{"id":303,"date":"2023-06-30T04:36:41","date_gmt":"2024-02-18T22:29:30","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/"},"modified":"2025-08-01T20:15:27","modified_gmt":"2025-08-01T12:15:27","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/","title":{"rendered":"Ubuntu 22.04\u7cfb\u7edf\u4e0bmdadm\u7ba1\u7406RAID\u9635\u5217\u5b8c\u5168\u6307\u5357"},"content":{"rendered":"<h3>\u4ecb\u7ecd<\/h3>\n<p>\u5728Linux\u4e2d\uff0cRAID\u9635\u5217\u901a\u8fc7\u5c06\u5355\u4e2a\u78c1\u76d8\u4ee5\u7279\u5b9a\u914d\u7f6e\u7ec4\u5408\u6210\u865a\u62df\u5b58\u50a8\u8bbe\u5907\uff0c\u63d0\u4f9b\u4e86\u589e\u52a0\u7684\u6027\u80fd\u548c\u5197\u4f59\u3002mdadm\u5b9e\u7528\u7a0b\u5e8f\u7528\u4e8e\u521b\u5efa\u548c\u7ba1\u7406\u8f6f\u4ef6RAID\u9635\u5217\u3002<\/p>\n<p>\u5728\u4e4b\u524d\u7684\u6307\u5357\u4e2d\uff0c\u6211\u4eec\u4ecb\u7ecd\u4e86\u5982\u4f55\u5728Ubuntu 22.04\u4e0a\u4f7f\u7528mdadm\u521b\u5efaRAID\u9635\u5217\u3002\u5728\u672c\u6307\u5357\u4e2d\uff0c\u6211\u4eec\u5c06\u6f14\u793a\u5982\u4f55\u5728Ubuntu 22.04\u670d\u52a1\u5668\u4e0a\u7ba1\u7406RAID\u9635\u5217\u3002<\/p>\n<h2>\u5148\u51b3\u6761\u4ef6<\/h2>\n<p>\u8981\u6309\u7167\u8fd9\u4e2a\u6307\u5357\uff0c\u60a8\u9700\u8981\u8bbf\u95ee\u4e00\u4e2a\u975eroot\u7684sudo\u7528\u6237\u3002\u60a8\u53ef\u4ee5\u6309\u7167\u6211\u4eec\u7684Ubuntu 22.04\u521d\u59cb\u670d\u52a1\u5668\u8bbe\u7f6e\u6307\u5357\u6765\u8bbe\u7f6e\u4e00\u4e2a\u9002\u5f53\u7684\u7528\u6237\u3002<\/p>\n<p>\u5982\u524d\u6240\u8ff0\uff0c\u672c\u6307\u5357\u5c06\u6db5\u76d6RAID\u9635\u5217\u7ba1\u7406\u3002\u5728\u5f00\u59cb\u672c\u6307\u5357\u4e4b\u524d\uff0c\u8bf7\u6309\u7167\u6211\u4eec\u5728Ubuntu 22.04\u4e0a\u4f7f\u7528mdadm\u521b\u5efaRAID\u9635\u5217\u7684\u6307\u5357\u6765\u521b\u5efa\u4e00\u4e2a\u6216\u591a\u4e2a\u9635\u5217\u3002\u672c\u6307\u5357\u5c06\u5047\u8bbe\u60a8\u5df2\u7ecf\u62e5\u6709\u4e00\u4e2a\u6216\u591a\u4e2a\u5f85\u64cd\u4f5c\u7684\u9635\u5217\u3002<\/p>\n<div class=\"post-conf-info\">\n<p class=\"post-conf-desc\">\u4fe1\u606f\uff1a\u7531\u4e8e\u865a\u62df\u79c1\u6709\u670d\u52a1\u5668\u4e0aRAID\u8bbe\u7f6e\u7684\u6548\u7387\u4f4e\u4e0b\uff0c\u6211\u4eec\u4e0d\u5efa\u8bae\u5728Silicon Cloud droplets\u4e0a\u90e8\u7f72RAID\u8bbe\u7f6e\u3002\u6570\u636e\u4e2d\u5fc3\u78c1\u76d8\u590d\u5236\u7684\u6548\u7387\u4f7f\u5f97RAID\u7684\u597d\u5904\u76f8\u5bf9\u4e8e\u88f8\u91d1\u5c5e\u786c\u4ef6\u800c\u8a00\u5fae\u4e0d\u8db3\u9053\u3002\u672c\u6559\u7a0b\u65e8\u5728\u6210\u4e3a\u4f20\u7edfRAID\u8bbe\u7f6e\u7684\u53c2\u8003\u3002<\/p>\n<\/div>\n<h2>\u67e5\u8be2\u6709\u5173RAID\u8bbe\u5907\u7684\u4fe1\u606f<\/h2>\n<p>\u826f\u597d\u7ba1\u7406\u6700\u4e3a\u57fa\u672c\u7684\u8981\u6c42\u4e4b\u4e00\u662f\u80fd\u591f\u627e\u5230\u6709\u5173\u9635\u5217\u7ed3\u6784\u3001\u7ec4\u4ef6\u8bbe\u5907\u548c\u5f53\u524d\u72b6\u6001\u7684\u4fe1\u606f\u3002<\/p>\n<p>\u8981\u83b7\u53d6\u6709\u5173RAID\u8bbe\u5907\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u4f7f\u7528mdadm\u547d\u4ee4\u4e2d\u7684-D\u6216&#8211;detail\u9009\u9879\uff0c\u4f20\u9012RAID\u8bbe\u5907\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">-D<\/span> \/dev\/<mark>md0<\/mark><\/li>\n<\/ol>\n<p>\u5c06\u4f1a\u663e\u793a\u6709\u5173\u6570\u7ec4\u7684\u91cd\u8981\u4fe1\u606f\u3002<\/p>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\n<pre class=\"post-pre\"><code>\/dev\/md0: \r\nVersion : 1.2\r\nCreation Time : Thu Sep 29 17:07:10 2022\r\nRaid Level : raid10\r\nArray Size : 209582080 (199.87 GiB 214.61 GB)\r\nUsed Dev Size : 104791040 (99.94 GiB 107.31 GB)\r\nRaid Devices : 4\r\nTotal Devices : 4\r\nPersistence : Superblock is persistent\r\nUpdate Time : Thu Sep 29 17:08:24 2022\r\nState : clean, resyncing\r\nActive Devices : 4\r\nWorking Devices : 4\r\nFailed Devices : 0\r\nSpare Devices : 0\r\nLayout : near=2\r\nChunk Size : 512K\r\nConsistency Policy : resync\r\nName : raid2:0 (local to host raid2)\r\nUUID : 8069bcc7:72e7b49f:fba1c780:560a85e0\r\nEvents : 35\r\n\r\nNumber   Major   Minor   RaidDevice State\r\n   0       8       0        0      active sync set-A   \/dev\/sda\r\n   1       8      16        1      active sync set-B   \/dev\/sdb\r\n   2       8      32        2      active sync set-A   \/dev\/sdc\r\n   3       8      48        3      active sync set-B   \/dev\/sdd<\/code><\/pre>\n<\/div>\n<p>\u8f93\u51fa\u663e\u793a\u4e86RAID\u7ea7\u522b\u3001\u9635\u5217\u5927\u5c0f\u3001\u5404\u4e2a\u90e8\u4ef6\u7684\u5065\u5eb7\u72b6\u51b5\u3001\u9635\u5217\u7684UUID\u4ee5\u53ca\u7ec4\u6210\u8bbe\u5907\u53ca\u5176\u89d2\u8272\u3002<\/p>\n<p>\u4e3a\u4e86\u5411\/dev\/mdadm\/mdadm.conf\u6587\u4ef6\u4e2d\u6dfb\u52a0\u6709\u5173\u6570\u7ec4\u7684\u7f29\u7565\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528&#8211;brief\u6216-b\u6807\u5fd7\u4ee5\u8be6\u60c5\u89c6\u56fe\u4f20\u9012\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">-Db<\/span> \/dev\/<mark>md0<\/mark><\/li>\n<\/ol>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\n<pre class=\"post-pre\"><code>ARRAY \/dev\/md0 metadata=1.2 name=mdadmwrite:0 UUID=8069bcc7:72e7b49f:fba1c780:560a85e0<\/code><\/pre>\n<\/div>\n<p>\u4e3a\u4e86\u5feb\u901f\u83b7\u5f97\u53ef\u8bfb\u7684RAID\u8bbe\u5907\u6458\u8981\uff0c\u8bf7\u4f7f\u7528-Q\u9009\u9879\u6765\u67e5\u8be2\u5b83\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">-Q<\/span> \/dev\/<mark>md0<\/mark><\/li>\n<\/ol>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\n<pre class=\"post-pre\"><code>\/dev\/md0: 199.88GiB raid10 4 devices, 0 spares. Use mdadm --detail for more detail.