{"id":2134,"date":"2021-11-03T13:45:34","date_gmt":"2021-11-03T05:45:34","guid":{"rendered":"https:\/\/www.wjxy.net.cn\/?p=2134"},"modified":"2023-10-04T06:32:24","modified_gmt":"2023-10-03T22:32:24","slug":"linux%e4%b8%8b%e5%88%a9%e7%94%a8badblocks%e7%a8%8b%e5%ba%8f%e5%9c%a8%e7%ba%bf%e4%bf%ae%e5%a4%8d%e5%9d%8f%e9%81%93","status":"publish","type":"post","link":"https:\/\/www.wjxy.net.cn\/?p=2134","title":{"rendered":"linux\u4e0b\u5229\u7528badblocks\u7a0b\u5e8f\u5728\u7ebf\u4fee\u590d\u574f\u9053"},"content":{"rendered":"<p>\u6d4b\u8bd5\u5757\uff1abadblocks -s -v -o sdbbadblocks.log \/dev\/sdb<\/p>\n<p>\u6d4b\u8bd5\u5757\uff1abadblocks -s -v -o sdbbadblocks.log \/dev\/sdb END START<\/p>\n<pre class=\"brush:bash;toolbar:false prettyprint language-bash\" tabindex=\"0\"><code id=\"code_id_2\" class=\" has-numbering language-bash\">\u91cd\u5199\u5757(\u4f1a\u8986\u76d6\u6570\u636e\uff09\uff1abadblocks -w -s \/dev\/sdb END START\r\nbadblocks: Value too large for defined data type invalid end block (7813464064): must be 32-bit value \u5982\u679c\u62a5\u9519\u7528\u4e0b\u9762-b 4096\u53c2\u6570<\/code><\/pre>\n<p>\u6d4b\u8bd5500G\u5927\u7ea6\u4e00\u5c0f\u65f6\u5de6\u53f3<\/p>\n<p>\u73b0\u5728\u7684\u786c\u76d8\uff0c\u5728\u5185\u90e8\u4f1a\u6709\u4e00\u4fdd\u7559\u533a\u57df\uff0c\u6765\u66ff\u6362\u51fa\u73b0\u574f\u5757\u7684\u6247\u533a\uff0c\u8fd9\u5bf9\u4e8e\u78c1\u76d8\u5916\u7684\u7cfb\u7edf\u6765\u8bf4\u662f\u900f\u660e\u7684\uff0c<\/p>\n<p>\u5982\u679c\u5df2\u7ecf\u5b58\u5728\u4e86\u574f\u9053\uff0c\u786c\u76d8\u4f1a\u5728\u5199\u5165\u7684\u65f6\u5019\u5c06\u5b83\u66ff\u6362\u5230\u522b\u7684\u4f4d\u7f6e\uff0c \u6ce8\u610f\uff0c \u53ea\u6709\u5728\u5199\u5165\u7684\u65f6\u5019\uff0c\u624d\u8fdb\u884c\u91cd\u5b9a\u4f4d\u3002<\/p>\n<p>\u6211\u5011\u5b8c\u5168\u4e0d\u5fc5\u8981\u4f7f\u7528\u4e0a\u5c42\u7684\u6587\u4ef6\u7cfb\u7edf\u7684\u574f\u9053\u8868\u529f\u80fd\uff0c \u53ea\u8981\u5bf9\u574f\u5757\u4f4d\u7f6e\u8fdb\u884c\u5199\u5165\uff0c\u5c31\u53ef\u4ee5\u4fee\u590d\u4e86\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u4f7f\u7528badblocks \u53ef\u4ee5\u67e5\u51fa\u574f\u5757\uff0c\u7136\u540ebadblocks\u672c\u662f\u5177\u6709\u5199\u6d4b\u8bd5\u529f\u80fd\uff0c\u6211\u5011\u53ea\u9700\u8981\u7528badblocks\u5c31\u53ef\u4ee5\u4e86\uff0c<\/p>\n<p>\u56e0\u4e3a\u4e0d\u7528\u5411\u4e0a\u5c42\u7684\u6587\u4ef6\u7cfb\u7edf\u63d0\u4f9b\u574f\u9053\u8868\uff0c \u6240\u4ee5\u6211\u5011\u5728\u626b\u63cf\u574f\u9053\u65f6\uff0c\u4e0d\u7528\u8bbe\u7f6e\u5757\u5927\u5c0f\u53c2\u6570(-b),<\/p>\n<p>\u9996\u5148\u626b\u63cf\u574f\u9053<\/p>\n<p><code>badblocks -b 4096 -o \/root\/sdb.bad \/etc\/sdb<\/code><\/p>\n<p>\u7ecf\u8fc7\u6162\u957f\u7684\u65f6\u95f4\uff0c\u6211\u5011\u5f97\u5230\u4e86\u4e00\u4e2a\u6587\u4ef6\/root\/sdb.bad :<\/p>\n<p>16435904<\/p>\n<p>sdb \u67091\u4e2a\u574f\u5757<\/p>\n<p>\u5148\u7528dd\u5c3d\u91cf\u5907\u4efd\u574f\u5757<\/p>\n<p><code>dd if=\/dev\/sdb bs=4096 skip=16435904 of=\/tmp\/15435904.dat count=1<\/code><\/p>\n<p>\u5982\u679c\u663e\u793a\u8bfb\u53d6\u5b57\u8282\u6570\u662f0\u5c31\u591a\u8bd5\u51e0\u6b21, \u4e0d\u884c\u5c31\u53ef\u80fd\u4e22\u5931\u6b64\u5757\u6570\u636e, \u5012\u662f\u4e0d\u7528\u62c5\u5fc3,\u4e00\u822c\u4e0d\u4f1a\u6709\u592a\u5927\u95ee\u9898.