3057\u30fb\u3057\u304d\u3044\u5024\u8abf\u6574\u3092\u7e70\u308a\u8fd4\u3057\u3066\u3044\u308b<\/li> <li>\u30ea\u30fc\u30c9\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6\u304c\u9032\u884c\u3057\u3001\u540c\u4e00\u30d6\u30ed\u30c3\u30af\u5185\u306e\u4e00\u90e8\u30da\u30fc\u30b8\u304c\u4e0d\u5b89\u5b9a\u306b\u306a\u3063\u3066\u3044\u308b<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u72b6\u6cc1\u304c\u63a8\u6e2c\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u6bb5\u968e\u3067\u306f\u3001\u307e\u3060 ECC \u306b\u3088\u308b\u8a02\u6b63\u304c\u9593\u306b\u5408\u3063\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308a\u3001OS \u306e\u30ed\u30b0\u306b\u306f\u660e\u78ba\u306a\u30a8\u30e9\u30fc\u3068\u3057\u3066\u51fa\u3066\u3053\u306a\u3044\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u300c\u306a\u3093\u3068\u306a\u304f\u9045\u3044\u300d\u300c\u305f\u307e\u306b\u56fa\u307e\u308b\u300d\u3068\u3044\u3063\u305f\u611f\u899a\u7684\u306a\u5146\u5019\u3060\u3051\u304c\u5148\u306b\u73fe\u308c\u308b\u30b1\u30fc\u30b9\u3082\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/p> <hr> <p>\u3088\u308a\u6df1\u523b\u306a\u6bb5\u968e\u3067\u306f\u3001ECC \u304c\u8a02\u6b63\u53ef\u80fd\u306a\u7bc4\u56f2\u3092\u8d85\u3048\u3066\u3057\u307e\u3044\u3001\u300c\u30c7\u30fc\u30bf\u3068\u3057\u3066\u6574\u5408\u6027\u306e\u53d6\u308c\u306a\u3044\u30d3\u30c3\u30c8\u5217\u300d\u304c\u8fd4\u3063\u3066\u304f\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u4e0a\u4f4d\u30ec\u30a4\u30e4\u30fc\u3067\u306f\u6b21\u306e\u3088\u3046\u306a\u6319\u52d5\u304c\u898b\u3089\u308c\u307e\u3059\u3002<\/p> <ul> <li>\u30e1\u30bf\u30c7\u30fc\u30bf\u306e\u4e00\u90e8\u304c\u7834\u640d\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u304c\u6574\u5408\u6027\u30a8\u30e9\u30fc\u3092\u691c\u51fa\u3059\u308b<\/li> <li>RAID \u306e\u30d1\u30ea\u30c6\u30a3\u8a08\u7b97\u304c\u5408\u308f\u306a\u304f\u306a\u308a\u3001\u300c\u4fee\u5fa9\u4e0d\u80fd\u306a\u30a8\u30e9\u30fc\u300d\u3068\u3057\u3066\u6271\u308f\u308c\u308b<\/li> <li>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30da\u30fc\u30b8\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u304c\u4e00\u81f4\u305b\u305a\u3001\u8a72\u5f53\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u3081\u306a\u3044<\/li> <\/ul> <p>\u3053\u3053\u307e\u3067\u9032\u3080\u3068\u3001\u30c7\u30fc\u30bf\u5fa9\u65e7\u306e\u96e3\u6613\u5ea6\u306f\u4e00\u6c17\u306b\u4e0a\u304c\u308a\u307e\u3059\u3002\u30bb\u30eb\u306e\u7269\u7406\u72b6\u614b\u3092\u76f4\u63a5\u8aad\u3080\u5c02\u7528\u88c5\u7f6e\u3092\u4f7f\u3063\u3066\u3082\u3001\u300c\u30d1\u30ea\u30c6\u30a3\u3084 ECC \u306e\u88dc\u52a9\u3092\u4f7f\u3063\u3066\u8ad6\u7406\u7684\u306b\u5fa9\u5143\u3059\u308b\u300d\u3068\u3044\u3046\u4f59\u5730\u304c\u5c0f\u3055\u304f\u306a\u308a\u3001\u7d71\u8a08\u7684\u624b\u6cd5\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u306e\u5197\u9577\u6027\u306b\u983c\u3089\u3056\u308b\u3092\u5f97\u306a\u3044\u30b1\u30fc\u30b9\u304c\u5897\u3048\u307e\u3059\u3002<\/p> <p>\u3055\u3089\u306b\u5384\u4ecb\u306a\u306e\u306f\u3001\u300c\u58ca\u308c\u3066\u3044\u308b\u306e\u304c\u30e6\u30fc\u30b6\u30fc\u30c7\u30fc\u30bf\u3067\u306f\u306a\u304f\u3001\u5185\u90e8\u30e1\u30bf\u30c7\u30fc\u30bf\u5074\u300d\u3068\u3044\u3046\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002FTL \u306e\u30c6\u30fc\u30d6\u30eb\u3084\u30d6\u30ed\u30c3\u30af\u7ba1\u7406\u60c5\u5831\u306b\u30a8\u30e9\u30fc\u304c\u51fa\u308b\u3068\u3001<\/p> <ul> <li>\u7279\u5b9a\u306e LBA \u7bc4\u56f2\u304c\u5225\u306e\u7269\u7406\u30d6\u30ed\u30c3\u30af\u306b\u8aa4\u3063\u3066\u30de\u30c3\u30d7\u3055\u308c\u308b<\/li> <li>\u672c\u6765\u5b58\u5728\u3057\u305f\u30c7\u30fc\u30bf\u30d6\u30ed\u30c3\u30af\u3078\u306e\u53c2\u7167\u304c\u5931\u308f\u308c\u308b<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u8ad6\u7406\u7684\u7834\u7dbb\u3092\u5f15\u304d\u8d77\u3053\u3057\u3001\u5fa9\u65e7\u5074\u3068\u3057\u3066\u3082\u300c\u3069\u306e LBA \u304c\u3069\u306e\u7269\u7406\u30d6\u30ed\u30c3\u30af\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u305f\u306e\u304b\u300d\u3092\u63a8\u5b9a\u3059\u308b\u4f5c\u696d\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u30ed\u30b0\u3084\u6b8b\u5b58\u30e1\u30bf\u30c7\u30fc\u30bf\u3001RAID \u914d\u7f6e\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u306a\u3069\u3092\u7dcf\u52d5\u54e1\u3057\u305f\u89e3\u6790\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p> <p>\u8aad\u8005\u306e\u611f\u899a\u3068\u3057\u3066\u306f\u3001\u300c\u305d\u3053\u307e\u3067\u884c\u3063\u305f\u3089\u3082\u3046\u30a2\u30a6\u30c8\u3067\u306f\uff1f\u300d\u3068\u611f\u3058\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u5b9f\u969b\u3001\u5b8c\u5168\u306a\u56de\u5fa9\u304c\u96e3\u3057\u3044\u30b1\u30fc\u30b9\u3082\u5b58\u5728\u3057\u307e\u3059\u3002\u305f\u3060\u3001\u30c7\u30fc\u30bf\u5fa9\u65e7\u73fe\u5834\u306e\u7d4c\u9a13\u5247\u3068\u3057\u3066\u3001<\/p> <ul> <li>\u30a8\u30e9\u30fc\u306e\u521d\u671f\u5146\u5019\u3092\u3069\u306e\u6642\u70b9\u3067\u3069\u308c\u3060\u3051\u53d6\u5f97\u3057\u3066\u3044\u308b\u304b<\/li> <li>RAID \u3084\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306a\u3069\u3001\u4e0a\u4f4d\u30ec\u30a4\u30e4\u30fc\u306e\u5197\u9577\u6027\u304c\u3069\u306e\u7a0b\u5ea6\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u304b<\/li> <li>\u969c\u5bb3\u767a\u751f\u5f8c\u306b\u3001\u3069\u306e\u3088\u3046\u306a\u64cd\u4f5c\uff08\u518d\u8d77\u52d5\u30fb\u518d\u540c\u671f\u30fb\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u4fee\u5fa9\u306a\u3069\uff09\u3092\u884c\u3063\u305f\u304b<\/li> <\/ul> <p>\u306b\u3088\u3063\u3066\u3001\u300c\u53d6\u308a\u623b\u305b\u308b\u7bc4\u56f2\u300d\u306f\u5927\u304d\u304f\u5909\u308f\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u304c\u9593\u306b\u5408\u308f\u306a\u304b\u3063\u305f\u77ac\u9593\u304c\u5b8c\u5168\u306a\u7d42\u308f\u308a\u3067\u306f\u306a\u304f\u3001\u305d\u306e\u5f8c\u306e\u5bfe\u5fdc\u306b\u3088\u3063\u3066\u300c\u3069\u3053\u307e\u3067\u623b\u305b\u308b\u304b\u300d\u3092\u5de6\u53f3\u3067\u304d\u308b\u4f59\u5730\u304c\u3042\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p> <p>\u6b21\u7ae0\u3067\u306f\u3001\u3053\u306e\u4f59\u5730\u3092\u6700\u5927\u9650\u306b\u6d3b\u304b\u3059\u305f\u3081\u306b\u3001\u904b\u7528\u5074\u3067\u3042\u3089\u304b\u3058\u3081\u8a2d\u8a08\u3057\u3066\u304a\u3051\u308b\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u88dc\u5b8c\u7b56\u2015\u2015\u30db\u30b9\u30c8\u5074\u306e\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u30b9\u30ad\u30e3\u30f3\u3084\u30c7\u30fc\u30bf\u518d\u914d\u7f6e\u6226\u7565\u306b\u3064\u3044\u3066\u8003\u3048\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\r\n\r\n\r\n<a id=\"sec09\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u904b\u7528\u3067\u3067\u304d\u308b\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u88dc\u5b8c\u7b56\uff1a\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u30b9\u30ad\u30e3\u30f3\u3068\u518d\u914d\u7f6e\u8a2d\u8a08<\/h2> <p>\u3053\u3053\u307e\u3067\u898b\u3066\u304d\u305f\u3068\u304a\u308a\u3001SSD \u5358\u4f53\u306e\u4e2d\u3067\u306f\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304c\u304b\u306a\u308a\u9811\u5f35\u3063\u3066\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3084\u30a8\u30e9\u30fc\u8a02\u6b63\u3092\u884c\u3063\u3066\u304f\u308c\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u300c\u305d\u308c\u3060\u3051\u306b\u4efb\u305b\u3066\u304a\u3051\u3070\u5341\u5206\u300d\u3068\u8a00\u3044\u5207\u308c\u308b\u307b\u3069\u5358\u7d14\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u3053\u304b\u3089\u306f\u3001\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3084\u904b\u7528\u8a2d\u8a08\u306e\u5074\u3067\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u306e\u8003\u3048\u65b9\u3092\u3069\u3046\u88dc\u5b8c\u3067\u304d\u308b\u304b\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p> <p>\u307e\u305a\u91cd\u8981\u306a\u306e\u306f\u3001\u300c\u30db\u30b9\u30c8\u5074\u3067\u306e\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u30b9\u30ad\u30e3\u30f3\u300d\u3067\u3059\u3002\u4ee3\u8868\u7684\u306a\u4f8b\u3068\u3057\u3066\u3001<\/p> <ul> <li>ZFS \u3084 Btrfs \u306e scrub \u6a5f\u80fd\uff1a\u5168\u30c7\u30fc\u30bf\u3092\u5b9a\u671f\u7684\u306b\u8aad\u307f\u51fa\u3057\u3066\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3092\u691c\u8a3c\u3057\u3001\u58ca\u308c\u305f\u30d6\u30ed\u30c3\u30af\u3092\u5197\u9577\u30b3\u30d4\u30fc\u304b\u3089\u81ea\u52d5\u4fee\u5fa9\u3059\u308b<\/li> <li>RAID \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306e patrol read\uff1a\u30a2\u30a4\u30c9\u30eb\u6642\u9593\u306b\u5168\u30bb\u30af\u30bf\u3092\u8aad\u307f\u51fa\u3057\u3066\u30a8\u30e9\u30fc\u3092\u65e9\u671f\u691c\u77e5\u3059\u308b<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3001\u30db\u30b9\u30c8\u30ec\u30d9\u30eb\u3067\u306e\u300c\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u7684\u306a\u52d5\u304d\u300d\u3068\u6349\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002SSD \u5185\u90e8\u306e\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3068\u7570\u306a\u308a\u3001<\/p> <ul> <li>\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3084 RAID \u30d1\u30ea\u30c6\u30a3\u306a\u3069\u3001\u4e0a\u4f4d\u30ec\u30a4\u30e4\u30fc\u306e\u77e5\u8b58\u3092\u4f7f\u3063\u305f\u691c\u8a3c\u304c\u3067\u304d\u308b<\/li> <li>\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3084\u5b9f\u884c\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u3001\u30d3\u30b8\u30cd\u30b9\u5074\u306e\u90fd\u5408\u306b\u5408\u308f\u305b\u3066\u8abf\u6574\u3067\u304d\u308b<\/li> <\/ul> <p>\u3068\u3044\u3046\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <hr> <p>\u6b21\u306b\u3001\u300c\u30c7\u30fc\u30bf\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306b\u5fdc\u3058\u305f\u914d\u7f6e\u8a2d\u8a08\u300d\u3067\u3059\u3002\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u540c\u3058 SSD \u30d7\u30fc\u30eb\u306b\u7f6e\u304f\u306e\u3067\u306f\u306a\u304f\u3001<\/p> <ul> <li>\u9ad8\u983b\u5ea6\u3067\u8aad\u307f\u66f8\u304d\u3055\u308c\u308b\u30db\u30c3\u30c8\u30c7\u30fc\u30bf<\/li> <li>\u305f\u307e\u306b\u53c2\u7167\u3055\u308c\u308b\u30a6\u30a9\u30fc\u30e0\u30c7\u30fc\u30bf<\/li> <li>\u307b\u3068\u3093\u3069\u8aad\u307f\u66f8\u304d\u3055\u308c\u306a\u3044\u30a2\u30fc\u30ab\u30a4\u30d6\u30c7\u30fc\u30bf<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u30ec\u30a4\u30e4\u306b\u5206\u3051\u3001\u305d\u308c\u305e\u308c\u306b\u9069\u3057\u305f\u30b9\u30c8\u30ec\u30fc\u30b8\u30af\u30e9\u30b9\u3092\u5272\u308a\u5f53\u3066\u308b\u8a2d\u8a08\u304c\u6709\u52b9\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001<\/p> <ul> <li>\u30db\u30c3\u30c8\u30c7\u30fc\u30bf\uff1a\u9ad8\u8010\u4e45\u30fb\u9ad8\u6027\u80fd\u306a\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba SSD\uff08\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3082\u7a4d\u6975\u7684\u306b\u50cd\u304f\uff09<\/li> <li>\u30a6\u30a9\u30fc\u30e0\u30c7\u30fc\u30bf\uff1a\u30b3\u30b9\u30c8\u91cd\u8996\u306e SSD\uff0b\u5b9a\u671f\u7684\u306a scrub<\/li> <li>\u30a2\u30fc\u30ab\u30a4\u30d6\u30c7\u30fc\u30bf\uff1aHDD \u3084\u30c6\u30fc\u30d7\u7b49\u3001\u9577\u671f\u4fdd\u6301\u306b\u5411\u3044\u305f\u30e1\u30c7\u30a3\u30a2<\/li> <\/ul> <p>\u306e\u3088\u3046\u306a\u69cb\u6210\u3092\u3068\u308b\u3053\u3068\u3067\u3001\u300c\u307b\u3068\u3093\u3069\u30a2\u30af\u30bb\u30b9\u3057\u306a\u3044\u3051\u308c\u3069\u6d88\u3048\u3066\u306f\u3044\u3051\u306a\u3044\u30c7\u30fc\u30bf\u300d\u3092\u3001SSD \u5358\u4f53\u306e\u30ea\u30c6\u30f3\u30b7\u30e7\u30f3\u7279\u6027\u306b\u4e38\u6295\u3052\u3057\u306a\u3044\u3067\u3059\u3080\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u307e\u305f\u3001\u300c\u6642\u9593\u3092\u5473\u65b9\u306b\u3064\u3051\u308b\u904b\u7528\u300d\u3082\u91cd\u8981\u3067\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001<\/p> <ul> <li>\u5b9a\u671f\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30a6\u30a3\u30f3\u30c9\u30a6\u306b scrub \u3084\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u691c\u8a3c\u3092\u7d44\u307f\u8fbc\u3080<\/li> <li>SMART \u3084\u30d9\u30f3\u30c0\u30fc\u56fa\u6709\u30ed\u30b0\u3092\u76e3\u8996\u3057\u3001ECC \u8a02\u6b63\u91cf\u30fb\u30ea\u30c8\u30e9\u30a4\u56de\u6570\u306a\u3069\u306e\u30c8\u30ec\u30f3\u30c9\u3092\u7d99\u7d9a\u7684\u306b\u898b\u308b<\/li> <li>\u300c\u3061\u3087\u3063\u3068\u304a\u304b\u3057\u3044\u300d\u30ec\u30d9\u30eb\u306e\u5146\u5019\u304c\u51fa\u305f\u6bb5\u968e\u3067\u3001\u8a08\u753b\u7684\u306a\u7f6e\u304d\u63db\u3048\u3084\u30c7\u30fc\u30bf\u79fb\u884c\u3092\u691c\u8a0e\u3059\u308b<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u65bd\u7b56\u3067\u3059\u3002\u3053\u3053\u3067\u52b9\u3044\u3066\u304f\u308b\u306e\u304c\u3001\u7b2c7\u7ae0\u3067\u89e6\u308c\u305f\u300c\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba SSD \u306e\u9759\u304b\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u300d\u3067\u3059\u3002\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u5185\u90e8\u3067\u9811\u5f35\u3063\u3066\u3044\u308b\u90e8\u5206\u3092\u3001\u30db\u30b9\u30c8\u5074\u3067\u89b3\u6e2c\u30fb\u88dc\u5b8c\u3059\u308b\u3053\u3068\u3067\u3001\u300c\u6c17\u3065\u3044\u305f\u3068\u304d\u306b\u306f ECC \u304c\u9650\u754c\u3092\u8d85\u3048\u3066\u3044\u305f\u300d\u3068\u3044\u3046\u4e8b\u614b\u3092\u907f\u3051\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u305f\u3060\u3057\u3001\u3053\u3046\u3057\u305f\u8a2d\u8a08\u30fb\u904b\u7528\u306f\u3001\u5358\u7d14\u306a\u300cRAID \u30ec\u30d9\u30eb\u3092\u3069\u3046\u3059\u308b\u304b\u300d\u300c\u4f55 TB \u306e SSD \u3092\u4f55\u672c\u8cb7\u3046\u304b\u300d\u3068\u3044\u3063\u305f\u30ec\u30d9\u30eb\u306e\u8a71\u3092\u8d85\u3048\u3001<\/p> <ul> <li>\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306e\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u5206\u6790<\/li> <li>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\uff0f\u30a2\u30fc\u30ab\u30a4\u30d6\u6226\u7565<\/li> <li>\u969c\u5bb3\u6642\u306e\u696d\u52d9\u5f71\u97ff\u3068\u5fa9\u65e7\u65b9\u91dd<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u30d3\u30b8\u30cd\u30b9\u5074\u306e\u8981\u4ef6\u3068\u6df1\u304f\u7d61\u3093\u3067\u304d\u307e\u3059\u3002\u3053\u3053\u304c\u3001\u4e00\u822c\u7684\u306a\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u8a18\u4e8b\u3067\u306f\u30ab\u30d0\u30fc\u3057\u304d\u308c\u306a\u3044\u9818\u57df\u3067\u3042\u308a\u3001\u500b\u5225\u6848\u4ef6\u3054\u3068\u306b\u8a2d\u8a08\u3068\u691c\u8a3c\u304c\u5fc5\u8981\u306b\u306a\u308b\u90e8\u5206\u3067\u3059\u3002<\/p> <p>\u6b21\u7ae0\u3067\u306f\u3001\u300c\u58ca\u308c\u305f\u3089\u5fa9\u65e7\u3059\u308b\u300d\u3068\u3044\u3046\u767a\u60f3\u304b\u3089\u4e00\u6b69\u9032\u3093\u3067\u3001\u300c\u6700\u521d\u304b\u3089\u52a3\u5316\u3068\u5fa9\u65e7\u3092\u524d\u63d0\u306b\u3057\u305f\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u300d\u3092\u3069\u3046\u63cf\u304f\u304b\u3001\u305d\u3057\u3066\u305d\u306e\u8b70\u8ad6\u306e\u4e2d\u3067\u5c02\u9580\u5bb6\u3092\u3069\u3046\u6d3b\u7528\u3059\u3079\u304d\u304b\u3092\u6574\u7406\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\r\n\r\n\r\n\r\n<a