<\/code><\/pre>\n<\/div>\n<p>\u8fd9\u53ef\u4ee5\u7528\u6765\u4e00\u76ee\u4e86\u7136\u5730\u67e5\u627e\u5173\u4e8eRAID\u8bbe\u5907\u7684\u91cd\u8981\u4fe1\u606f\u3002<\/p>\n<h2>\u83b7\u53d6\u6709\u5173\u7ec4\u4ef6\u8bbe\u5907\u7684\u4fe1\u606f<\/h2>\n<p>\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528mdadm\u6765\u67e5\u8be2\u5355\u4e2a\u7ec4\u4ef6\u8bbe\u5907\u3002<\/p>\n<p>\u5f53\u4e0e\u7ec4\u4ef6\u8bbe\u5907\u4e00\u8d77\u4f7f\u7528\u65f6\uff0c-Q\u9009\u9879\u5c06\u544a\u8bc9\u60a8\u5b83\u6240\u5c5e\u7684\u6570\u7ec4\u4ee5\u53ca\u5176\u89d2\u8272\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">-Q<\/span> \/dev\/<mark>sdc<\/mark><\/li>\n<\/ol>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\n<pre class=\"post-pre\"><code>\/dev\/sdc: is not an md array\r\n\/dev\/sdc: device 2 in 4 device active raid10 \/dev\/md0. Use mdadm --examine for more detail.<\/code><\/pre>\n<\/div>\n<p>\u60a8\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528&#8221;-E&#8221;\u6216&#8221;&#8211;examine&#8221;\u9009\u9879\u83b7\u5f97\u66f4\u8be6\u7ec6\u7684\u4fe1\u606f\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">-E<\/span> \/dev\/<mark>sdc<\/mark><\/li>\n<\/ol>\n<h2>\u68c0\u67e5RAID\u8bbe\u5907\u8be6\u7ec6\u4fe1\u606f<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528mdadm\u547d\u4ee4\u663e\u793a\u7684RAID\u8bbe\u5907\u8be6\u7ec6\u4fe1\u606f\uff1a<\/p>\n<pre class=\"post-pre\"><code>\/dev\/sdc: Magic : a92b4efc\r\nVersion : 1.2\r\nFeature Map : 0x0\r\nArray UUID : 8069bcc7:72e7b49f:fba1c780:560a85e0\r\nName : RAID2204:0 (local to host RAID2204)\r\nCreation Time : Wed Oct 5 15:56:03 2022\r\nRaid Level : raid10\r\nRaid Devices : 4\r\nAvail Dev Size : 209582080 sectors (99.94 GiB 107.31 GB)\r\nArray Size : 209582080 KiB (199.87 GiB 214.61 GB)\r\nData Offset : 133120 sectors\r\nSuper Offset : 8 sectors\r\nUnused Space : before=132968 sectors, after=0 sectors\r\nState : clean\r\nDevice UUID : 027f74c5:6d488509:64844c7a:add75d88\r\nUpdate Time : Wed Oct 5 16:13:57 2022\r\nBad Block Log : 512 entries available at offset 136 sectors\r\nChecksum : 98edf3ae - correct\r\nEvents : 35\r\nLayout : near=2\r\nChunk Size : 512K\r\nDevice Role : Active device 2\r\nArray State : AAAA ('A' == active, '.' == missing, 'R' == replacing)<\/code><\/pre>\n<p>\u8fd9\u4e9b\u4fe1\u606f\u4e0e\u4f7f\u7528\u6570\u7ec4\u8bbe\u5907\u7684-D\u9009\u9879\u663e\u793a\u7684\u4fe1\u606f\u76f8\u4f3c\uff0c\u4f46\u662f\u66f4\u4e13\u6ce8\u4e8e\u7ec4\u4ef6\u8bbe\u5907\u4e0e\u6570\u7ec4\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n<h2>\u9605\u8bfb\/proc\/mdstat\u4fe1\u606f<\/h2>\n<p>\u8981\u83b7\u53d6\u670d\u52a1\u5668\u4e0a\u6bcf\u4e2a\u5df2\u7ec4\u88c5\u9635\u5217\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u67e5\u770b\/proc\/mdstat\u6587\u4ef6\u3002\u8fd9\u901a\u5e38\u662f\u67e5\u627e\u7cfb\u7edf\u4e0a\u6d3b\u52a8\u9635\u5217\u5f53\u524d\u72b6\u6001\u7684\u6700\u4f73\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code>cat \/proc\/mdstat<\/code><\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n<pre class=\"post-pre\"><code>Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]\r\nmd0 : active raid10 sdd[3] sdc[2] sdb[1] sda[0]\r\n      209584128 blocks super 1.2 512K chunks 2 near-copies [4\/4] [UUUU]\r\nunused devices: &lt;none&gt;<\/code><\/pre>\n<p>\u8fd9\u91cc\u7684\u8f93\u51fa\u975e\u5e38\u7d27\u51d1\uff0c\u7528\u5f88\u5c0f\u7684\u7a7a\u95f4\u63d0\u4f9b\u4e86\u5927\u91cf\u4fe1\u606f\u3002<\/p>\n<p>\/proc\/mdstat\u662fLinux\u7cfb\u7edf\u4e2d\u7684\u4e00\u4e2a\u6587\u4ef6\uff0c\u63d0\u4f9b\u4e86\u5173\u4e8e\u8f6f\u4ef6RAID\uff08\u72ec\u7acb\u78c1\u76d8\u5197\u4f59\u9635\u5217\uff09\u8bbe\u5907\u7684\u4fe1\u606f\u3002<\/p>\n<p><strong>Personalities\uff08\u7279\u6027\uff09\u884c<\/strong>\u63cf\u8ff0\u4e86\u5185\u6838\u5f53\u524d\u652f\u6301\u7684\u4e0d\u540cRAID\u7ea7\u522b\u548c\u914d\u7f6e\u3002<\/p>\n<p>\u4ee5md0\u5f00\u5934\u7684\u884c\u63cf\u8ff0\u4e86RAID\u8bbe\u5907\u7684\u5f00\u59cb\u3002\u968f\u540e\u7f29\u8fdb\u7684\u884c\u4e5f\u63cf\u8ff0\u4e86\u8fd9\u4e2a\u8bbe\u5907\u3002<\/p>\n<pre class=\"post-pre\"><code>md0 : active raid10 sdd[3] sdc[2] sdb[1] sda[0]<\/code><\/pre>\n<p>\u9996\u5148\u8bf4\u660e\u8be5\u9635\u5217\u662f\u6d3b\u52a8\u7684\u3001\u6ca1\u6709\u6545\u969c\uff0c\u5e76\u4e14\u914d\u7f6e\u4e3aRAID 10\u3002\u63a5\u7740\u5217\u51fa\u4e86\u7528\u4e8e\u6784\u5efa\u8be5\u9635\u5217\u7684\u7ec4\u4ef6\u8bbe\u5907\u3002\u65b9\u62ec\u53f7\u4e2d\u7684\u6570\u5b57\u63cf\u8ff0\u4e86\u8bbe\u5907\u5728\u9635\u5217\u4e2d\u7684\u5f53\u524d\u89d2\u8272\u3002\u8fd9\u4f1a\u5f71\u54cd\u8bbe\u5907\u88ab\u8d4b\u4e88\u7684\u6570\u636e\u526f\u672c\u3002<\/p>\n<pre class=\"post-pre\"><code>209584128 blocks super 1.2 512K chunks 2 near-copies [4\/4] [UUUU]<\/code><\/pre>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\u663e\u793a\u7684\u7b2c\u4e8c\u884c\u63d0\u4f9b\u4e86\u865a\u62df\u8bbe\u5907\u63d0\u4f9b\u7684\u5757\u6570\uff0c\u5143\u6570\u636e\u7248\u672c\uff08\u6b64\u5904\u4e3a1.2\uff09\u4ee5\u53ca\u6570\u7ec4\u7684\u5757\u5927\u5c0f\u3002\u7531\u4e8e\u8fd9\u662f\u4e00\u4e2aRAID 10\u9635\u5217\uff0c\u5b83\u8fd8\u5305\u62ec\u6709\u5173\u9635\u5217\u5e03\u5c40\u7684\u4fe1\u606f\u3002\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u5df2\u914d\u7f6e\u4e3a\u5728\u76f8\u90bb\u5e03\u5c40\u4e2d\u5b58\u50a8\u6bcf\u4e2a\u6570\u636e\u5757\u7684\u4e24\u4e2a\u526f\u672c\u3002<\/p>\n<p>\u65b9\u62ec\u53f7\u5185\u7684\u6700\u540e\u4e24\u4e2a\u9879\u76ee\u5206\u522b\u4ee3\u8868\u4e00\u7ec4\u76ee\u524d\u53ef\u7528\u8bbe\u5907\u4e2d\u7684\u6700\u65b0\u9879\u76ee\u3002\u6570\u5b57\u65b9\u62ec\u53f7\u4e2d\u7684\u7b2c\u4e00\u4e2a\u6570\u5b57\u8868\u793a\u4e00\u7ec4\u5065\u5eb7\u9635\u5217\u7684\u5927\u5c0f\uff0c\u800c\u7b2c\u4e8c\u4e2a\u6570\u5b57\u8868\u793a\u76ee\u524d\u53ef\u7528\u7684\u8bbe\u5907\u6570\u91cf\u3002\u5176\u4ed6\u65b9\u62ec\u53f7\u5219\u662f\u5bf9\u9635\u5217\u5065\u5eb7\u72b6\u51b5\u7684\u53ef\u89c6\u5316\u6307\u793a\uff0c\u5176\u4e2dU\u4ee3\u8868\u5065\u5eb7\u8bbe\u5907\uff0c_\u4ee3\u8868\u6545\u969c\u8bbe\u5907\u3002<\/p>\n<p>\u5982\u679c\u60a8\u7684\u9635\u5217\u76ee\u524d\u6b63\u5728\u7ec4\u88c5\u6216\u6062\u590d\u4e2d\uff0c\u60a8\u53ef\u80fd\u4f1a\u6709\u53e6\u4e00\u884c\u663e\u793a\u8fdb\u5ea6\u3002<\/p>\n<pre class=\"post-pre\"><code>[&gt;....................]  