{"id":577,"date":"2020-12-26T13:49:41","date_gmt":"2020-12-26T04:49:41","guid":{"rendered":"https:\/\/eng.miteel.net\/?page_id=577"},"modified":"2024-07-23T10:03:51","modified_gmt":"2024-07-23T01:03:51","slug":"%e3%82%bd%e3%83%95%e3%83%88raid%e6%a7%8b%e6%88%90","status":"publish","type":"page","link":"https:\/\/eng.miteel.net\/?page_id=577","title":{"rendered":"\u30bd\u30d5\u30c8RAID\u69cb\u6210"},"content":{"rendered":"\n<p>\u3010RAID5 \u4f5c\u6210\u3011<\/p>\n\n\n\n<p>\u30fb\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u5358\u4f4d\u3067RAID\u5316\u3059\u308b\u5834\u5408<\/p>\n\n\n\n<p>\u3000\u7269\u7406\u30c7\u30a3\u30b9\u30af\u306f\u3001\u4e8b\u524d\u306b fdisk \u3067\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\u3057\u3066\u304a\u304f<br>\u3000\u203b\u3000\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30bf\u30a4\u30d7\u30b3\u30fc\u30c9\u306f\u3000fd<\/p>\n\n\n\n<p>\u30fb\u30c7\u30a3\u30b9\u30af\u5358\u4f4d\u3067RAID\u5316\u3059\u308b\u5834\u5408<\/p>\n\n\n\n<p>\u3000\u7279\u306b\u7528\u610f\u3059\u308b\u3053\u3068\u306f\u306a\u3044<\/p>\n\n\n\n<p>\u203b\u3000\u672c\u8aac\u660e\u3067\u306f\u3001 RAID LEVEL \u3092\u30005<br>\u4f7f\u7528\u3059\u308b\u7269\u7406DISK\u30c9\u30e9\u30a4\u30d6\u3092\u3000\/dev\/sda \/dev\/sdb \/dev\/sdc \/dev\/sde<br>RAID\u30c9\u30e9\u30a4\u30d6\u306e\u30c7\u30d0\u30a4\u30b9\u30ce\u30fc\u30c9\u3092\u3000\/dev\/md0<br>\u3068\u3057\u3066\u89e3\u8aac\u3057\u3066\u3044\u308b<\/p>\n\n\n\n<p>\u3000\u203b\u3000\u904e\u53bb\u306eLinux\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u3001RAID\u3067\u4f7f\u7528\u3059\u308bDISK\u30c7\u30d0\u30a4\u30b9\u30ce\u30fc\u30c9\u3092<br>\u3000\u3000\u3000\u5404\u3005RAID\u306b\u53c2\u52a0\u3055\u305b\u308b\u624b\u9806\u304c\u5fc5\u8981\u3067\u3042\u3063\u305f\u3089\u3057\u3044\u304c\u3001\u73fe\u30d0\u30fc\u30b8\u30e7\u30f3<br>\u3000\u3000\u3000\u3067\u306f\u4e0d\u8981\u3068\u306a\u3063\u3066\u3044\u308b<\/p>\n\n\n\n<p>\u3010RAID\u306e\u4f5c\u6210\u3068\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u4f5c\u6210\u3011<\/p>\n\n\n\n<p>\u30fb\u4ee5\u4e0b\u306e\u547d\u4ee4\u3067\u4f5c\u6210\u3067\u304d\u308b<\/p>\n\n\n\n<pre class=\"wp-block-verse\"><code>mdadm --create --verbose \/dev\/md0 --level=5 --raid-devices=4 \/dev\/sda \/dev\/sdb \/dev\/sdc \/dev\/sdd<\/code><\/pre>\n\n\n\n<p>\u203b RAID1(Mirror)\u306e\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3059\u308b<\/p>\n\n\n\n<pre class=\"wp-block-verse\"><code>mdadm --create \/dev\/md0 --level=1 --raid-devices=2 \/dev\/sdb \/dev\/sdc<\/code><\/pre>\n\n\n\n<p>\u203b\u3000RAID\u306e\u4f5c\u6210\u6642(\u30bf\u30a4\u30d7\u306b\u3082\u3088\u308b\u304c)\u306f\u3000\/proc\/mdstat\u3000\u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3057\u3001\u4f5c\u6210\u304c\u5b8c\u4e86\u3000\u3000\u3000\u3059\u308b\u307e\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u69cb\u7bc9\u7b49\u306e\u4f5c\u696d\u306f\u63a7\u3048\u305f\u307b\u3046\u304c\u826f\u3044\u6a21\u69d8<\/p>\n\n\n\n<p>\u30fbRAID\u4f5c\u6210\u5f8c\u306b\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u4f5c\u6210<br>mkfs -t ext4 \/dev\/md0<\/p>\n\n\n\n<p>\u203b\u3000\u3053\u308c\u3089\u304c\u7d42\u4e86\u3057\u3066\u3044\u308c\u3070\u3000\/dev\/md0 \u306f\u666e\u901a\u306e\u7269\u7406DISK\u540c\u69d8\u306b mount \u3067\u304d\u308b<\/p>\n\n\n\n<p>\u3010RAID\u306e\u52d5\u4f5c\u78ba\u8a8d\u3011<\/p>\n\n\n\n<p>\u30fbRAID\u306e\u52d5\u4f5c\u306f\u4ee5\u4e0b\u306e\u5185\u5bb9\u3092\u53c2\u7167\u3059\u308b\u3053\u3068\u3067\u5224\u308b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cat \/proc\/mdstat<\/code><\/pre>\n\n\n\n<p>\u203b\u3000\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u3044\u308b\u5834\u5408\u306e\u8868\u793a\u4f8b<\/p>\n\n\n\n<p>md0 : active (auto-read-only) raid5 sda[0] sdd[4] sdc[5] sdb[1]<br>90891264 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4\/4] [UUUU]<\/p>\n\n\n\n<p>\u203b\u3000\u4e0a\u8a18\u306e\u8868\u793a\u4f8b\u306f \u672amount\u72b6\u614b\u306e\u3082\u306e\u3000mount\u3059\u308b\u3068(auto-read-only)\u306f\u6d88\u3048\u308b<\/p>\n\n\n\n<p>\u203b\u3000\u7570\u5e38\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u4e0a\u8a18\u306e\u3000[UUUU] \u306e\u90e8\u5206\u304c\u3000[UU_U] \u306e\u69d8\u306b\u306a\u308a\u3001\u52a3\u5316\u3092\u793a\u5506<br>\u3000\u3000\u3000\u3059\u308b<\/p>\n\n\n\n<p>\u3010RAID\u306b\u554f\u984c\u304c\u8d77\u3053\u3063\u305f\u5834\u5408\u3011<\/p>\n\n\n\n<p>\u30fb\u3000cat \/proc\/mdstat \u306e\u5185\u5bb9\u304c\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u52a3\u5316\u304c\u793a\u5506\u3055\u308c\u308b<\/p>\n\n\n\n<p>md0 : active raid5 sda[0] sdd[4] sdb[1]<br>90891264 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4\/3] [UU_U]<\/p>\n\n\n\n<p>\u203b\u3000\u4e0a\u8a18\u4f8b\u3067\u306f\u3000\/dev\/sdc\u3000\u306b\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u30c7\u30d0\u30a4\u30b9\u306e\u8a8d\u8b58\u304b\u3089\u5916\u308c\u3000[UU_U]\u3000\u306e<br>\u3000\u3000\u3000\u69d8\u306b\u52a3\u5316\u304c\u793a\u5506\u3055\u308c\u3066\u3044\u308b<\/p>\n\n\n\n<p>\u3010RAID\u306e\u5fa9\u65e7\u3011<\/p>\n\n\n\n<p>\u30fb\u3000\u969c\u5bb3\u30c7\u30a3\u30b9\u30af\u3092\u4ea4\u63db\u3057\u305f\u3042\u3068\u3001\u4ee5\u4e0b\u306e\u547d\u4ee4\u3067\u3001\u30ea\u30ab\u30d0\u30ea\u304c\u59cb\u307e\u308b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mdadm --add \/dev\/md0 \/dev\/sdc<\/code><\/pre>\n\n\n\n<p>\u203b\u3000\u969c\u5bb3\u5fa9\u65e7\u4e2d\u306f \/proc\/mdstat \u304c\u4ee5\u4e0b\u306e\u69d8\u306b\u306a\u308a\u3001\u5fa9\u65e7\u5b8c\u4e86\u307e\u3067\u306e\u6642\u9593\u304c\u5224\u308b<\/p>\n\n\n\n<p>md0 : active raid5 sdc[5] sda[0] sdd[4] sdb[1]<br>90891264 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4\/3] [UU_U]<br>[&gt;\u2026\u2026\u2026\u2026\u2026\u2026..] recovery = 0.0% (10112\/30297088) finish=199.3min speed=2528K\/sec<\/p>\n\n\n\n<p>\u3010RAID\u306e\u505c\u6b62\u3011<\/p>\n\n\n\n<p>\u30fb\u4ee5\u4e0b\u306e\u547d\u4ee4\u3067\u505c\u6b62\u3059\u308b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mdadm --stop \/dev\/md0<\/code><\/pre>\n\n\n\n<p>\u203b\u3000\u505c\u6b62\u306e\u524d\u306b\u3001unmount \u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/p>\n\n\n\n<p>\u3010RAID\u306e\u518d\u958b\u3011<\/p>\n\n\n\n<p>\u30fb\u4ee5\u4e0b\u306e\u547d\u4ee4\u3067\u518d\u958b\u3067\u304d\u308b<\/p>\n\n\n\n<p>mdadm &#8211;assemble \/dev\/md0 \/dev\/sda \/dev\/sdb \/dev\/sdc \/dev\/sdd<\/p>\n\n\n\n<p>\u203b\u3000\u969c\u5bb3\u767a\u751f\u3057\u305f\u30c9\u30e9\u30a4\u30d6\u306e\u4ee3\u66ff\u3048\u304c\u306a\u3044\u5834\u5408\u306b\u3001\u52a3\u5316\u3057\u305f\u72b6\u614b\u3067\u5185\u5bb9\u3092<br>\u3000\u3000\u3000\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3059\u308b\u7b49\u3057\u305f\u3044\u5834\u5408\u306e\u547d\u4ee4\u306f\u4ee5\u4e0b\u306e\u901a\u308a<\/p>\n\n\n\n<p>mdadm &#8211;assemble &#8211;run \/dev\/md0 \/dev\/sda \/dev\/sdb \/dev\/sdd<\/p>\n\n\n\n<p>\u3010\u4f7f\u7528\u4f8b\u3011<\/p>\n\n\n\n<p>\u30fbRAID0 (\u30b9\u30c8\u30e9\u30a4\u30d7)\u4f5c\u6210<\/p>\n\n\n\n<p>mdadm &#8211;create &#8211;verbose \/dev\/md0 &#8211;level=0 &#8211;raid-devices=2 \/dev\/sda \/dev\/sdb<\/p>\n\n\n\n<p>\u3010\u610f\u3068\u305b\u305aRAID\u304b\u3089DISK\u304c\u5916\u308c\u305f\u5834\u5408\u3011<BR><BR>\n<code>sudo mdadm --manage \/dev\/md0 --add \/dev\/sdc<\/code><BR>\n\u3053\u308c\u3067\u4e0a\u624b\u304f\u3086\u3051\u3070\u4ee5\u4e0b\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u5e30\u308b<BR>\nmdadm: re-added \/dev\/sdc<BR>\n<BR><BR>\n<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>\u6052\u4e45\u7684\u306b\u30de\u30a6\u30f3\u30c8\u3059\u308b\u969b\u306e\u6ce8\u610f\u70b9<\/p>\n\n\n\n<p>\/dev\/md127 \u7b49\u306e\u540d\u79f0\u3067\/etc\/fstab\u306b\u8a18\u8ff0\u3059\u308b\u3068\u3001OS\u8d77\u52d5\u306e\u30c8\u30e9\u30d6\u30eb\u306b\u3064\u306a\u304c\u308b\u4e8b\u304c\u3042\u308b<\/p>\n\n\n\n<p><p># blkid<BR>\n<code>\/dev\/md0p1: