{"id":156629,"date":"2019-09-03T09:09:14","date_gmt":"2019-09-03T01:09:14","guid":{"rendered":"https:\/\/gulass.cn\/?p=156629"},"modified":"2019-08-27T10:10:12","modified_gmt":"2019-08-27T02:10:12","slug":"centos7-raid5","status":"publish","type":"post","link":"https:\/\/gulass.cn\/centos7-raid5.html","title":{"rendered":"CentOS 7 \u8f6fRAID5\u8bbe\u7f6e"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td style=\"padding: 5px 12px; width: 25px; font-size: 22px; text-align: center; background: #E8E8E8; line-height: 30px; color: #999;\">\u5bfc\u8bfb<\/td>\n<td style=\"padding: 10px 10px 12px; line-height: 20px;\"><strong>RAID\u662f\u82f1\u6587Redundant Array of Independent Disks\u7684\u7f29\u5199\uff0c\u4e2d\u6587\u7b80\u79f0\u4e3a\u72ec\u7acb\u5197\u4f59\u78c1\u76d8\u9635\u5217\u3002<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div   id="7zif2anh9s"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>RAID\u7684\u8bbe\u7f6e\u65b9\u6cd5<\/strong><\/div>\n<div   id="7zif2anh9s"    style=\"margin-top:2em;margin-bottom:1em\"><span style=\"color:#1E1E1E;letter-spacing: 2px;border-left:#FF3030 3px solid;border-right:#FF3030 3px solid;padding-left: 8px;padding-right:8px;font-size: 12pt\"><strong>\u4e00\u3001RAID\u78c1\u76d8\u9635\u5217\u4ecb\u7ecd<\/strong><\/span><\/div>\n<p>RAID\u662f\u82f1\u6587Redundant Array of Independent Disks\u7684\u7f29\u5199\uff0c\u4e2d\u6587\u7b80\u79f0\u4e3a\u72ec\u7acb\u5197\u4f59\u78c1\u76d8\u9635\u5217\u3002RAID\u662f\u628a\u591a\u5757\u72ec\u7acb\u7684\u7269\u7406\u786c\u76d8\u6309\u4e0d\u540c\u7684\u65b9\u5f0f\u7ec4\u5408\u8d77\u6765\u5f62\u6210\u4e00\u4e2a\u786c\u76d8\u7ec4\uff08\u903b\u8f91\u786c\u76d8\uff09\uff0c\u4ece\u800c\u63d0\u4f9b\u6bd4\u5355\u4e2a\u786c\u76d8\u66f4\u9ad8\u7684\u5b58\u50a8\u6027\u80fd\u548c\u63d0\u4f9b\u6570\u636e\u5907\u4efd\u6280\u672f\u7ec4\u6210\u78c1\u76d8\u9635\u5217\u7684\u4e0d\u540c\u65b9\u5f0f\u79f0\u4e3aRAID\u7ea7\u522b\uff08RAID Levels\uff09\uff0c\u5e38\u7528\u7684RAID\u7ea7\u522b\u6709\u4ee5\u4e0b\u51e0\u79cd: RAIDO\uff0cRAID1\uff0cRAID5\uff0cRAID6\uff0cRAID1+0\u7b49<\/p>\n<div   id="7zif2anh9s"    style=\"margin-top:2em;margin-bottom:1em\"><span style=\"color:#1E1E1E;letter-spacing: 2px;border-left:#FF3030 3px solid;border-right:#FF3030 3px solid;padding-left: 8px;padding-right:8px;font-size: 12pt\"><strong>\u4e8c\u3001RAID 5\u78c1\u76d8\u9635\u5217<\/strong><\/span><\/div>\n<p>RAID 5\u78c1\u76d8\u9635\u5217\u7531N\uff08N&gt;=3\uff09\u5757\u76d8\u7ec4\u6210\u9635\u5217\uff0c\u4e00\u4efd\u6570\u636e\u4ea7\u751fN-1\u4e2a\u6761\u5e26\uff0c\u540c\u65f6\u8fd8\u67091\u4efd\u6821\u9a8c\u6570\u636e\u5171N\u4efd\u6570\u636e\u5728N\u5757\u76d8\u4e0a\u5faa\u73af\u5747\u8861\u5b58\u50a8<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-156634\" src=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/9d7b041c3bf08866166f7e3157b97648.png\" alt=\"\" width=\"556\" height=\"254\" srcset=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/9d7b041c3bf08866166f7e3157b97648.png 556w, https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/9d7b041c3bf08866166f7e3157b97648-300x137.png 300w\" sizes=\"auto, (max-width: 556px) 100vw, 556px\" \/><br \/>\nN\u5757\u76d8\u540c\u65f6\u8bfb\u5199\uff0c\u8bfb\u6027\u80fd\u5f88\u9ad8\uff0c\u4f46\u7531\u4e8e\u6709\u6821\u9a8c\u673a\u5236\u7684\u95ee\u9898\uff0c\u5199\u6027\u80fd\u76f8\u5bf9\u4e0d\u9ad8\u3002\u78c1\u76d8\u4e3a\uff08N-1\uff09\/N\uff0c\u53ef\u9760\u6027\u9ad8\uff0c\u5141\u8bb8\u574f1\u5757\u76d8\uff0c\u4e0d\u5f71\u54cd\u6240\u6709\u6570\u636e\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-156631\" src=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/3b1e85aef80b5740c831b4d366cba024.png\" alt=\"\" width=\"556\" height=\"238\" srcset=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/3b1e85aef80b5740c831b4d366cba024.png 556w, https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/3b1e85aef80b5740c831b4d366cba024-300x128.png 300w\" sizes=\"auto, (max-width: 556px) 100vw, 556px\" \/><\/p>\n<p>\u5b9e\u9a8c\u6b65\u9aa4\u73af\u5883\u51c6\u5907\uff1a<br \/>\n1.