resync =  0.9% (2032768\/209584128) finish=15.3min speed=225863K\/sec<\/code><\/pre>\n<p>\u8fd9\u6837\u63cf\u8ff0\u4e86\u6b63\u5728\u8fdb\u884c\u7684\u64cd\u4f5c\u4ee5\u53ca\u5f53\u524d\u8fdb\u5c55\u7684\u591a\u79cd\u65b9\u5f0f\u3002\u5b83\u8fd8\u63d0\u4f9b\u4e86\u5f53\u524d\u901f\u5ea6\u548c\u9884\u8ba1\u5b8c\u6210\u65f6\u95f4\u3002<\/p>\n<p>\u5728\u4f60\u5bf9\u7cfb\u7edf\u5f53\u524d\u8fd0\u884c\u7684\u9635\u5217\u6709\u4e00\u4e2a\u5f88\u597d\u7684\u4e86\u89e3\u4e4b\u540e\uff0c\u4f60\u53ef\u4ee5\u91c7\u53d6\u591a\u79cd\u884c\u52a8\u3002<\/p>\n<h2>\u505c\u6b62\u4e00\u4e2a\u9635\u5217<\/h2>\n<p>\u505c\u6b62\u4e00\u4e2a\u9635\u5217\uff0c\u7b2c\u4e00\u6b65\u662f\u5378\u8f7d\u5b83\u3002<\/p>\n<p>\u4f7f\u7528cd ~\u547d\u4ee4\u4ece\u6302\u8f7d\u7684\u76ee\u5f55\u4e2d\u8df3\u51fa\u6765\u3002<\/p>\n<pre class=\"post-pre\"><code>cd ~<\/code><\/pre>\n<p>\u7136\u540e\u5378\u8f7d\u8bbe\u5907\u3002<\/p>\n<pre class=\"post-pre\"><code>sudo umount \/mnt\/md0<\/code><\/pre>\n<p>\u4f60\u53ef\u4ee5\u901a\u8fc7\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\u6765\u505c\u6b62\u6240\u6709\u6b63\u5728\u6d3b\u52a8\u7684\u9635\u5217\u3002<\/p>\n<pre class=\"post-pre\"><code>sudo mdadm --stop --scan<\/code><\/pre>\n<p>\u5982\u679c\u4f60\u60f3\u8981\u505c\u6b62\u7279\u5b9a\u7684\u9635\u5217\uff0c\u5c06\u5176\u4f20\u9012\u7ed9mdadm &#8211;stop\u547d\u4ee4\u5373\u53ef\u3002<\/p>\n<pre class=\"post-pre\"><code>sudo mdadm --stop \/dev\/md0<\/code><\/pre>\n<p>\u8fd9\u5c06\u505c\u6b62\u9635\u5217\u3002\u60a8\u5c06\u9700\u8981\u91cd\u65b0\u7ec4\u88c5\u9635\u5217\u4ee5\u518d\u6b21\u8bbf\u95ee\u5b83\u3002<\/p>\n<h2>\u542f\u52a8\u4e00\u4e2a\u9635\u5217<\/h2>\n<p>\u8981\u542f\u52a8\u5728\u914d\u7f6e\u6587\u4ef6\u6216\/proc\/mdstat\u4e2d\u5b9a\u4e49\u7684\u6240\u6709\u9635\u5217\uff0c\u8bf7\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">&#8211;assemble<\/span> <span class=\"token parameter variable\">&#8211;scan<\/span><\/li>\n<\/ol>\n<p>\u8981\u542f\u52a8\u7279\u5b9a\u7684\u9635\u5217\uff0c\u60a8\u53ef\u4ee5\u5c06\u5176\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9mdadm &#8211;assemble\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">&#8211;assemble<\/span> \/dev\/<mark>md0<\/mark><\/li>\n<\/ol>\n<p>\u5982\u679c\u9635\u5217\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u5df2\u5b9a\u4e49\uff0c\u5219\u6b64\u65b9\u6cd5\u9002\u7528\u3002<\/p>\n<p>\u5982\u679c\u914d\u7f6e\u6587\u4ef6\u4e2d\u7f3a\u5c11\u6570\u7ec4\u7684\u6b63\u786e\u5b9a\u4e49\uff0c\u4ecd\u53ef\u4ee5\u901a\u8fc7\u4f20\u5165\u7ec4\u4ef6\u8bbe\u5907\u6765\u542f\u52a8\u9635\u5217\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">&#8211;assemble<\/span> \/dev\/<mark>md0<\/mark> \/dev\/<mark>sda<\/mark> \/dev\/<mark>sdb<\/mark> \/dev\/<mark>sdc<\/mark> \/dev\/<mark>sdd<\/mark><\/li>\n<\/ol>\n<p>\u4e00\u65e6\u9635\u5217\u88c5\u914d\u5b8c\u6210\uff0c\u53ef\u4ee5\u50cf\u5f80\u5e38\u4e00\u6837\u8fdb\u884c\u6302\u8f7d\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mount<\/span> \/dev\/<mark>md0<\/mark> \/mnt\/<mark>md0<\/mark><\/li>\n<\/ol>\n<p>\u8fd9\u4e2a\u9635\u5217\u73b0\u5728\u53ef\u4ee5\u5728\u6302\u8f7d\u70b9\u4e0a\u8bbf\u95ee\u3002<\/p>\n<h2>\u5728\u4e00\u4e2a\u9635\u5217\u4e2d\u6dfb\u52a0\u5907\u7528\u8bbe\u5907<\/h2>\n<p>\u53ef\u4ee5\u5411\u4efb\u4f55\u5177\u6709\u5197\u4f59\u529f\u80fd\u7684\u9635\u5217\u4e2d\u6dfb\u52a0\u5907\u7528\u8bbe\u5907\uff0c\u6bd4\u5982RAID 1\u30015\u30016\u621610\u3002\u9664\u975e\u67d0\u4e2a\u6d3b\u52a8\u8bbe\u5907\u53d1\u751f\u6545\u969c\uff0c\u5426\u5219\u5907\u7528\u8bbe\u5907\u5c06\u4e0d\u4f1a\u88ab\u9635\u5217\u4e3b\u52a8\u4f7f\u7528\u3002\u5f53\u6b64\u60c5\u51b5\u53d1\u751f\u65f6\uff0c\u9635\u5217\u5c06\u91cd\u65b0\u540c\u6b65\u6570\u636e\u5230\u5907\u7528\u9a71\u52a8\u5668\uff0c\u4ee5\u4fee\u590d\u9635\u5217\u5e76\u4f7f\u5176\u5b8c\u597d\u65e0\u635f\u3002\u4e0d\u80fd\u5c06\u5907\u7528\u8bbe\u5907\u6dfb\u52a0\u5230\u975e\u5197\u4f59\u9635\u5217\uff08RAID 0\uff09\u4e2d\uff0c\u56e0\u4e3a\u8be5\u9635\u5217\u65e0\u6cd5\u5728\u9a71\u52a8\u5668\u6545\u969c\u65f6\u5b58\u6d3b\u4e0b\u6765\u3002<\/p>\n<p>\u8981\u6dfb\u52a0\u5907\u7528\u8bbe\u5907\uff0c\u5c06\u9635\u5217\u548c\u65b0\u8bbe\u5907\u4f20\u9012\u7ed9mdadm &#8211;add\u547d\u4ee4\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> \/dev\/<mark>md0<\/mark> <span class=\"token parameter variable\">&#8211;add<\/span> \/dev\/<mark>sde<\/mark><\/li>\n<\/ol>\n<p>\u5982\u679c\u9635\u5217\u4e0d\u5904\u4e8e\u964d\u7ea7\u72b6\u6001\uff0c\u5219\u65b0\u8bbe\u5907\u5c06\u88ab\u6dfb\u52a0\u4e3a\u5907\u7528\u8bbe\u5907\u3002\u5982\u679c\u8bbe\u5907\u5f53\u524d\u964d\u7ea7\uff0c\u91cd\u65b0\u540c\u6b65\u64cd\u4f5c\u5c06\u7acb\u5373\u5f00\u59cb\uff0c\u4f7f\u7528\u5907\u7528\u8bbe\u5907\u66ff\u6362\u6545\u969c\u9a71\u52a8\u5668\u3002<\/p>\n<p>\u5728\u4f60\u6dfb\u52a0\u5907\u7528\u8bbe\u5907\u4e4b\u540e\uff0c\u66f4\u65b0\u914d\u7f6e\u6587\u4ef6\u4ee5\u53cd\u6620\u4f60\u7684\u65b0\u8bbe\u5907\u914d\u7f6e\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">nano<\/span> \/etc\/mdadm\/mdadm.conf<\/li>\n<\/ol>\n<p>\u5220\u9664\u6216\u6ce8\u91ca\u6389\u4e0e\u4f60\u7684\u9635\u5217\u5b9a\u4e49\u5bf9\u5e94\u7684\u5f53\u524d\u884c\u3002<\/p>\n<p>\/etc\/mdadm\/mdadm.conf \u662fmdadm\u7684\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code>. . .