{"id":44016,"date":"2025-07-04T19:29:34","date_gmt":"2025-07-04T10:29:34","guid":{"rendered":"https:\/\/jouhou.main.jp\/?p=44016"},"modified":"2026-01-23T11:33:14","modified_gmt":"2026-01-23T02:33:14","slug":"nas%e3%83%87%e3%82%a3%e3%82%b9%e3%82%af%e3%82%a8%e3%83%a9%e3%83%bc%e6%a4%9c%e7%9f%a5%ef%bc%9a%e3%83%aa%e3%82%a2%e3%83%ab%e3%82%bf%e3%82%a4%e3%83%a0%e5%af%be%e7%ad%96%e3%81%a8%e4%bf%ae%e5%be%a9","status":"publish","type":"post","link":"https:\/\/jouhou.main.jp\/?p=44016","title":{"rendered":"NAS\u30c7\u30a3\u30b9\u30af\u30a8\u30e9\u30fc\u691c\u77e5\uff1a\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u5bfe\u7b56\u3068\u4fee\u5fa9\u7de8"},"content":{"rendered":"\t\t
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\u6700\u77ed\u30c1\u30a7\u30c3\u30af<\/div>\r\n

NAS\u306e\u30c7\u30a3\u30b9\u30af\u30a8\u30e9\u30fc\u3092\u300c\u4eca\u3059\u3050\u6b62\u3081\u305a\u306b\u300d\u539f\u56e0\u3092\u7d5e\u3063\u3066\u3001\u6700\u5c0f\u5909\u66f4\u3067\u53ce\u675f\u3055\u305b\u308b<\/h2>\r\n

\u30ed\u30b0\u3068\u72b6\u614b\u3092\u5148\u306b\u56fa\u3081\u308b\u307b\u3069\u3001\u5fa9\u65e7\u304c\u901f\u304f\u30fb\u5b89\u5168\u306b\u306a\u308a\u307e\u3059\u3002\u4fee\u5fa9\u306f\u300c\u6700\u5c0f\u5909\u66f4\u300d\u3067\u3002<\/p>\r\n <\/div>\r\n\r\n

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\r\n 1<\/span>\r\n <\/div>\r\n
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30\u79d2\u3067\u4e89\u70b9\u3092\u7d5e\u308b<\/h3>\r\n

\u307e\u305a\u300c\u3069\u306e\u5c64\u3067\u6b62\u307e\u3063\u3066\u3044\u308b\u304b\u300d\u3092\u78ba\u5b9a\u3002\u30c7\u30a3\u30b9\u30af\u5358\u4f53 \/ RAID \/ \u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0 \/ \u5171\u6709\u30b5\u30fc\u30d3\u30b9\u306e\u3069\u3053\u304c\u4e3b\u56e0\u304b\u3092\u5207\u308a\u5206\u3051\u307e\u3059\u3002<\/p>\r\n 