id=\"sec10\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u300c\u58ca\u308c\u305f\u3089\u5fa9\u65e7\u300d\u304b\u3089\u300c\u58ca\u308c\u308b\u524d\u306b\u52a3\u5316\u3092\u8a2d\u8a08\u3059\u308b\u300d\u3078\uff1aSSD\u6642\u4ee3\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u6307\u91dd<\/h2> <p>\u3053\u3053\u307e\u3067\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u6280\u8853\u3068\u305d\u306e\u80cc\u666f\u306b\u3042\u308b\u30d5\u30e9\u30c3\u30b7\u30e5\u30bb\u30eb\u306e\u7269\u7406\u73fe\u8c61\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u5185\u90e8\u306e\u632f\u308b\u821e\u3044\u3001\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba SSD \u306e\u9759\u304b\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3001\u305d\u3057\u3066\u30c7\u30fc\u30bf\u5fa9\u65e7\u73fe\u5834\u304b\u3089\u898b\u305f\u75c7\u72b6\u3068\u904b\u7528\u5074\u3067\u306e\u88dc\u5b8c\u7b56\u3092\u898b\u3066\u304d\u307e\u3057\u305f\u3002\u305d\u308d\u305d\u308d\u3001\u300c\u3067\u3001\u7d50\u5c40\u3069\u3046\u8a2d\u8a08\u3059\u308c\u3070\u3044\u3044\u306e\uff1f\u300d\u3068\u3044\u3046\u672c\u97f3\u304c\u51fa\u3066\u304f\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3060\u3068\u601d\u3044\u307e\u3059\u3002<\/p> <p>\u7d50\u8ad6\u3092\u5148\u306b\u8a00\u3046\u3068\u3001SSD \u6642\u4ee3\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3067\u91cd\u8981\u306a\u306e\u306f\u3001<\/p> <ul> <li>\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u5197\u9577\u6027\uff08RAID \u3084\u591a\u91cd\u5316\uff09<\/li> <li>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u5197\u9577\u6027\uff08\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3001\u30d0\u30fc\u30b8\u30e7\u30cb\u30f3\u30b0\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u306e\u6574\u5408\u6027\u4fdd\u969c\uff09<\/li> <li>\u904b\u7528\u306e\u5197\u9577\u6027\uff08\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\uff0f\u30ea\u30cf\u30fc\u30b5\u30eb\u3001scrub\u3001\u30ed\u30b0\u76e3\u8996\u3001\u8a08\u753b\u7684\u306a\u66f4\u65b0\uff09<\/li> <\/ul> <p>\u3092\u7d44\u307f\u5408\u308f\u305b\u3001\u300c\u30bb\u30eb\u304c\u52a3\u5316\u3059\u308b\u3053\u3068\u300d\u305d\u306e\u3082\u306e\u3092\u524d\u63d0\u306b\u3057\u305f\u8a2d\u8a08\u306b\u30b7\u30d5\u30c8\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u300c\u58ca\u308c\u306a\u3044 SSD \u3092\u9078\u3076\u300d\u3067\u306f\u306a\u304f\u3001\u300c\u58ca\u308c\u3066\u3082\u60f3\u5b9a\u306e\u7bc4\u56f2\u5185\u306b\u53ce\u307e\u308b\u3088\u3046\u306b\u3059\u308b\u300d\u65b9\u5411\u306b\u767a\u60f3\u3092\u5207\u308a\u66ff\u3048\u308b\u3001\u3068\u3044\u3046\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<\/p> <hr> <p>\u3053\u3053\u3067\u3001\u73fe\u5834\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5fc3\u306e\u58f0\u3092\u3082\u3046\u4e00\u5ea6\u62fe\u3063\u3066\u307f\u307e\u3059\u3002<\/p> <p>\u300c\u305d\u3046\u306f\u8a00\u3063\u3066\u3082\u3001\u5168\u90e8\u3084\u308b\u306e\u306f\u73fe\u5b9f\u7684\u3058\u3083\u306a\u3044\u3057\u3001\u4e88\u7b97\u3082\u6642\u9593\u3082\u9650\u3089\u308c\u3066\u3044\u308b\u300d<br> \u300c\u3069\u3053\u307e\u3067\u3084\u308c\u3070\u201c\u5341\u5206\u201d\u306a\u306e\u304b\u3001\u5224\u65ad\u57fa\u6e96\u304c\u77e5\u308a\u305f\u3044\u300d<\/p> <p>\u3053\u306e\u30e2\u30e4\u30e2\u30e4\u306f\u81ea\u7136\u306a\u3082\u306e\u3067\u3059\u3057\u3001\u3080\u3057\u308d\u5065\u5168\u306a\u7591\u3044\u3060\u3068\u601d\u3044\u307e\u3059\u3002\u3059\u3079\u3066\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u6700\u9ad8\u30ec\u30d9\u30eb\u306e\u5197\u9577\u6027\u3068\u904b\u7528\u3092\u6574\u3048\u308b\u306e\u306f\u73fe\u5b9f\u7684\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3057\u3001\u30b3\u30b9\u30c8\u306e\u304b\u3051\u65b9\u3092\u9593\u9055\u3048\u308b\u3068\u3001\u300c\u4fdd\u967a\u3070\u304b\u308a\u539a\u304f\u3066\u809d\u5fc3\u306e\u696d\u52d9\u304c\u9032\u307e\u306a\u3044\u300d\u3068\u3044\u3046\u672c\u672b\u8ee2\u5012\u306a\u72b6\u614b\u306b\u3082\u306a\u308a\u5f97\u307e\u3059\u3002<\/p> <p>\u3060\u304b\u3089\u3053\u305d\u3001SSD \u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3084\u30c7\u30fc\u30bf\u5fa9\u65e7\u306e\u89b3\u70b9\u3092\u8e0f\u307e\u3048\u305f\u4e0a\u3067\u3001<\/p> <ul> <li>\u3069\u306e\u30b7\u30b9\u30c6\u30e0\uff0f\u30c7\u30fc\u30bf\u304c\u300c\u58ca\u308c\u3066\u306f\u3044\u3051\u306a\u3044\u300d\u30ec\u30d9\u30eb\u306a\u306e\u304b<\/li> <li>\u58ca\u308c\u305f\u5834\u5408\u306b\u3001\u3069\u306e\u7a0b\u5ea6\u306e\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\uff0f\u30c7\u30fc\u30bf\u640d\u5931\u306a\u3089\u8a31\u5bb9\u3067\u304d\u308b\u306e\u304b<\/li> <li>\u305d\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u305f\u3081\u306b\u3001\u3069\u3053\u307e\u3067\u3092\u6a19\u6e96\u8a2d\u8a08\u3067\u3001\u3069\u3053\u304b\u3089\u3092\u500b\u5225\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u3068\u3059\u308b\u306e\u304b<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u7dda\u5f15\u304d\u3092\u3001\u30d3\u30b8\u30cd\u30b9\u5074\u3068\u4e00\u7dd2\u306b\u6c7a\u3081\u308b\u3053\u3068\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u7dda\u5f15\u304d\u304c\u66d6\u6627\u306a\u307e\u307e\u300c\u306a\u3093\u3068\u306a\u304f RAID \u3092\u7d44\u3093\u3067\u3044\u308b\u300d\u300c\u306a\u3093\u3068\u306a\u304f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u53d6\u3063\u3066\u3044\u308b\u300d\u3068\u3044\u3063\u305f\u72b6\u614b\u3060\u3068\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u6280\u8853\u3084\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba SSD \u306e\u6a5f\u80fd\u3082\u3001\u5341\u5206\u306a\u30ea\u30bf\u30fc\u30f3\u3092\u751f\u307e\u306a\u3044\u307e\u307e\u6d88\u8cbb\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p> <p>\u4e00\u65b9\u3067\u3001\u30c7\u30fc\u30bf\u5fa9\u65e7\u306e\u73fe\u5834\u304b\u3089\u898b\u308b\u3068\u3001\u300c\u4e8b\u524d\u306b\u3053\u3053\u307e\u3067\u8a2d\u8a08\u3057\u3066\u304a\u3044\u3066\u304f\u308c\u308c\u3070\u3001\u5fa9\u65e7\u306e\u9078\u629e\u80a2\u304c\u3082\u3063\u3068\u5e83\u304c\u3063\u305f\u306e\u306b\u300d\u3068\u3044\u3046\u30b1\u30fc\u30b9\u304c\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u4f8b\u3048\u3070\u3001<\/p> <ul> <li>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306e\u691c\u8a3c\u304c\u5168\u304f\u884c\u308f\u308c\u3066\u304a\u3089\u305a\u3001\u3044\u3056\u30ea\u30b9\u30c8\u30a2\u3057\u3088\u3046\u3068\u3057\u305f\u3089\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u81ea\u4f53\u304c\u58ca\u308c\u3066\u3044\u305f<\/li> <li>RAID \u3068\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306e\u4e16\u4ee3\u7ba1\u7406\u304c\u6574\u7406\u3055\u308c\u3066\u304a\u3089\u305a\u3001\u300c\u3044\u3064\u306e\u72b6\u614b\u306b\u623b\u3059\u306e\u304c\u696d\u52d9\u7684\u306b\u59a5\u5f53\u304b\u300d\u304c\u5224\u65ad\u3067\u304d\u306a\u3044<\/li> <li>\u30b9\u30c8\u30ec\u30fc\u30b8\u69cb\u6210\u3084\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u30d0\u30fc\u30b8\u30e7\u30f3\u3001\u969c\u5bb3\u524d\u5f8c\u306e\u64cd\u4f5c\u5c65\u6b74\u304c\u8a18\u9332\u3055\u308c\u3066\u304a\u3089\u305a\u3001\u89e3\u6790\u306b\u4f59\u8a08\u306a\u6642\u9593\u304c\u304b\u304b\u308b<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u4f8b\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u4ee5\u524d\u306e\u300c\u60c5\u5831\u3068\u8a2d\u8a08\u306e\u554f\u984c\u300d\u3067\u3059\u3002\u3053\u3053\u3092\u6574\u7406\u3059\u308b\u3060\u3051\u3067\u3082\u3001\u969c\u5bb3\u767a\u751f\u6642\u306e\u30ea\u30ab\u30d0\u30ea\u30d1\u30b9\u306f\u5927\u304d\u304f\u5909\u308f\u308a\u307e\u3059\u3057\u3001\u300c\u6700\u60aa\u306e\u4e8b\u614b\u300d\u3092\u304b\u306a\u308a\u72ed\u3044\u7bc4\u56f2\u306b\u62bc\u3057\u8fbc\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p> <p>\u3068\u306f\u3044\u3048\u3001\u3059\u3079\u3066\u306e\u4f01\u696d\u304c\u81ea\u793e\u3060\u3051\u3067\u3053\u3053\u307e\u3067\u306e\u8a2d\u8a08\u3068\u904b\u7528\u3092\u3053\u306a\u3059\u306e\u306f\u5bb9\u6613\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002SSD \u306e\u4e16\u4ee3\u3084\u30b9\u30c8\u30ec\u30fc\u30b8\u30d9\u30f3\u30c0\u30fc\u3054\u3068\u306e\u6319\u52d5\u5dee\u3001RAID \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3084\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3001\u4eee\u60f3\u5316\u57fa\u76e4\u3001\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u306e\u4ed5\u69d8\u307e\u3067\u3092\u6a2a\u65ad\u7684\u306b\u7406\u89e3\u3057\u306a\u304c\u3089\u3001\u300c\u81ea\u793e\u306e\u696d\u52d9\u8981\u4ef6\u300d\u306b\u5408\u308f\u305b\u3066\u6700\u9069\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u6c7a\u3081\u3066\u3044\u304f\u4f5c\u696d\u306f\u3001\u3069\u3046\u3057\u3066\u3082\u5c02\u9580\u6027\u3068\u7d4c\u9a13\u5024\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u305d\u306e\u610f\u5473\u3067\u3001\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u6280\u8853\u3068\u30c7\u30fc\u30bf\u5fa9\u65e7\u306e\u8a71\u306f\u3001\u300c\u4e00\u822c\u8ad6\u3068\u3057\u3066\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u30d9\u30fc\u30b9\u30e9\u30a4\u30f3\u300d\u3068\u300c\u500b\u5225\u6848\u4ef6\u3068\u3057\u3066\u5c02\u9580\u5bb6\u306b\u76f8\u8ac7\u3059\u3079\u304d\u30e9\u30a4\u30f3\u300d\u3092\u5206\u3051\u308b\u305f\u3081\u306e\u6750\u6599\u3001\u3068\u3044\u3046\u4f4d\u7f6e\u3065\u3051\u306b\u306a\u308a\u307e\u3059\u3002\u4e00\u822c\u8ad6\u3060\u3051\u3067\u30ab\u30d0\u30fc\u3067\u304d\u308b\u7bc4\u56f2\u306b\u306f\u9650\u754c\u304c\u3042\u308a\u3001<\/p> <ul> <li>\u5177\u4f53\u7684\u306a\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u3084\u904b\u7528\u4f53\u5236\u306b\u5373\u3057\u305f\u30ea\u30b9\u30af\u8a55\u4fa1<\/li> <li>\u969c\u5bb3\u767a\u751f\u6642\u306e\u30b7\u30ca\u30ea\u30aa\u3068\u3001\u305d\u306e\u3068\u304d\u53d6\u308a\u5f97\u308b\u9078\u629e\u80a2\u306e\u8a2d\u8a08<\/li> <li>\u65e2\u5b58\u74b0\u5883\u304b\u3089\u306e\u6bb5\u968e\u7684\u306a\u6539\u5584\u30ed\u30fc\u30c9\u30de\u30c3\u30d7<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u90e8\u5206\u306f\u3001\u3069\u3046\u3057\u3066\u3082\u500b\u5225\u306b\u8a70\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u3001\u30c7\u30fc\u30bf\u5fa9\u65e7\u3068\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u306e\u4e21\u65b9\u306b\u5b9f\u52d9\u7d4c\u9a13\u3092\u6301\u3064\u5916\u90e8\u30d1\u30fc\u30c8\u30ca\u30fc\u2015\u2015\u305f\u3068\u3048\u3070\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240\u306e\u3088\u3046\u306a\u5c02\u9580\u5bb6\u3092\u3046\u307e\u304f\u4f7f\u3046\u3053\u3068\u3067\u3001\u300c\u73fe\u5834\u306e\u30e2\u30e4\u30e2\u30e4\u300d\u3092\u73fe\u5b9f\u7684\u306a\u6539\u5584\u8a08\u753b\u306b\u5909\u63db\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u3053\u3053\u307e\u3067\u3067\u672c\u7de8\u306e 