\r\n<mark>#<\/mark> ARRAY \/dev\/md0 metadata=1.2 name=mdadmwrite:0 UUID=d81c843b:4d96d9fc:5f3f499c:6ee99294\r\n<\/code><\/pre>\n<p>\u7136\u540e\uff0c\u5c06\u60a8\u5f53\u524d\u7684\u914d\u7f6e\u6dfb\u52a0\u5230\u5176\u4e2d\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">&#8211;detail<\/span> <span class=\"token parameter variable\">&#8211;brief<\/span> \/dev\/<mark>md0<\/mark> <span class=\"token operator\">|<\/span> <span class=\"token function\">sudo<\/span> <span class=\"token function\">tee<\/span> <span class=\"token parameter variable\">-a<\/span> \/etc\/mdadm\/mdadm.conf<\/li>\n<\/ol>\n<p>\u65b0\u7684\u4fe1\u606f\u5c06\u88abmdadm\u5b9e\u7528\u5de5\u5177\u7528\u6765\u7ec4\u88c5\u9635\u5217\u3002<\/p>\n<h2>\u589e\u52a0\u9635\u5217\u4e2d\u6d3b\u52a8\u8bbe\u5907\u7684\u6570\u91cf<\/h2>\n<p>\u5728\u7ec4\u88c5\u4e2d\u589e\u52a0\u6d3b\u52a8\u8bbe\u5907\u7684\u6570\u91cf\u53ef\u4ee5\u6269\u5c55\u9635\u5217\u3002\u5177\u4f53\u6b65\u9aa4\u4f1a\u7a0d\u5fae\u4f9d\u8d56\u60a8\u4f7f\u7528\u7684RAID\u7ea7\u522b\u3002<\/p>\n<h3>\u4f7f\u7528RAID 1\u621610<\/h3>\n<p>\u4ece\u4e0a\u4e00\u8282\u4e2d\u6f14\u793a\u7684\u65b9\u5f0f\u5f00\u59cb\uff0c\u5c06\u65b0\u8bbe\u5907\u6dfb\u52a0\u4e3a\u5907\u7528\u8bbe\u5907\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> \/dev\/<mark>md0<\/mark> <span class=\"token parameter variable\">&#8211;add<\/span> \/dev\/<mark>sde<\/mark><\/li>\n<\/ol>\n<p>\u627e\u51fa\u9635\u5217\u4e2d\u7684\u5f53\u524dRAID\u8bbe\u5907\u6570\u91cf\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">&#8211;detail<\/span> \/dev\/<mark>md0<\/mark><\/li>\n<\/ol>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\/dev\/md0: Version : 1.2 Creation Time : Wed Aug 10 15:29:26 2016 Raid Level : raid1 Array Size : 104792064 (99.94 GiB 107.31 GB) Used Dev Size : 104792064 (99.94 GiB 107.31 GB) <mark>Raid Devices : 2<\/mark> <mark>Total Devices : 3<\/mark> Persistence : Superblock is persistent . . .<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u8be5\u9635\u5217\u914d\u7f6e\u4e3a\u4e3b\u52a8\u4f7f\u7528\u4e24\u4e2a\u8bbe\u5907\u3002\u7136\u800c\uff0c\u5b83\u663e\u793a\u51fa\u6765\u7684\u662f\uff0c\u7531\u4e8e\u6709\u5907\u7528\u8bbe\u5907\uff0c\u8be5\u9635\u5217\u53ef\u7528\u7684\u8bbe\u5907\u603b\u6570\u4e3a\u4e09\u4e2a\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u91cd\u65b0\u914d\u7f6e\u9635\u5217\u4ee5\u6dfb\u52a0\u4e00\u4e2a\u989d\u5916\u7684\u6d3b\u52a8\u8bbe\u5907\u3002\u5907\u7528\u8bbe\u5907\u5c06\u88ab\u7528\u6765\u6ee1\u8db3\u989d\u5916\u7684\u9a71\u52a8\u5668\u9700\u6c42\u3002\u8bf7\u8bb0\u4f4f\u5728\u8fd9\u6761\u547d\u4ee4\u4e2d\u66ff\u6362\u4f60\u7684\u76ee\u6807RAID\u8bbe\u5907\u6570\u91cf\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u4e00\u4e2a\u75312\u4e2a\u8bbe\u5907\u7ec4\u6210\u7684RAID 1\u589e\u52a0\u52303\u4e2a\u8bbe\u5907\u3002\u5982\u679c\u60a8\u7684RAID 10\u67094\u4e2a\u8bbe\u5907\uff0c\u5e76\u4e14\u6709\u989d\u5916\u7684\u9a71\u52a8\u5668\uff0c\u8bf7\u5c06\u5176\u589e\u52a0\u52305\u4e2a\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">&#8211;grow<\/span> &#8211;raid-devices<span class=\"token operator\">=<\/span><mark><span class=\"token number\">3<\/span><\/mark> \/dev\/<mark>md0<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u9635\u5217\u5c06\u5f00\u59cb\u91cd\u65b0\u914d\u7f6e\uff0c\u589e\u52a0\u4e00\u4e2a\u6d3b\u52a8\u78c1\u76d8\u3002\u8981\u67e5\u770b\u6570\u636e\u540c\u6b65\u7684\u8fdb\u5ea6\uff0c\u8bf7\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">cat<\/span> \/proc\/mdstat<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u6d41\u7a0b\u5b8c\u6210\u4e4b\u524d\uff0c\u60a8\u53ef\u4ee5\u7ee7\u7eed\u4f7f\u7528\u8be5\u8bbe\u5907\u3002<\/p>\n<h3>\u4f7f\u7528RAID 5\u62166<\/h3>\n<p>\u5728\u6700\u540e\u4e00\u8282\u6240\u793a\u7684\u60c5\u51b5\u4e0b\uff0c\u9996\u5148\u5c06\u65b0\u8bbe\u5907\u6dfb\u52a0\u4e3a\u5907\u7528\u8bbe\u5907\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> \/dev\/<mark>md0<\/mark> <span class=\"token parameter variable\">&#8211;add<\/span> \/dev\/<mark>sde<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u67e5\u627e\u9635\u5217\u4e2d\u5f53\u524d\u7684RAID\u8bbe\u5907\u6570\u91cf\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">&#8211;detail<\/span> \/dev\/<mark>md0<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\/dev\/md0: Version : 1.2 Creation Time : Wed Oct 5 18:38:51 2022 Raid Level : raid5 Array Size : 209584128 (199.88 GiB 214.61 GB) Used Dev Size : 104792064 (99.94 GiB 107.31 GB) <mark>Raid Devices : 3<\/mark> <mark>Total Devices : 4<\/mark> Persistence : Superblock is persistent . . .<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u9635\u5217\u88ab\u914d\u7f6e\u4e3a\u4e3b\u52a8\u4f7f\u7528\u4e09\u4e2a\u8bbe\u5907\uff0c\u5e76\u4e14\u7531\u4e8e\u6dfb\u52a0\u4e86\u5907\u7528\u8bbe\u5907\uff0c\u9635\u5217\u53ef\u7528\u7684\u8bbe\u5907\u603b\u6570\u662f\u56db\u4e2a\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u91cd\u65b0\u914d\u7f6e\u9635\u5217\u4ee5\u6dfb\u52a0\u4e00\u4e2a\u989d\u5916\u7684\u6d3b\u52a8\u8bbe\u5907\u3002\u5907\u7528\u8bbe\u5907\u5c06\u7528\u4e8e\u6ee1\u8db3\u989d\u5916\u7684\u9a71\u52a8\u9700\u6c42\u3002\u5728\u6269\u5c55RAID 5\u6216RAID 6\u9635\u5217\u65f6\uff0c\u91cd\u8981\u7684\u662f\u8981\u5305\u62ec\u4e00\u4e2a\u540d\u4e3a&#8211;backup-file\u7684\u989d\u5916\u9009\u9879\u3002\u8fd9\u5c06\u6307\u5411\u4e00\u4e2a\u4f4d\u7f6e\uff0c\u5728\u9635\u5217\u5916\u7684\u5730\u65b9\u5b58\u50a8\u4e00\u4e2a\u5305\u542b\u5173\u952e\u4fe1\u606f\u7684\u5907\u4efd\u6587\u4ef6\u3002<\/p>\n<div class=\"post-conf-note\">\n<p