<\/p>\n<p>\u7528badblocks\u7684\u5199\u6d4b\u8bd5\u529f\u80fd\uff0c\u5bf9\u8fd9\u4e9b\u574f\u5757\u8fdb\u884c\u91cd\u5199(\u6ce8\u610f! -w\u5199\u6d4b\u8bd5\u4f1a\u8986\u76d6\u6570\u636e)\uff1a<\/p>\n<p><code>badblocks -w -f \/dev\/sdb5 16435904 16435904<\/code><\/p>\n<p>\u5982\u679c\u524d\u9762\u7684\u64cd\u4f5c\u6709\u6210\u529f\u7684\u5907\u4efd\/tmp\/15435904.dat, \u5c31\u628a\u5b83\u5199\u56de:<\/p>\n<p><code>dd if=\/tmp\/15435904.dat of=\/dev\/sdb seek=15435904 bs=4096 count=1<\/code><\/p>\n<p>\u5176\u5b9e\u6211\u5011\u4e0d\u9700\u8981\u7b49\u5f85badblocks\u626b\u63cf\u5b8c\u6210\uff0c \u5c31\u53ef\u4ee5\u8fdb\u884c\u4fee\u590d\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>badblocks\u662f\u5bf9\u5757\u8bbe\u5907\u8fdb\u884c\u5904\u7406\uff0c \u6240\u4ee5\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u6302\u8f7d\u4e2d\u7684\u7cfb\u7edf\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u6570\u636e\u6bd4\u786c\u76d8\u503c\u94b1\uff0c \u8fd9\u53ea\u53ef\u4ee5\u4f5c\u4e3a\u4e34\u65f6\u63aa\u65bd\uff0c\u51fa\u73b0\u574f\u9053\uff0c \u8fd8\u662f\u5e94\u8be5\u6362\u786c\u76d8\uff0c\u73b0\u5728\u786c\u76d8\u4e0d\u8d35\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>btw<\/p>\n<p>\u5728\u4fee\u590d\u524d\u540e\uff0c\u5229\u7528smartctl\u00a0 \u5bf9\u78c1\u76d8\u8fdb\u884clong\u6d4b\u8bd5\u76842\u6b21\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n<p><code><code>web:~# smartctl -l selftest \/dev\/sdb<\/code><\/code><\/p>\n<p>smartctl version 5.38 [x86_64-unknown-linux-gnu] Copyright (C) 2002-8 Bruce Allen<\/p>\n<p>Home page is http:\/\/smartmontools.sourceforge.net\/<\/p>\n<p>&nbsp;<\/p>\n<p>=== START OF READ SMART DATA SECTION ===<\/p>\n<p>SMART Self-test log structure revision number 1<\/p>\n<p>Num\u00a0 Test_Description\u00a0\u00a0\u00a0 Status\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Remaining\u00a0 LifeTime(hours)\u00a0 LBA_of_first_error<\/p>\n<p># 1\u00a0 Short offline\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Completed without error\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 00%\u00a0\u00a0\u00a0\u00a0\u00a0 8308\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&#8211;<\/p>\n<p># 2\u00a0 Short offline\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Completed: read failure\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 10%\u00a0\u00a0\u00a0\u00a0\u00a0 8292\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 234908935<\/p>\n<p>&nbsp;<\/p>\n<p>\uff032\u662f\u4fee\u590d\u524d\u7684\u6d4b\u8bd5 \u5728234908935\u5904\u51fa\u73b0\u8bfb\u9519\u8bef\u3002<\/p>\n<p>#1\u662f\u4fee\u590d\u540e\u7684\u60c5\u51b5\u6ca1\u6709\u9519\u8bef<\/p>\n<p>&nbsp;<\/p>\n<p>\u4e0a\u9762\u662f\u5bf9\u786c\u76d8\u7684\u574f\u5757\u9010\u5757\u8fdb\u884c\u4fee\u590d\u7684\u65b9\u5f0f<\/p>\n<p>\u5f53\u7136\u53ef\u4ee5\u5199\u4e00\u4e2a\u811a\u672c\u628a\u8fd9\u4e9b\u547d\u4ee4\u8054\u8d77\u6765, badblocks \u4e5f\u53ef\u4ee5\u8fde\u7eed\u8986\u76d6\u4fee\u590d\u574f\u5757 ,2\u4e2a\u5757\u53f7\u7684\u53c2\u6570, \u540e\u9762\u4e00\u4e2a\u662f\u8981\u8986\u76d6\u7684\u5f00\u59cb\u5757\u6570,\u524d\u9762\u4e00\u4e2a\u662f\u7ed3\u675f\u5757\u6570.