\u51c6\u5907\u4e09\u4e2a\u4ee5\u4e0a\u5e76\u4e14\u5927\u5c0f\u76f8\u540c\u7684\u786c\u76d8\uff0c\u505a\u597d\u5206\u533a\uff08fd\uff09\uff0c\u68c0\u67e5\u662f\u5426\u5b89\u88c5\u4e86mdadm\u5b89\u88c5\u5305<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-156636\" src=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/27d1ba65295110ef66c079235417a043.png\" alt=\"\" width=\"379\" height=\"47\" srcset=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/27d1ba65295110ef66c079235417a043.png 379w, https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/27d1ba65295110ef66c079235417a043-300x37.png 300w\" sizes=\"auto, (max-width: 379px) 100vw, 379px\" \/><br \/>\n2.\u547d\u4ee4\uff1a<span style=\"padding: 4px 8px; font-size: 12px; border-radius: 3px; color: #c7254e; background-color: #f9f2f4;\">mdadm -C -v \/dev\/md5 -l5 -n3 \/dev\/sd[b-d]1 -x1 \/dev\/sde1<\/span><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-156638\" src=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/1834e66c661954edf3ab2bc1b8f4e19c.png\" alt=\"\" width=\"834\" height=\"159\" srcset=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/1834e66c661954edf3ab2bc1b8f4e19c.png 834w, https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/1834e66c661954edf3ab2bc1b8f4e19c-300x57.png 300w, https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/1834e66c661954edf3ab2bc1b8f4e19c-768x146.png 768w\" sizes=\"auto, (max-width: 834px) 100vw, 834px\" \/><br \/>\n3.\u67e5\u770b\u540c\u6b65\u8fdb\u7a0b \u547d\u4ee4\uff1a<span style=\"padding: 4px 8px; font-size: 12px; border-radius: 3px; color: #c7254e; background-color: #f9f2f4;\">cat \/proc\/mdstat<\/span><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-156637\" src=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/061b7b725cf1f1fa50bcfb1344bef9a1.png\" alt=\"\" width=\"831\" height=\"166\" srcset=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/061b7b725cf1f1fa50bcfb1344bef9a1.png 831w, https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/061b7b725cf1f1fa50bcfb1344bef9a1-300x60.png 300w, https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/061b7b725cf1f1fa50bcfb1344bef9a1-768x153.png 768w\" sizes=\"auto, (max-width: 831px) 100vw, 831px\" \/><br \/>\n4.\u67e5\u770b\u78c1\u76d8\u4f7f\u7528\u60c5\u51b5 \u547d\u4ee4<span style=\"padding: 4px 8px; font-size: 12px; border-radius: 3px; color: #c7254e; background-color: #f9f2f4;\"> mdadm -D \/dev\/md5<\/span><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-156639\" src=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/a657baa58271dba2a0048f8e1e706f80.png\" alt=\"\" width=\"542\" height=\"338\" srcset=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/a657baa58271dba2a0048f8e1e706f80.png 542w, https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/a657baa58271dba2a0048f8e1e706f80-300x187.png 300w\" sizes=\"auto, (max-width: 542px) 100vw, 542px\" \/><br \/>\n5\u6267\u884c<span style=\"padding: 4px 8px; font-size: 12px; border-radius: 3px; color: #c7254e; background-color: #f9f2f4;\">\u201cmdadm -f \/dev\/md5 \/dev\/sdb1\u201d<\/span>\u547d\u4ee4\u5378\u6389\u78c1\u76d8\u6765\u6a21\u62df\u4e00\u5757\u78c1\u76d8\u6302\u4e86\u3002<br \/>\n\u53ef\u4ee5\u770b\u5230\u6b63\u5728\u66ff\u6362\uff0csdb1\u5df2\u7ecf\u5931\u6548<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-156640\" src=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/ac18f0ed52dd072e29f042ac89b0518c.png\" alt=\"\" width=\"754\" height=\"260\" srcset=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/ac18f0ed52dd072e29f042ac89b0518c.png 754w, https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/ac18f0ed52dd072e29f042ac89b0518c-300x103.png 300w\" sizes=\"auto, (max-width: 754px) 100vw, 754px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-156635\" src=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/21d8c63e9cc9eacd160de5b10a54d285.png\" alt=\"\" width=\"780\" height=\"371\" srcset=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/21d8c63e9cc9eacd160de5b10a54d285.png 780w, https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/21d8c63e9cc9eacd160de5b10a54d285-300x143.png 300w, https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/21d8c63e9cc9eacd160de5b10a54d285-768x365.png 768w\" sizes=\"auto, (max-width: 780px) 100vw, 780px\" \/><br \/>\n6.\u7528<span style=\"padding: 4px 8px; font-size: 12px; border-radius: 3px; color: #c7254e; background-color: #f9f2f4;\">mdadm \/dev\/md5 \/ -r \/dev\/sdb1<\/span>\u79fb\u9664 \u7136\u540e\u628a<span style=\"padding: 4px 8px; font-size: 12px; border-radius: 3px; color: #c7254e; background-color: #f9f2f4;\">\/dev\/sde1 mdadm \/dev\/md5 --add \/dev\/sdf1<\/span>\u589e\u52a0\u4e3a\u70ed\u5907\u76d8<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-156632\" src=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/8fa9c9c7d6febe0d206c3383c76f37b8.png\" alt=\"\" width=\"750\" height=\"150\" srcset=\"https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/8fa9c9c7d6febe0d206c3383c76f37b8.png 750w, https:\/\/gulass.cn\/wp-content\/uploads\/2019\/08\/8fa9c9c7d6febe0d206c3383c76f37b8-300x60.png 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><br \/>\n7.\u683c\u5f0f\u5316\uff0c\u6302\u8f7d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>RAID\u662f\u82f1\u6587Redundant Array of Independent Disks\u7684\u7f29\u5199\uff0c\u4e2d\u6587\u7b80\u79f0\u4e3a\u72ec\u7acb\u5197 [&hellip;]<\/p>\n","protected":false},"author":1890,"featured_media":156644,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-156629","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/gulass.cn\/wp-json\/wp\/v2\/posts\/156629","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gulass.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gulass.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gulass.cn\/wp-json\/wp\/v2\/users\/1890"}],"replies":[{"embeddable":true,"href":"https:\/\/gulass.cn\/wp-json\/wp\/v2\/comments?post=156629"}],"version-history":[{"count":5,"href":"https:\/\/gulass.cn\/wp-json\/wp\/v2\/posts\/156629\/revisions"}],"predecessor-version":[{"id":157299,"href":"https:\/\/gulass.cn\/wp-json\/wp\/v2\/posts\/156629\/revisions\/157299"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gulass.cn\/wp-json\/wp\/v2\/media\/156644"}],"wp:attachment":[{"href":"https:\/\/gulass.cn\/wp-json\/wp\/v2\/media?parent=156629"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gulass.cn\/wp-json\/wp\/v2\/categories?post=156629"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gulass.cn\/wp-json\/wp\/v2\/tags?post=156629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}