class=\"post-conf-desc\">\u6ce8\u610f\uff1a<\/p>\n<div>\u5907\u4efd\u6587\u4ef6\u4ec5\u5728\u6b64\u8fc7\u7a0b\u7684\u4e00\u4e2a\u975e\u5e38\u77ed\u6682\u4f46\u5173\u952e\u7684\u65f6\u95f4\u5185\u4f7f\u7528\uff0c\u4e4b\u540e\u5c06\u81ea\u52a8\u5220\u9664\u3002\u7531\u4e8e\u9700\u8981\u7684\u65f6\u95f4\u5f88\u77ed\uff0c\u60a8\u53ef\u80fd\u6c38\u8fdc\u4e0d\u4f1a\u5728\u786c\u76d8\u4e0a\u770b\u5230\u8be5\u6587\u4ef6\uff0c\u4f46\u5982\u679c\u51fa\u73b0\u95ee\u9898\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u91cd\u65b0\u6784\u5efa\u9635\u5217\u3002\u5982\u679c\u60a8\u60f3\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u672c\u5e16\u5b50\u3002<\/div>\n<\/p>\n<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">&#8211;grow<\/span> &#8211;raid-devices<span class=\"token operator\">=<\/span><mark><span class=\"token number\">4<\/span><\/mark> &#8211;backup-file<span class=\"token operator\">=<\/span><mark>\/root\/md0_grow.bak<\/mark> \/dev\/<mark>md0<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4ee5\u4e0b\u7684\u8f93\u51fa\u8868\u660e\u5173\u952e\u90e8\u5206\u4f1a\u88ab\u5907\u4efd\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>mdadm: Need to backup 3072K of critical section..<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u9635\u5217\u5c06\u5f00\u59cb\u91cd\u65b0\u914d\u7f6e\uff0c\u589e\u52a0\u4e00\u4e2a\u6d3b\u52a8\u7684\u78c1\u76d8\u3002\u8981\u67e5\u770b\u6570\u636e\u540c\u6b65\u7684\u8fdb\u5ea6\uff0c\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">cat<\/span> \/proc\/mdstat<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u6b64\u8fc7\u7a0b\u5b8c\u6210\u4e4b\u524d\uff0c\u60a8\u53ef\u4ee5\u7ee7\u7eed\u4f7f\u7528\u8be5\u8bbe\u5907\u3002<\/p>\n<p>\u5728\u91cd\u65b0\u8c03\u6574\u5b8c\u6210\u540e\uff0c\u60a8\u9700\u8981\u6269\u5c55\u9635\u5217\u7684\u6587\u4ef6\u7cfb\u7edf\u4ee5\u5229\u7528\u989d\u5916\u7684\u7a7a\u95f4\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> resize2fs \/dev\/md0<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u60a8\u7684\u9635\u5217\u73b0\u5728\u5c06\u62e5\u6709\u4e0e\u5176\u5bb9\u91cf\u76f8\u5339\u914d\u7684\u6587\u4ef6\u7cfb\u7edf\u3002<\/p>\n<h3>\u4f7f\u7528RAID 0<\/h3>\n<p>RAID 0\u9635\u5217\u65e0\u6cd5\u6709\u5907\u7528\u9a71\u52a8\u5668\uff0c\u56e0\u4e3a\u5907\u7528\u9a71\u52a8\u5668\u65e0\u6cd5\u91cd\u5efa\u635f\u574f\u7684RAID 0\u9635\u5217\u3002\u60a8\u5fc5\u987b\u5728\u6269\u5c55\u9635\u5217\u7684\u540c\u65f6\u6dfb\u52a0\u65b0\u8bbe\u5907\u3002<\/p>\n<p>\u9996\u5148\uff0c\u627e\u51fa\u9635\u5217\u4e2d\u5f53\u524d\u7684RAID\u8bbe\u5907\u6570\u91cf\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">&#8211;detail<\/span> \/dev\/<mark>md0<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\/dev\/md0: \u7248\u672c : 1.2 \u521b\u5efa\u65f6\u95f4 : 2020\u5e748\u670810\u65e5 19:17:14 RAID\u7ea7\u522b : raid0 \u9635\u5217\u5927\u5c0f : 209584128 (199.88 GiB 214.61 GB) <mark>RAID\u8bbe\u5907 : 2<\/mark> <mark>\u603b\u8bbe\u5907\u6570 : 2<\/mark> \u6301\u4e45\u6027 : \u8d85\u7ea7\u5757\u662f\u6301\u4e45\u7684 . . .<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u73b0\u5728\uff0c\u4f60\u53ef\u4ee5\u5728\u6dfb\u52a0\u65b0\u9a71\u52a8\u5668\u7684\u540c\u65f6\u589e\u52a0RAID\u8bbe\u5907\u7684\u6570\u91cf\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">&#8211;grow<\/span> \/dev\/<mark>md0<\/mark> &#8211;raid-devices<span class=\"token operator\">=<\/span><mark><span class=\"token number\">3<\/span><\/mark> <span class=\"token parameter variable\">&#8211;add<\/span> \/dev\/<mark>sdc<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4f60\u5c06\u6536\u5230\u8f93\u51fa\uff0c\u63d0\u793a\u6570\u7ec4\u5df2\u66f4\u6539\u4e3aRAID 4\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>mdadm: \/dev\/md0\u7684\u7ea7\u522b\u5df2\u66f4\u6539\u4e3araid4 mdadm: \u5df2\u6dfb\u52a0\/dev\/sdc<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8fd9\u662f\u6b63\u5e38\u4e14\u9884\u671f\u7684\u60c5\u51b5\u3002\u5f53\u6570\u636e\u91cd\u65b0\u5206\u914d\u5230\u6240\u6709\u73b0\u6709\u78c1\u76d8\u4e0a\u65f6\uff0c\u9635\u5217\u5c06\u4f1a\u6062\u590d\u4e3aRAID 0\u3002<\/p>\n<p>\u4f60\u53ef\u4ee5\u67e5\u770b\u884c\u52a8\u7684\u8fdb\u5c55\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">cat<\/span> \/proc\/mdstat<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4e00\u65e6\u540c\u6b65\u5b8c\u6210\uff0c\u8c03\u6574\u6587\u4ef6\u7cfb\u7edf\u7684\u5927\u5c0f\u4ee5\u5229\u7528\u989d\u5916\u7684\u7a7a\u95f4\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> resize2fs \/dev\/<mark>md0<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u60a8\u7684\u9635\u5217\u73b0\u5728\u5c06\u62e5\u6709\u4e0e\u5176\u5bb9\u91cf\u76f8\u5339\u914d\u7684\u6587\u4ef6\u7cfb\u7edf\u3002<\/p>\n<h2>\u4ece\u9635\u5217\u4e2d\u79fb\u9664\u4e00\u4e2a\u8bbe\u5907<\/h2>\n<p>\u6709\u65f6\u5019\uff0c\u5982\u679cRAID\u9635\u5217\u51fa\u73b0\u6545\u969c\u6216\u8005\u9700\u8981\u66f4\u6362\u786c\u76d8\uff0c\u5c31\u9700\u8981\u79fb\u9664\u5176\u4e2d\u7684\u4e00\u5757\u9a71\u52a8\u5668\u3002<\/p>\n<p>\u8981\u79fb\u9664\u8bbe\u5907\uff0c\u9996\u5148\u5fc5\u987b\u5728\u9635\u5217\u4e2d\u5c06\u5176\u6807\u8bb0\u4e3a&#8221;\u5df2\u5931\u6548&#8221;\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528mdadm &#8211;detail\u547d\u4ee4\u6765\u68c0\u67e5\u662f\u5426\u6709\u8bbe\u5907\u5931\u6548\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">&#8211;detail<\/span> \/dev\/<mark>md0<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\/dev\/md0: \u7248\u672c : 1.2 \u521b\u5efa\u65f6\u95f4 : 2020\u5e748\u670810\u65e5 21:42:12 RAID\u7ea7\u522b : raid5 \u9635\u5217\u5927\u5c0f : 209584128 (199.88 GiB 214.61 GB) \u5df2\u4f7f\u7528\u8bbe\u5907\u5927\u5c0f : 104792064 (99.94 GiB 107.31 GB) RAID\u8bbe\u5907 : 3 \u603b\u8bbe\u5907\u6570 : 3 \u6301\u4e45\u6027 : \u8d85\u7ea7\u5757\u662f\u6301\u4e45\u7684 \u66f4\u65b0\u65f6\u95f4 : 