<\/p>\n<p>&nbsp;<\/p>\n<p>\u7528smartctl\u5bf9\u786c\u76d8\u8fdb\u884c\u6d4b\u8bd5\u7684\u65b9\u6cd5\u5982\u4e0b<\/p>\n<p>\u5728\u7ebf\u5feb\u901f\u6d4b\u8bd5\uff1a \u5927\u7ea62\u5206\u949f<\/p>\n<p><code>smartctl -t short \/dev\/sdb<\/code><\/p>\n<p>\u5728\u7ebf\u957f\u6d4b\u8bd5: (1T\u5927\u7ea64\u5c0f\u65f6)<\/p>\n<p><code>smartctl -t long \/dev\/sdb<\/code><\/p>\n<p>\u6b64\u5916\u8fd8\u6709\u51e0\u79cd\u6d4b\u8bd5\u6a21\u5f0f:offline, short, long, conveyance, select,M-N, pending,N, afterselect,[on|off], scttempint,N[,p]<\/p>\n<p>&nbsp;<\/p>\n<p>\u7ec8\u6b62\u6b63\u5728\u8fdb\u884c\u7684\u6d4b\u8bd5<\/p>\n<p><code>smartctl -X \/dev\/sdb<\/code><\/p>\n<p>&nbsp;<\/p>\n<p>\u5728\u6d4b\u8bd5\u7ed3\u675f\u540e\u83b7\u53d6\u6d4b\u8bd5\u7ed3\u679c:<\/p>\n<p>smatrctl -l selftest \/dev\/sdb<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>\u5907\u4efd\u574f\u786c\u76d8\u7684\u6574\u76d8\u6570\u636e\uff1a<\/p>\n<p>\u5982\u679c\u7528dd\u6765\u5907\u4efd\u574f\u786c\u76d8\u7684\u6574\u76d8\u6570\u636e\uff0c \u5343\u4e07\u8bb0\u4f4f\u8981\u589e\u52a0 conv=noerror,sync \u53c2\u6570\uff0c noerror\u662f\u9047\u5230\u8bfb\u9519\u8bef\u7ee7\u7eed\uff0c sync\u662f\u75280\u586b\u5145\u9519\u8bef\u7684\u6570\u636e\uff0c \u5426\u5219\u4f1a\u9020\u6210\u6570\u636e\u9519\u4f4d\uff0c \u786c\u76d8\u6620\u50cf\u5c31\u6bc1\u4e86\u3002<\/p>\n<p>\u6700\u597d\u662f\u7528dd_rescue\u6765\u505a\u786c\u76d8\u7684dump, \u80fd\u663e\u793a\u5f53\u524d\u7684dump\u901f\u5ea6\u548c\u5e73\u5747\u901f\u5ea6\u3002\u636e\u8bf4\u5b83\u8fd8\u53ef\u4ee5\u968f\u65f6\u7ec8\u6b62\uff0c \u5e76\u518d\u6b21\u7ee7\u7eed\uff0c\u53ef\u4ee5\u53cd\u5411\u7684\u505a\u6570\u636edump, \u4ece\u78c1\u76d8\u7684\u5c3e\u90e8\u5411\u524ddump\u3002<\/p>\n<p>\u5728debian\u4e0b\uff0c\u5b89\u88c5ddrescue\u8f6f\u4ef6\u5305\uff0c \u5c31\u53ef\u4ee5\u6267\u884cdd_rescue\u4e86:<\/p>\n<p><code>dd_rescue\u00a0 \/dev\/sdb \/home\/sdb.dump<\/code><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6d4b\u8bd5\u5757\uff1abadblocks -s -v -o sdbbadblocks.log \/dev\/sdb \u6d4b\u8bd5\u5757\uff1aba [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/www.wjxy.net.cn\/index.php?rest_route=\/wp\/v2\/posts\/2134"}],"collection":[{"href":"https:\/\/www.wjxy.net.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wjxy.net.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wjxy.net.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wjxy.net.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2134"}],"version-history":[{"count":5,"href":"https:\/\/www.wjxy.net.cn\/index.php?rest_route=\/wp\/v2\/posts\/2134\/revisions"}],"predecessor-version":[{"id":2378,"href":"https:\/\/www.wjxy.net.cn\/index.php?rest_route=\/wp\/v2\/posts\/2134\/revisions\/2378"}],"wp:attachment":[{"href":"https:\/\/www.wjxy.net.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wjxy.net.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wjxy.net.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}