10 \u7ae0\u306f\u4e00\u533a\u5207\u308a\u3067\u3059\u3002\u6700\u5f8c\u306b\u3001\u73fe\u5728\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3054\u3068\u306b\u3001\u300cSSD \u3084\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u6319\u52d5\u3092\u8e0f\u307e\u3048\u305f\u6ce8\u610f\u70b9\u300d\u3092\u7c21\u5358\u306b\u6574\u7406\u3057\u3066\u7de0\u3081\u304f\u304f\u308a\u307e\u3059\u3002<\/p>\r\n\r\n\r\n\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u4ed8\u9332\uff1a\u4e3b\u8981\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3054\u3068\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u8a2d\u8a08\u30fb\u5b9f\u88c5\u4e0a\u306e\u6ce8\u610f\u70b9<\/h2> <p>\u6700\u5f8c\u306b\u3001\u73fe\u5834\u3067\u3088\u304f\u4f7f\u308f\u308c\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3054\u3068\u306b\u3001\u300cSSD \u306e\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3084\u30b9\u30c8\u30ec\u30fc\u30b8\u7279\u6027\u3092\u8e0f\u307e\u3048\u3066\u6c17\u3092\u3064\u3051\u305f\u3044\u30dd\u30a4\u30f3\u30c8\u300d\u3092\u30b3\u30f3\u30d1\u30af\u30c8\u306b\u6574\u7406\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u6319\u3052\u308b\u306e\u306f\u3042\u304f\u307e\u3067\u4e00\u822c\u7684\u306a\u89b3\u70b9\u3067\u3042\u308a\u3001\u5b9f\u969b\u306b\u306f\u8a00\u8a9e\u51e6\u7406\u7cfb\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3084\u30e9\u30f3\u30bf\u30a4\u30e0\u3001\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3001OS\u30fb\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u3063\u3066\u6319\u52d5\u304c\u5909\u308f\u308b\u70b9\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p> <hr> <h3>\u4f4e\u30ec\u30d9\u30eb\u8a00\u8a9e\uff08C \/ C++ \/ Rust \u306a\u3069\uff09<\/h3> <ul> <li><strong>\u76f4\u63a5 I\/O\u30fb\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\u306e\u6271\u3044\u306b\u6ce8\u610f\uff1a<\/strong>OS \u306e\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30d0\u30a4\u30d1\u30b9\u3059\u308b\u76f4\u63a5 I\/O\uff08O_DIRECT \u306a\u3069\uff09\u3092\u591a\u7528\u3059\u308b\u5834\u5408\u3001\u30a2\u30d7\u30ea\u5074\u304c\u30d5\u30e9\u30c3\u30b7\u30e5\u306e\u7279\u6027\u3092\u610f\u8b58\u3057\u305f\u66f8\u304d\u8fbc\u307f\u30b5\u30a4\u30ba\u30fb\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3092\u8a2d\u8a08\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li> <li><strong>\u30ed\u30b0\u30fb\u30c8\u30ec\u30fc\u30b9\u306e\u66f8\u304d\u3059\u304e\uff1a<\/strong>\u8a73\u7d30\u30ed\u30b0\u3092\u7d30\u304b\u3044\u540c\u671f\u66f8\u304d\u8fbc\u307f\u3067\u51fa\u529b\u3059\u308b\u3068\u3001\u7279\u5b9a\u9818\u57df\u306b\u5bfe\u3057\u3066\u904e\u5270\u306a P\/E \u30b5\u30a4\u30af\u30eb\u3084\u30ea\u30fc\u30c9\u30c7\u30a3\u30b9\u30bf\u30fc\u30d6\u3092\u8a98\u767a\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u65b9\u5f0f\u3084\u30d0\u30c3\u30c1\u66f8\u304d\u8fbc\u307f\u3067\u5e73\u6e96\u5316\u3059\u308b\u8a2d\u8a08\u304c\u6709\u52b9\u3067\u3059\u3002<\/li> <li><strong>\u72ec\u81ea\u30b9\u30c8\u30ec\u30fc\u30b8\u30a8\u30f3\u30b8\u30f3\u5b9f\u88c5\u6642\u306e\u8cac\u4efb\u7bc4\u56f2\uff1a<\/strong>\u81ea\u524d\u306e B+ \u6728\u3084 LSM \u30c4\u30ea\u30fc\u5b9f\u88c5\u3092\u884c\u3046\u5834\u5408\u3001\u66f8\u304d\u8fbc\u307f\u30d1\u30bf\u30fc\u30f3\u304c FTL \u3068\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u306b\u306a\u3089\u306a\u3044\u3088\u3046\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u5411\u3051\u306e\u8a2d\u8a08\u6307\u91dd\uff08\u30ed\u30b0\u69cb\u9020\u5316\u30fb\u5927\u304d\u3081\u306e\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u66f8\u304d\u8fbc\u307f\u306a\u3069\uff09\u3092\u610f\u8b58\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li> <\/ul> <hr> <h3>\u30de\u30cd\u30fc\u30b8\u30c9\u8a00\u8a9e\uff08Java \/ C# \/ Go \u306a\u3069\uff09<\/h3> <ul> <li><strong>GC \u3068 I\/O \u306e\u76f8\u4e92\u4f5c\u7528\uff1a<\/strong>GC \u30d1\u30fc\u30ba\u4e2d\u306e I\/O \u30d1\u30bf\u30fc\u30f3\u304c\u504f\u308b\u3068\u3001\u4e00\u6642\u7684\u306b\u7279\u5b9a\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u96c6\u4e2d\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30ed\u30b0\u3084\u4e00\u6642\u30d5\u30a1\u30a4\u30eb\u306e\u8a2d\u8a08\u3092\u9593\u9055\u3048\u308b\u3068\u3001\u30db\u30c3\u30c8\u30bb\u30eb\u554f\u984c\u3092\u52a9\u9577\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li> <li><strong>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u8a2d\u5b9a\u3092\u9d5c\u5451\u307f\u306b\u3057\u306a\u3044\uff1a<\/strong>ORM \u3084\u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u3069\u306e\u3088\u3046\u306b\u30d5\u30e9\u30c3\u30b7\u30e5\u3084\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3063\u3066\u3044\u308b\u304b\u3092\u628a\u63e1\u3057\u3001\u5927\u91cf\u306e\u5c0f\u3055\u306a\u540c\u671f\u66f8\u304d\u8fbc\u307f\u3084 fsync \u306e\u591a\u7528\u304c\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/li> <li><strong>\u30b3\u30f3\u30c6\u30ca\u74b0\u5883\u3067\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u62bd\u8c61\u5316\uff1a<\/strong>\u30b3\u30f3\u30c6\u30ca\u30aa\u30fc\u30b1\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u74b0\u5883\uff08Kubernetes \u306a\u3069\uff09\u3067\u306f\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u30af\u30e9\u30b9\u3084 PVC \u306e\u8a2d\u5b9a\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u9593\u306b\u3082\u3046\u4e00\u6bb5\u62bd\u8c61\u5316\u30ec\u30a4\u30e4\u30fc\u3092\u4f5c\u308a\u307e\u3059\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5074\u3060\u3051\u898b\u3066\u3044\u308b\u3068\u3001\u300c\u3069\u306e SSD \u306e\u4e0a\u3067\u3069\u306e\u3088\u3046\u306b\u52d5\u3044\u3066\u3044\u308b\u304b\u300d\u304c\u628a\u63e1\u3057\u3065\u3089\u304f\u306a\u308b\u305f\u3081\u3001\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u30c1\u30fc\u30e0\u3068\u306e\u9023\u643a\u304c\u91cd\u8981\u3067\u3059\u3002<\/li> <\/ul> <hr> <h3>\u30b9\u30af\u30ea\u30d7\u30c8\u8a00\u8a9e\uff08Python \/ Ruby \/ PHP \/ JavaScript(Node.js) \u306a\u3069\uff09<\/h3> <ul> <li><strong>\u4e00\u6642\u30d5\u30a1\u30a4\u30eb\u30fb\u30ad\u30e3\u30c3\u30b7\u30e5\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u6271\u3044\uff1a<\/strong>\u30c6\u30f3\u30dd\u30e9\u30ea\u30d5\u30a1\u30a4\u30eb\u3084\u30ad\u30e3\u30c3\u30b7\u30e5\u3092 \/tmp \u3084\u540c\u4e00\u30dc\u30ea\u30e5\u30fc\u30e0\u306b\u7121\u9020\u4f5c\u306b\u7f6e\u304f\u3068\u3001\u7279\u5b9a\u9818\u57df\u304c\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u5316\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u7528\u9014\u306b\u5fdc\u3058\u3066\u30b9\u30c8\u30ec\u30fc\u30b8\u30af\u30e9\u30b9\u3092\u5206\u3051\u308b\u3001\u30b5\u30a4\u30ba\u5236\u9650\u3084\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u884c\u3046\u306a\u3069\u306e\u5de5\u592b\u304c\u5fc5\u8981\u3067\u3059\u3002<\/li> <li><strong>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\uff1a<\/strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u3084\u30ad\u30e5\u30fc\u3092\u30d5\u30a1\u30a4\u30eb\u30d9\u30fc\u30b9\u3067\u7ba1\u7406\u3059\u308b\u8a2d\u5b9a\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u77ed\u547d\u304b\u3064\u5927\u91cf\u306e\u5c0f\u3055\u306a\u30d5\u30a1\u30a4\u30eb\u304c\u767a\u751f\u3057\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u306b\u3068\u3063\u3066\u52b9\u7387\u306e\u60aa\u3044\u66f8\u304d\u8fbc\u307f\u30d1\u30bf\u30fc\u30f3\u306b\u306a\u308a\u304c\u3061\u3067\u3059\u3002\u5c02\u7528\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u30b9\u30c8\u30a2\uff08Redis \u306a\u3069\uff09\u3078\u306e\u5207\u308a\u51fa\u3057\u3082\u691c\u8a0e\u6750\u6599\u306b\u306a\u308a\u307e\u3059\u3002<\/li> <li><strong>\u975e\u540c\u671f I\/O \u3068\u30ed\u30b0\u8a2d\u8a08\uff1a<\/strong>Node.js \u3084 Python \u306e\u975e\u540c\u671f I\/O \u3092\u4f7f\u3046\u5834\u5408\u3067\u3082\u3001\u30ed\u30b0\u51fa\u529b\u3084\u72b6\u614b\u4fdd\u5b58\u306e\u8a2d\u8a08\u3092\u8aa4\u308b\u3068\u3001\u4e00\u90e8\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u8ca0\u8377\u304c\u504f\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u30ed\u30ae\u30f3\u30b0\u306e\u30d0\u30c3\u30c1\u5316\u30fb\u96c6\u7d04\u57fa\u76e4\uff08\u4f8b\uff1a\u30ed\u30b0\u30b3\u30ec\u30af\u30bf\u3078\u306e\u9001\u4fe1\uff09\u3092\u524d\u63d0\u306b\u3057\u305f\u8a2d\u8a08\u304c\u671b\u307e\u3057\u3044\u3067\u3059\u3002<\/li> <\/ul> <hr> <h3>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a00\u8a9e\u30fb\u30af\u30a8\u30ea\uff08SQL \/ NoSQL \u30af\u30a8\u30ea\u306a\u3069\uff09<\/h3> <ul> <li><strong>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u8a2d\u8a08\u304c\u30b9\u30c8\u30ec\u30fc\u30b8\u30d1\u30bf\u30fc\u30f3\u306b\u76f4\u7d50\uff1a<\/strong>\u7279\u5b9a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3078\u306e\u904e\u5270\u306a\u4f9d\u5b58\u306f\u3001\u305d\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30d5\u30a1\u30a4\u30eb\u3092\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u5316\u3055\u305b\u307e\u3059\u3002\u30af\u30a8\u30ea\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u3084\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u6226\u7565\u306f\u3001\u6027\u80fd\u3060\u3051\u3067\u306a\u304f\u30b9\u30c8\u30ec\u30fc\u30b8\u8ca0\u8377\u306e\u504f\u308a\u3068\u3044\u3046\u89b3\u70b9\u304b\u3089\u3082\u691c\u8a0e\u3059\u308b\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002<\/li> <li><strong>\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3068\u30ed\u30b0\u306e\u904b\u7528\uff1a<\/strong>\u591a\u304f\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f\u30da\u30fc\u30b8\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3084 WAL \u3092\u5099\u3048\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u306e\u6709\u52b9\u5316\u30fb\u904b\u7528\u304c\u4e0d\u5341\u5206\u3060\u3068\u3001\u30bb\u30eb\u30ec\u30d9\u30eb\u306e\u30a8\u30e9\u30fc\u304c\u4e0a\u4f4d\u3067\u691c\u51fa\u3055\u308c\u305a\u3001\u6c17\u3065\u3044\u305f\u3068\u304d\u306b\u306f\u5927\u304d\u306a\u8ad6\u7406\u7834\u58ca\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li> <\/ul> <hr> <p>\u3053\u3053\u307e\u3067\u6319\u3052\u305f\u6ce8\u610f\u70b9\u306f\u3001\u3069\u308c\u3082\u300c\u8a00\u8a9e\u3054\u3068\u306b\u6c17\u3092\u3064\u3051\u308b\u3079\u304d\u5165\u308a\u53e3\u300d\u306e\u4e00\u4f8b\u306b\u904e\u304e\u307e\u305b\u3093\u3002\u5b9f\u969b\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001<\/p> <ul> <li>\u8907\u6570\u8a00\u8a9e\u30fb\u8907\u6570\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u304c\u540c\u3058\u30b9\u30c8\u30ec\u30fc\u30b8\u3092\u5171\u6709\u3057\u3066\u3044\u308b<\/li> <li>\u30aa\u30f3\u30d7\u30ec\u3068\u30af\u30e9\u30a6\u30c9\u3001\u4eee\u60f3\u30de\u30b7\u30f3\u3068\u30b3\u30f3\u30c6\u30ca\u306a\u3069\u3001\u591a\u5c64\u69cb\u9020\u306b\u306a\u3063\u3066\u3044\u308b<\/li> <\/ul> <p>\u3053\u3068\u304c\u591a\u304f\u3001\u300c\u3053\u306e\u69cb\u6210\u306a\u3089\u3053\u3053\u304c\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306b\u306a\u308b\u300d\u300c\u3053\u306e\u904b\u7528\u3060\u3068\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3084\u30b9\u30af\u30e9\u30d3\u30f3\u30b0\u306e\u5f71\u97ff\u304c\u9855\u5728\u5316\u3057\u3084\u3059\u3044\u300d\u3068\u3044\u3063\u305f\u5224\u65ad\u306f\u3001\u3069\u3046\u3057\u3066\u3082\u500b\u5225\u306e\u69cb\u6210\u3092\u898b\u306a\u304c\u3089\u306e\u691c\u8a0e\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u3082\u3057\u3001<\/p> <ul> <li>\u65e2\u5b58\u306e SSD \u30d9\u30fc\u30b9\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u3001\u4eca\u3069\u3053\u306b\u30ea\u30b9\u30af\u304c\u6f5c\u3093\u3067\u3044\u308b\u304b\u6574\u7406\u3057\u305f\u3044<\/li> <li>\u65b0\u3057\u3044\u30b9\u30c8\u30ec\u30fc\u30b8\u69cb\u6210\u3092\u691c\u8a0e\u3057\u3066\u3044\u308b\u304c\u3001\u30bb\u30eb\u52a3\u5316\u3084\u30c7\u30fc\u30bf\u4fdd\u6301\u306e\u89b3\u70b9\u304b\u3089\u59a5\u5f53\u304b\u4e0d\u5b89\u304c\u3042\u308b<\/li> <li>\u3059\u3067\u306b\u969c\u5bb3\u304c\u767a\u751f\u3057\u3066\u304a\u308a\u3001\u3069\u3053\u307e\u3067\u5fa9\u65e7\u3067\u304d\u308b\u304b\u30fb\u4eca\u5f8c\u3069\u3046\u8a2d\u8a08\u3092\u898b\u76f4\u3059\u3079\u304d\u304b\u76f8\u8ac7\u3057\u305f\u3044<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u72b6\u6cc1\u304c\u3042\u308c\u3070\u3001\u672c\u8a18\u4e8b\u3067\u89e6\u308c\u305f\u3088\u3046\u306a\u4e00\u822c\u8ad6\u3092\u30d9\u30fc\u30b9\u306b\u3057\u3064\u3064\u3001\u5177\u4f53\u7684\u306a\u69cb\u6210\u30fb\u30ed\u30b0\u30fb\u904b\u7528\u4f53\u5236\u3092\u8e0f\u307e\u3048\u305f\u500b\u5225\u30a2\u30bb\u30b9\u30e1\u30f3\u30c8\u304c\u6709\u52b9\u3067\u3059\u3002\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240\u3067\u306f\u3001\u30c7\u30fc\u30bf\u5fa9\u65e7\u3068\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u30fb\u904b\u7528\u306e\u4e21\u65b9\u306e\u8996\u70b9\u304b\u3089\u3001SSD \u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u6280\u8853\u3092\u542b\u3080\u30b9\u30c8\u30ec\u30fc\u30b8\u5168\u4f53\u306e\u30ea\u30b9\u30af\u8a55\u4fa1\u3084\u3001\u73fe\u5b9f\u7684\u306a\u6539\u5584\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\u306e\u7b56\u5b9a\u3092\u304a\u624b\u4f1d\u3044\u3057\u3066\u3044\u307e\u3059\u3002<\/p> <p>\u300c\u306a\u3093\u3068\u306a\u304f\u4e0d\u5b89\u3060\u3051\u3069\u3001\u3069\u3053\u304b\u3089\u624b\u3092\u4ed8\u3051\u308c\u3070\u3044\u3044\u304b\u5206\u304b\u3089\u306a\u3044\u300d\u3068\u3044\u3046\u6bb5\u968e\u3067\u306e\u3054\u76f8\u8ac7\u3067\u3082\u69cb\u3044\u307e\u305b\u3093\u3002\u65e9\u3044\u6bb5\u968e\u3067\u72b6\u6cc1\u3092\u68da\u5378\u3057\u3059\u308b\u3053\u3068\u3067\u3001\u300c\u58ca\u308c\u305f\u3089\u5fa9\u65e7\u3059\u308b\u300d\u3060\u3051\u3067\u306a\u304f\u3001\u300c\u58ca\u308c\u308b\u524d\u306b\u52a3\u5316\u3092\u8a2d\u8a08\u3059\u308b\u300d\u305f\u3081\u306e\u5177\u4f53\u7684\u306a\u4e00\u6b69\u304c\u898b\u3048\u3066\u304d\u307e\u3059\u3002<\/p>\r\n\r\n\r\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-32b2ae66 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"32b2ae66\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-39b2357b\" data-id=\"39b2357b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-701008fb elementor-widget elementor-widget-text-editor\" data-id=\"701008fb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<style>h1.dai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin-top: 25px; \/* \u4e0a\u306e\u7a7a\u767d\u30922\u500d *\/    margin-bottom: 5px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}h2.fukudai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin-top: 25px; \/* \u4e0a\u306e\u7a7a\u767d\u30922\u500d *\/    margin-bottom: 5px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}.fukudai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin: 0 auto 50px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}.fukudai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin: 0 auto 50px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}<\/style><h2 class='fukudai'>\u306f\u3058\u3081\u306b<\/h2><br><p> SSD\u30bb\u30eb\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u6280\u8853\u306e\u73fe\u72b6\u3068\u91cd\u8981\u6027\u3092\u7406\u89e3\u3057\u3001\u30c7\u30fc\u30bf\u5fa9\u65e7\u306e\u57fa\u672c\u7684\u306a\u8003\u3048\u65b9\u3092\u7d39\u4ecb\u3057\u307e\u3059   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