UUID=\"f11526c0-5957-4828-8b83-4a2d088c1fa6\" BLOCK_SIZE=\"4096\" TYPE=\"ext2\" PARTUUID=\"b17c6a98-01\"<\/code><\/p>\n<p>fstab\u306e\u4f8b\u306f\u4ee5\u4e0b\u306e\u901a\u308a<BR><code>\n\/dev\/disk\/by-uuid\/f11526c0-5957-4828-8b83-4a2d088c1fa6 \/usr2 ext4 defaults 0 1\n<\/code><BR>(PARTUUID\u306e\u5834\u5408)<BR><code>\/dev\/disk\/by-partuuid\/a8fda7fc-01 \/usr2 ext4 defaults 0 1<\/code><BR><\/p><\/p>\n\n\n\n<p>blkid \u306b\u3066\u3001UUID\u3092\u78ba\u8a8d\u3057\u3066\u3001\u3053\u306eUUID\u3092\u4f7f\u7528\u3057\u3066\u30de\u30a6\u30f3\u30c8\u3059\u308b\u4e8b\u3092\u63a8\u5968(PARTUUID\u3092\u4f7f\u3046)<\/p>\n\n\n\n<p>\u8d77\u52d5\u6642\u306bRAID\u304c\u3046\u307e\u304f\u52d5\u4f5c\u3057\u306a\u3044\u5834\u5408\u306f\u3001UUID\u304c\u7121\u52b9\u3068\u306a\u308a\u3001\u30b9\u30bf\u30c3\u30af\u3092\u56de\u907f\u3067\u304d\u308b<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3010RAID5 \u4f5c\u6210\u3011 \u30fb\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u5358\u4f4d\u3067RAID\u5316\u3059\u308b\u5834\u5408 \u3000\u7269\u7406\u30c7\u30a3\u30b9\u30af\u306f\u3001\u4e8b\u524d\u306b fdisk \u3067\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\u3057\u3066\u304a\u304f\u3000\u203b\u3000\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30bf\u30a4\u30d7\u30b3\u30fc\u30c9\u306f\u3000fd \u30fb\u30c7\u30a3\u30b9\u30af\u5358\u4f4d\u3067RAID\u5316\u3059\u308b\u5834\u5408 \u3000\u7279\u306b\u7528\u610f &hellip; <a href=\"https:\/\/eng.miteel.net\/?page_id=577\" class=\"more-link\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">\u30bd\u30d5\u30c8RAID\u69cb\u6210<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"parent":557,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-577","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/eng.miteel.net\/index.php?rest_route=\/wp\/v2\/pages\/577","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eng.miteel.net\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/eng.miteel.net\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/eng.miteel.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/eng.miteel.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=577"}],"version-history":[{"count":14,"href":"https:\/\/eng.miteel.net\/index.php?rest_route=\/wp\/v2\/pages\/577\/revisions"}],"predecessor-version":[{"id":1149,"href":"https:\/\/eng.miteel.net\/index.php?rest_route=\/wp\/v2\/pages\/577\/revisions\/1149"}],"up":[{"embeddable":true,"href":"https:\/\/eng.miteel.net\/index.php?rest_route=\/wp\/v2\/pages\/557"}],"wp:attachment":[{"href":"https:\/\/eng.miteel.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}