2020\u5e748\u670811\u65e5 14:10:43 <mark>\u72b6\u6001 : clean, degraded <\/mark> \u6d3b\u52a8\u8bbe\u5907 : 2 \u5de5\u4f5c\u8bbe\u5907 : 2 <mark>\u6545\u969c\u8bbe\u5907 : 1<\/mark> \u5907\u7528\u8bbe\u5907 : 0 \u5e03\u5c40 : left-symmetric \u5757\u5927\u5c0f : 64K \u540d\u79f0 : mdadmwrite:0 (\u672c\u5730\u5230\u4e3b\u673a mdadmwrite) UUID : bf7a711b:b3aa9440:40d2c12e:79824706 \u4e8b\u4ef6 : 144 \u7f16\u53f7 \u4e3b\u8bbe\u5907\u53f7 \u6b21\u8bbe\u5907\u53f7 RAID\u8bbe\u5907 \u72b6\u6001 0 0 0 0 \u5df2\u79fb\u9664 1 8 0 1 \u6d3b\u52a8\u540c\u6b65 \/dev\/sda 2 8 16 2 \u6d3b\u52a8\u540c\u6b65 \/dev\/sdb <mark>0 8 32 &#8211; \u6545\u969c \/dev\/sdc<\/mark><\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8fd9\u4e9b\u7a81\u51fa\u663e\u793a\u7684\u884c\u90fd\u8868\u793a\u4e00\u4e2a\u9a71\u52a8\u5668\u4e0d\u518d\u5de5\u4f5c\u3002\u4f8b\u5982\uff0c\u5728\u8fd9\u4e2a\u8f93\u51fa\u4e2d\/dev\/sdc\u8868\u660e\u8fd9\u4e2a\u9a71\u52a8\u5668\u662f\u6709\u95ee\u9898\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u79fb\u9664\u4e00\u4e2a\u6ca1\u6709\u95ee\u9898\u7684\u9a71\u52a8\u5668\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528&#8211;fail\u9009\u9879\u624b\u52a8\u5c06\u5176\u6807\u8bb0\u4e3a\u5931\u8d25\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> \/dev\/<mark>md0<\/mark> <span class=\"token parameter variable\">&#8211;fail<\/span> \/dev\/<mark>sdc<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>mdadm: \u5728\/dev\/md0\u4e2d\u5c06\/dev\/sdc\u8bbe\u7f6e\u4e3a\u6545\u969c<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5982\u679c\u60a8\u67e5\u770bmdadm &#8211;detail\u7684\u8f93\u51fa\uff0c\u60a8\u4f1a\u53d1\u73b0\u8bbe\u5907\u73b0\u5728\u88ab\u6807\u8bb0\u4e3a\u6545\u969c\u3002<\/p>\n<p>\u4e00\u65e6\u8bbe\u5907\u5931\u8d25\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528mdadm &#8211;remove\u547d\u4ee4\u4ece\u9635\u5217\u4e2d\u79fb\u9664\u5b83\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> \/dev\/<mark>md0<\/mark> <span class=\"token parameter variable\">&#8211;remove<\/span> \/dev\/<mark>sdc<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>mdadm: \u5df2\u4ece\/dev\/md0\u4e2d\u70ed\u79fb\u9664\/dev\/sdc<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u76f8\u540c\u7684mdadm &#8211;add\u547d\u4ee4\u66ff\u6362\u4e3a\u65b0\u7684\u9a71\u52a8\u5668\uff0c\u5c31\u50cf\u60a8\u7528\u6765\u6dfb\u52a0\u5907\u7528\u9a71\u52a8\u5668\u4e00\u6837\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> \/dev\/<mark>md0<\/mark> <span class=\"token parameter variable\">&#8211;add<\/span> \/dev\/<mark>sdd<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>mdadm: \u5df2\u6dfb\u52a0\/dev\/sdd<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u9635\u5217\u5c06\u901a\u8fc7\u5c06\u6570\u636e\u590d\u5236\u5230\u65b0\u7684\u9a71\u52a8\u5668\u5f00\u59cb\u6062\u590d\u3002<\/p>\n<h2>\u5220\u9664\u4e00\u4e2a\u6570\u7ec4<\/h2>\n<p>\u8981\u9500\u6bc1RAID\u9635\u5217\u53ca\u5176\u4e2d\u7684\u6240\u6709\u6570\u636e\uff0c\u9996\u5148\u9700\u8981\u6309\u7167\u505c\u6b62\u9635\u5217\u7684\u6b65\u9aa4\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u9000\u51fa\u5df2\u6302\u8f7d\u7684\u76ee\u5f55\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token builtin class-name\">cd<\/span> ~<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u7136\u540e\u5378\u8f7d\u6587\u4ef6\u7cfb\u7edf\u3002<\/p>\n<pre class=\"post-pre\"><code>sudo umount <mark>\/mnt\/md0<\/mark>\r\n<\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u505c\u6b62\u9635\u5217\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">&#8211;stop<\/span> \/dev\/<mark>md0<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u7136\u540e\uff0c\u4f7f\u7528&#8211;remove\u547d\u4ee4\u6765\u5220\u9664\u6307\u5b9a\u7684RAID\u8bbe\u5907\u4e0a\u7684\u9635\u5217\u672c\u8eab\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> <span class=\"token parameter variable\">&#8211;remove<\/span> \/dev\/<mark>md0<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4e00\u65e6\u5220\u9664\u4e86\u9635\u5217\u672c\u8eab\uff0c\u9700\u8981\u5bf9\u6bcf\u4e2a\u7ec4\u4ef6\u8bbe\u5907\u4f7f\u7528mdadm &#8211;zero-superblock\u547d\u4ee4\u3002\u8fd9\u5c06\u64e6\u9664md\u8d85\u7ea7\u5757\uff0c\u5373\u7531mdadm\u7528\u4e8e\u7ec4\u88c5\u548c\u7ba1\u7406\u7ec4\u4ef6\u8bbe\u5907\u4f5c\u4e3a\u9635\u5217\u7684\u6807\u5934\u3002\u5982\u679c\u4ecd\u7136\u5b58\u5728\uff0c\u5f53\u5c1d\u8bd5\u5c06\u78c1\u76d8\u91cd\u65b0\u7528\u4e8e\u5176\u4ed6\u76ee\u7684\u65f6\u53ef\u80fd\u4f1a\u5f15\u8d77\u95ee\u9898\u3002<\/p>\n<p>\u8981\u786e\u8ba4\u9635\u5217\u4e2d\u7684\u8d85\u7ea7\u5757\u662f\u5426\u5b58\u5728\uff0c\u8bf7\u67e5\u770blsblk &#8211;fs\u8f93\u51fa\u4e2d\u7684FSTYPE\u5217\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">lsblk <span class=\"token parameter variable\">&#8211;fs<\/span><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code>NAME FSTYPE LABEL UUID MOUNTPOINT \u2026 sda <mark>linux_raid_member<\/mark> mdadmwrite:0 bf7a711b-b3aa-9440-40d2-c12e79824706 sdb <mark>linux_raid_member<\/mark> mdadmwrite:0 bf7a711b-b3aa-9440-40d2-c12e79824706 sdc <mark>linux_raid_member<\/mark> mdadmwrite:0 bf7a711b-b3aa-9440-40d2-c12e79824706 sdd vda \u251c\u2500vda1 ext4 DOROOT 4f8b85db-8c11-422b-83c4-c74195f67b91 \/ \u2514\u2500vda15\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\/dev\/sda\u3001\/dev\/sdb\u548c\/dev\/sdc\u90fd\u662f\u9635\u5217\u7684\u4e00\u90e8\u5206\uff0c\u4ecd\u7136\u88ab\u6807\u793a\u4e3a\u8fd9\u6837\u3002<\/p>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u53bb\u9664\u6807\u7b7e\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">mdadm<\/span> &#8211;zero-superblock \/dev\/<mark>sda<\/mark> \/dev\/<mark>sdb<\/mark> \/dev\/<mark>sdc<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u8bf7\u786e\u4fdd\u60a8\u5c06\/etc\/fstab\u6587\u4ef6\u4e2d\u5bf9\u9635\u5217\u7684\u4efb\u4f55\u5f15\u7528\u5220\u9664\u6216\u6ce8\u91ca\u6389\u3002\u60a8\u53ef\u4ee5\u5728\u5f00\u5934\u6dfb\u52a0\u4e95\u53f7\u7b26\u53f7#\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> <span class=\"token function\">nano<\/span> \/etc\/fstab<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div>\/etc\/fstab \u6587\u4ef6\u5185\u5bb9\u5982\u4e0b\uff1a<\/div>\n<pre class=\"post-pre\"><code>. . .