# \u307e\u305a\u5168\u4f53\u50cf\uff08\u8aad\u3081\u308b\u7bc4\u56f2\u3067\uff09\r\ndmesg -T | tail -n 120\r\njournalctl -k -n 200 --no-pager\r\n\r\n# \u30c7\u30a3\u30b9\u30af\/RAID\u306e\u5165\u53e3\uff08Linux\u7cfbNAS\uff09\r\nlsblk -o NAME,SIZE,TYPE,MOUNTPOINT,MODEL,SERIAL\r\ncat \/proc\/mdstat 2>\/dev\/null\r\nmdadm --detail \/dev\/md0 2>\/dev\/null\r\n\r\n# SMART\uff08\u58ca\u308c\u304b\u3051\u306e\u5146\u5019\u3092\u62fe\u3046\uff09\r\nsmartctl -a \/dev\/sdX 2>\/dev\/null | egrep -i \"Reallocated|Pending|Uncorrect|CRC|Power_On|Temperature\"<\/pre>\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    
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\r\n          2<\/span>\r\n        <\/div>\r\n        
\r\n          
\u4e89\u70b9\u5225\uff1a\u4eca\u5f8c\u306e\u9078\u629e\u3084\u884c\u52d5<\/h3>\r\n          
\u75c7\u72b6\u306b\u5408\u308f\u305b\u3066\u300c\u8aad\u3080\u3060\u3051\u2192\u9694\u96e2\u2192\u6700\u5c0f\u4fee\u5fa9\u300d\u306e\u9806\u3067\u3002\u66f8\u304d\u8fbc\u307f\u304c\u5897\u3048\u308b\u64cd\u4f5c\u306f\u5f8c\u56de\u3057\u306b\u3057\u307e\u3059\u3002<\/p>\r\n\r\n          
\r\n            
A) \u300cI\/O error\u300d\u300cread error\u300d\u300csector\u300d\u7cfb\u304c\u5897\u3048\u308b<\/p>\r\n            
# \u8ffd\u52a0\u767a\u751f\u306e\u6709\u7121\u3092\u89b3\u5bdf\uff08\u8aad\u3080\u3060\u3051\uff09\r\ndmesg -T | egrep -i \"I\/O error|read error|medium error|reset|timeout\" | tail -n 120\r\n\r\n# \u7269\u7406\u969c\u5bb3\u5bc4\u308a\u306a\u3089\u300c\u901a\u96fb\u30fb\u8ca0\u8377\u300d\u3092\u5897\u3084\u3055\u305a\u3001\u91cd\u8981\u30c7\u30fc\u30bf\u306e\u9000\u907f\u512a\u5148\r\n# \u9000\u907f\u5148\u304c\u7528\u610f\u3067\u304d\u308b\u306a\u3089 rsync \u3067\u5fc5\u8981\u6700\u5c0f\u9650\u3060\u3051\r\nrsync -aH --info=progress2 --inplace --numeric-ids \/share\/important\/ \/mnt\/backup\/important\/<\/pre>\r\n          <\/div>\r\n\r\n          
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B) RAID\u304cdegraded \/ resync\u4e2d \/ rebuild\u304c\u6b62\u307e\u308b<\/p>\r\n            
# \u72b6\u614b\u78ba\u8a8d\uff08\u8aad\u3080\u3060\u3051\uff09\r\ncat \/proc\/mdstat\r\nmdadm --detail \/dev\/md0 2>\/dev\/null\r\n\r\n# \u9032\u307e\u306a\u3044\/\u843d\u3061\u308b\u5834\u5408\u306f\u300c\u30c7\u30a3\u30b9\u30af\u5074\u30a8\u30e9\u30fc\u300d\u3084\u300c\u30b1\u30fc\u30d6\u30eb\/\u30d0\u30c3\u30af\u30d7\u30ec\u30fc\u30f3\u300d\u3082\u7591\u3046\r\nsmartctl -a \/dev\/sdX 2>\/dev\/null | egrep -i \"Pending|Uncorrect|CRC\"<\/pre>\r\n          <\/div>\r\n\r\n          
\r\n            
C) \u5171\u6709\u306f\u843d\u3061\u308b\u304c\u30ed\u30fc\u30ab\u30eb\u306f\u898b\u3048\u308b\uff08SMB\/NFS\/AFP\u306e\u75c7\u72b6\uff09<\/p>\r\n            
# \u5171\u6709\u30b5\u30fc\u30d3\u30b9\u306e\u72b6\u614b\u78ba\u8a8d\uff08\u8aad\u3080\u3060\u3051\uff09\r\nsystemctl status smb nmb 2>\/dev\/null\r\nsystemctl status nfs-server 2>\/dev\/null\r\n\r\n# \u30ed\u30b0\u3067\u8a70\u307e\u308a\u3092\u898b\u308b\r\njournalctl -u smb -n 120 --no-pager 2>\/dev\/null\r\njournalctl -u nfs-server -n 120 --no-pager 2>\/dev\/null<\/pre>\r\n          <\/div>\r\n\r\n          
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D) \u5bb9\u91cf\u306f\u3042\u308b\u306e\u306b\u66f8\u3051\u306a\u3044 \/ \u901f\u5ea6\u304c\u6025\u843d \/ \u65ad\u7d9a\u7684\u306b\u56fa\u307e\u308b<\/p>\r\n            
# \u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\/\u30de\u30a6\u30f3\u30c8\u72b6\u614b\uff08\u8aad\u3080\u3060\u3051\uff09\r\nmount | egrep -i \"ro,|errors=\"\r\ndf -hT\r\ndmesg -T | egrep -i \"EXT4-fs|XFS|BTRFS|remount|readonly|corrupt\" | tail -n 120<\/pre>\r\n          <\/div>\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    
\r\n      
\r\n        
\r\n          3<\/span>\r\n        <\/div>\r\n        
\r\n          
\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<\/h3>\r\n          
\u300c\u8ab0\u306e\u30c7\u30fc\u30bf\u306b\u5f71\u97ff\u3059\u308b\u304b\u300d\u300c\u623b\u305b\u308b\u304b\u300d\u3092\u5148\u306b\u78ba\u5b9a\u3002\u3053\u3053\u304c\u66d6\u6627\u3060\u3068\u3001\u4fee\u5fa9\u304c\u9577\u671f\u5316\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\r\n          
# \u5171\u6709\/\u672c\u756a\u5f71\u97ff\u306e\u68da\u5378\u3057\uff08\u8aad\u3080\u3060\u3051\uff09\r\nwho\r\nw\r\nlsof | wc -l 2>\/dev\/null\r\n\r\n# \u30de\u30a6\u30f3\u30c8\u5148\u3068\u5171\u6709\u30d1\u30b9\u306e\u78ba\u8a8d\uff08\u74b0\u5883\u306b\u3088\u308a\u5dee\u3042\u308a\uff09\r\nexportfs -v 2>\/dev\/null\r\ntestparm -s 2>\/dev\/null | head -n 80\r\n\r\n# \u91cd\u8981\uff1a\u4eca\u3053\u306e\u77ac\u9593\u306b\u300c\u30ed\u30b0\u300d\u3092\u9000\u907f\uff08\u8a3c\u8de1\uff09\r\nmkdir -p \/root\/diag_$(date +%F_%H%M%S) 2>\/dev\/null\r\ndmesg -T > \/root\/diag_*\/dmesg.txt 2>\/dev\/null\r\njournalctl -k > \/root\/diag_*\/journal-kernel.txt 2>\/dev\/null<\/pre>\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    
\r\n      
\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<\/h3>\r\n