\r\n<mark>#<\/mark> \/dev\/md0 \/mnt\/md0 ext4 defaults,nofail,discard 0 0\r\n<\/code><\/pre>\n<p>\u5f53\u4f60\u5b8c\u6210\u65f6\uff0c\u4fdd\u5b58\u5e76\u5173\u95ed\u6587\u4ef6\u3002<\/p>\n<p>\u4ece\/etc\/mdadm\/mdadm.conf\u6587\u4ef6\u4e2d\u5220\u9664\u6216\u6ce8\u91ca\u6389\u5bf9\u9635\u5217\u7684\u4efb\u4f55\u5f15\u7528\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">nano<\/span> \/etc\/mdadm\/mdadm.conf<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div>\/etc\/mdadm\/mdadm.conf\u6587\u4ef6\u5185\u5bb9\u5982\u4e0b\uff1a<\/div>\n<pre class=\"post-pre\"><code><mark>#<\/mark> ARRAY \/dev\/md0 metadata=1.2 name=mdadmwrite:0 UUID=bf7a711b:b3aa9440:40d2c12e:79824706 \r\n<\/code><\/pre>\n<p>\u5b8c\u6210\u540e\u8bf7\u4fdd\u5b58\u5e76\u5173\u95ed\u6587\u4ef6\u3002<\/p>\n<p>\u7136\u540e\u66f4\u65b0initramfs\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">sudo<\/span> update-initramfs <span class=\"token parameter variable\">-u<\/span><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8fd9\u5c06\u4ece\u65e9\u671f\u542f\u52a8\u73af\u5883\u4e2d\u79fb\u9664\u8bbe\u5907\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u4e00\u65e6\u4f60\u4e86\u89e3Linux\u7684mdadm\u5b9e\u7528\u7a0b\u5e8f\u4f7f\u7528\u7684\u7ea6\u5b9a\u548c\u53ef\u4ee5\u627e\u5230\u4fe1\u606f\u7684\u4f4d\u7f6e\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u9635\u5217\u3002\u8fd9\u4e2a\u6307\u5357\u5e76\u975e\u8be6\u5c3d\u65e0\u9057\uff0c\u4f46\u65e8\u5728\u4ecb\u7ecd\u53ef\u80fd\u9700\u8981\u5728\u65e5\u5e38\u5de5\u4f5c\u4e2d\u6267\u884c\u7684\u4e00\u4e9b\u7ba1\u7406\u4efb\u52a1\u3002<\/p>\n<p>\u4e00\u65e6\u4f60\u719f\u7ec3\u4f7f\u7528mdadm\u521b\u5efa\u548c\u7ba1\u7406RAID\u9635\u5217\uff0c\u4f60\u53ef\u4ee5\u63a2\u7d22\u8bb8\u591a\u4e0d\u540c\u7684\u65b9\u5411\u3002\u50cfLVM\u8fd9\u6837\u7684\u5377\u7ba1\u7406\u5c42\u4e0eRAID\u7d27\u5bc6\u96c6\u6210\uff0c\u4f7f\u4f60\u80fd\u591f\u7075\u6d3b\u5730\u5c06\u7a7a\u95f4\u5212\u5206\u4e3a\u903b\u8f91\u5377\u3002\u8981\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u67e5\u9605\u6211\u4eec\u7684\u300aLVM\u6982\u5ff5\u4ecb\u7ecd\u6559\u7a0b\u300b\u3002<\/p>\n<p>\u540c\u6837\uff0c\u5e38\u7528\u7684LUKS\u548cdm-crypt\u52a0\u5bc6\u6280\u672f\u53ef\u7528\u4e8e\u5728\u5199\u5165\u6587\u4ef6\u7cfb\u7edf\u4e4b\u524d\u5bf9RAID\u8bbe\u5907\u8fdb\u884c\u52a0\u5bc6\u3002Linux\u5141\u8bb8\u5c06\u6240\u6709\u8fd9\u4e9b\u6280\u672f\u4e00\u8d77\u4f7f\u7528\uff0c\u4ee5\u63d0\u5347\u5b58\u50a8\u80fd\u529b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ecb\u7ecd \u5728Linux\u4e2d\uff0cRAID\u9635\u5217\u901a\u8fc7\u5c06\u5355\u4e2a\u78c1\u76d8\u4ee5\u7279\u5b9a\u914d\u7f6e\u7ec4\u5408\u6210\u865a\u62df\u5b58\u50a8\u8bbe\u5907\uff0c\u63d0\u4f9b\u4e86\u589e\u52a0\u7684\u6027\u80fd\u548c\u5197\u4f59\u3002mdad [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1063,1061,1062,300,198],"class_list":["post-303","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-linux","tag-mdadm","tag-raid","tag-ubuntu-22-04","tag-198"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ubuntu 22.04\u7cfb\u7edf\u4e0bmdadm\u7ba1\u7406RAID\u9635\u5217\u5b8c\u5168\u6307\u5357 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u672c\u6559\u7a0b\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728Ubuntu 22.04\u7cfb\u7edf\u4e0a\u4f7f\u7528mdadm\u5de5\u5177\u521b\u5efa\u3001\u914d\u7f6e\u548c\u7ba1\u7406RAID\u9635\u5217\u3002\u6db5\u76d6RAID\u7ea7\u522b\u9009\u62e9\u3001\u9635\u5217\u521b\u5efa\u3001\u76d1\u63a7\u4e0e\u7ef4\u62a4\u7b49\u5173\u952e\u6b65\u9aa4\uff0c\u5e2e\u52a9\u7cfb\u7edf\u7ba1\u7406\u5458\u9ad8\u6548\u7ba1\u7406\u670d\u52a1\u5668\u5b58\u50a8\uff0c\u786e\u4fdd\u6570\u636e\u5b89\u5168\u4e0e\u6027\u80fd\u4f18\u5316\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5982\u4f55\u5728ubuntu-22-04\u4e0a\u4f7f\u7528mdadm\u7ba1\u7406raid\u9635\u5217\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ubuntu 22.04\u7cfb\u7edf\u4e0bmdadm\u7ba1\u7406RAID\u9635\u5217\u5b8c\u5168\u6307\u5357\" \/>\n<meta property=\"og:description\" content=\"\u672c\u6559\u7a0b\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728Ubuntu 22.04\u7cfb\u7edf\u4e0a\u4f7f\u7528mdadm\u5de5\u5177\u521b\u5efa\u3001\u914d\u7f6e\u548c\u7ba1\u7406RAID\u9635\u5217\u3002\u6db5\u76d6RAID\u7ea7\u522b\u9009\u62e9\u3001\u9635\u5217\u521b\u5efa\u3001\u76d1\u63a7\u4e0e\u7ef4\u62a4\u7b49\u5173\u952e\u6b65\u9aa4\uff0c\u5e2e\u52a9\u7cfb\u7edf\u7ba1\u7406\u5458\u9ad8\u6548\u7ba1\u7406\u670d\u52a1\u5668\u5b58\u50a8\uff0c\u786e\u4fdd\u6570\u636e\u5b89\u5168\u4e0e\u6027\u80fd\u4f18\u5316\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5982\u4f55\u5728ubuntu-22-04\u4e0a\u4f7f\u7528mdadm\u7ba1\u7406raid\u9635\u5217\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-02-18T22:29:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-01T12:15:27+00:00\" \/>\n<meta name=\"author\" content=\"\u97f5, \u79d1\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u97f5, \u79d1\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/\",\"name\":\"Ubuntu 22.04\u7cfb\u7edf\u4e0bmdadm\u7ba1\u7406RAID\u9635\u5217\u5b8c\u5168\u6307\u5357 - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2024-02-18T22:29:30+00:00\",\"dateModified\":\"2025-08-01T12:15:27+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/6530331a63adef3b3443a1fab53a0e6e\"},\"description\":\"\u672c\u6559\u7a0b\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728Ubuntu 22.04\u7cfb\u7edf\u4e0a\u4f7f\u7528mdadm\u5de5\u5177\u521b\u5efa\u3001\u914d\u7f6e\u548c\u7ba1\u7406RAID\u9635\u5217\u3002\u6db5\u76d6RAID\u7ea7\u522b\u9009\u62e9\u3001\u9635\u5217\u521b\u5efa\u3001\u76d1\u63a7\u4e0e\u7ef4\u62a4\u7b49\u5173\u952e\u6b65\u9aa4\uff0c\u5e2e\u52a9\u7cfb\u7edf\u7ba1\u7406\u5458\u9ad8\u6548\u7ba1\u7406\u670d\u52a1\u5668\u5b58\u50a8\uff0c\u786e\u4fdd\u6570\u636e\u5b89\u5168\u4e0e\u6027\u80fd\u4f18\u5316\u3002\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ubuntu 22.04\u7cfb\u7edf\u4e0bmdadm\u7ba1\u7406RAID\u9635\u5217\u5b8c\u5168\u6307\u5357\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/6530331a63adef3b3443a1fab53a0e6e\",\"name\":\"\u97f5, \u79d1\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/429ccb39b3fff5188bc17986222cfb0936cbadb8cc933cff04ab5ca01bd30a08?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/429ccb39b3fff5188bc17986222cfb0936cbadb8cc933cff04ab5ca01bd30a08?s=96&d=mm&r=g\",\"caption\":\"\u97f5, \u79d1\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/yunke\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Ubuntu 22.04\u7cfb\u7edf\u4e0bmdadm\u7ba1\u7406RAID\u9635\u5217\u5b8c\u5168\u6307\u5357 - Blog - Silicon Cloud","description":"\u672c\u6559\u7a0b\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728Ubuntu 22.04\u7cfb\u7edf\u4e0a\u4f7f\u7528mdadm\u5de5\u5177\u521b\u5efa\u3001\u914d\u7f6e\u548c\u7ba1\u7406RAID\u9635\u5217\u3002\u6db5\u76d6RAID\u7ea7\u522b\u9009\u62e9\u3001\u9635\u5217\u521b\u5efa\u3001\u76d1\u63a7\u4e0e\u7ef4\u62a4\u7b49\u5173\u952e\u6b65\u9aa4\uff0c\u5e2e\u52a9\u7cfb\u7edf\u7ba1\u7406\u5458\u9ad8\u6548\u7ba1\u7406\u670d\u52a1\u5668\u5b58\u50a8\uff0c\u786e\u4fdd\u6570\u636e\u5b89\u5168\u4e0e\u6027\u80fd\u4f18\u5316\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/\u5982\u4f55\u5728ubuntu-22-04\u4e0a\u4f7f\u7528mdadm\u7ba1\u7406raid\u9635\u5217\/","og_locale":"zh_CN","og_type":"article","og_title":"Ubuntu 22.04\u7cfb\u7edf\u4e0bmdadm\u7ba1\u7406RAID\u9635\u5217\u5b8c\u5168\u6307\u5357","og_description":"\u672c\u6559\u7a0b\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728Ubuntu 22.04\u7cfb\u7edf\u4e0a\u4f7f\u7528mdadm\u5de5\u5177\u521b\u5efa\u3001\u914d\u7f6e\u548c\u7ba1\u7406RAID\u9635\u5217\u3002\u6db5\u76d6RAID\u7ea7\u522b\u9009\u62e9\u3001\u9635\u5217\u521b\u5efa\u3001\u76d1\u63a7\u4e0e\u7ef4\u62a4\u7b49\u5173\u952e\u6b65\u9aa4\uff0c\u5e2e\u52a9\u7cfb\u7edf\u7ba1\u7406\u5458\u9ad8\u6548\u7ba1\u7406\u670d\u52a1\u5668\u5b58\u50a8\uff0c\u786e\u4fdd\u6570\u636e\u5b89\u5168\u4e0e\u6027\u80fd\u4f18\u5316\u3002","og_url":"https:\/\/www.silicloud.com\/zh\/blog\/\u5982\u4f55\u5728ubuntu-22-04\u4e0a\u4f7f\u7528mdadm\u7ba1\u7406raid\u9635\u5217\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2024-02-18T22:29:30+00:00","article_modified_time":"2025-08-01T12:15:27+00:00","author":"\u97f5, \u79d1","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u97f5, \u79d1","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"5 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/","url":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/","name":"Ubuntu 22.04\u7cfb\u7edf\u4e0bmdadm\u7ba1\u7406RAID\u9635\u5217\u5b8c\u5168\u6307\u5357 - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website"},"datePublished":"2024-02-18T22:29:30+00:00","dateModified":"2025-08-01T12:15:27+00:00","author":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/6530331a63adef3b3443a1fab53a0e6e"},"description":"\u672c\u6559\u7a0b\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728Ubuntu 22.04\u7cfb\u7edf\u4e0a\u4f7f\u7528mdadm\u5de5\u5177\u521b\u5efa\u3001\u914d\u7f6e\u548c\u7ba1\u7406RAID\u9635\u5217\u3002\u6db5\u76d6RAID\u7ea7\u522b\u9009\u62e9\u3001\u9635\u5217\u521b\u5efa\u3001\u76d1\u63a7\u4e0e\u7ef4\u62a4\u7b49\u5173\u952e\u6b65\u9aa4\uff0c\u5e2e\u52a9\u7cfb\u7edf\u7ba1\u7406\u5458\u9ad8\u6548\u7ba1\u7406\u670d\u52a1\u5668\u5b58\u50a8\uff0c\u786e\u4fdd\u6570\u636e\u5b89\u5168\u4e0e\u6027\u80fd\u4f18\u5316\u3002","breadcrumb":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/zh\/blog\/"},{"@type":"ListItem","position":2,"name":"Ubuntu 22.04\u7cfb\u7edf\u4e0bmdadm\u7ba1\u7406RAID\u9635\u5217\u5b8c\u5168\u6307\u5357"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website","url":"https:\/\/www.silicloud.com\/zh\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/6530331a63adef3b3443a1fab53a0e6e","name":"\u97f5, \u79d1","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/429ccb39b3fff5188bc17986222cfb0936cbadb8cc933cff04ab5ca01bd30a08?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/429ccb39b3fff5188bc17986222cfb0936cbadb8cc933cff04ab5ca01bd30a08?s=96&d=mm&r=g","caption":"\u97f5, \u79d1"},"url":"https:\/\/www.silicloud.com\/zh\/blog\/author\/yunke\/"},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8mdadm%e7%ae%a1%e7%90%86raid%e9%98%b5%e5%88%97\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/303","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/comments?post=303"}],"version-history":[{"count":4,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/303\/revisions"}],"predecessor-version":[{"id":109790,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/303\/revisions\/109790"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/media?parent=303"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/categories?post=303"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/tags?post=303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}