http://wiki.lustre.org/index.php?title=Handling_File_System_Errors&feed=atom&action=historyHandling File System Errors - Revision history2024-03-29T10:09:46ZRevision history for this page on the wikiMediaWiki 1.39.3http://wiki.lustre.org/index.php?title=Handling_File_System_Errors&diff=1841&oldid=prevKenRawlings: Initial creation as part of accelerated wiki migration2016-08-25T14:40:27Z<p>Initial creation as part of accelerated wiki migration</p>
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<small>''(Updated: Mar 2010)''</small><br />
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From time to time, usually due to catastrophic disk / RAID failures, it may be necessary to repair the backing file system of an OST or MDT to correct file system errors. This is done using a special version of the ''e2fsck'' tool. In such cases, it may also be useful to run ''lfsck'', a Lustreā¢-specific ''fsck'' tool that checks the coherency of a running Lustre file system as a whole. <br />
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A Lustre-specific version of ''e2fsprogs'' can be found at [http://downloads.lustre.org/public/tools/e2fsprogs/ http://downloads.lustre.org/public/tools/e2fsprogs/]. A quilt patchset of all changes to the vanilla e2fsprogs is available in ''e2fsprogs-{version}-patches.tgz''.<br />
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For information about: <br />
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* Using e2fsck on a backing file system, see [http://wiki.lustre.org/manual/LustreManual20_HTML/TroubleShootingRecovery.html#50438225_pgfId-1292068 Section 27.1: ''Recovering from Errors or Corruption on a Backing File System''] in the [http://wiki.lustre.org/manual/LustreManual20_HTML/index.html ''Lustre Operations Manual''].<br />
* Running e2fsck+lfsck on a corrupted Lustre file system, see [http://wiki.lustre.org/manual/LustreManual20_HTML/TroubleShootingRecovery.html#50438225_pgfId-1291230 Section 27.2: ''Recovering from Corruption in the Lustre File System''] in the [http://wiki.lustre.org/manual/LustreManual20_HTML/index.html ''Lustre Operations Manual''].<br />
* Addressing orphaned objects, see [http://wiki.lustre.org/manual/LustreManual20_HTML/TroubleShootingRecovery.html#50438225_pgfId-1290574 Section 27.2.1: ''Working with Orphaned Objects''] in the [http://wiki.lustre.org/manual/LustreManual20_HTML/index.html ''Lustre Operations Manual''].<br />
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For more information about ''lfsck'', see [http://wiki.lustre.org/manual/LustreManual20_HTML/UserUtilities_HTML.html#50438206_pgfId-1305844 Section 32.3: ''lfsck''] in the [http://wiki.lustre.org/manual/LustreManual20_HTML/index.html ''Lustre Operations Manual''].<br />
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[[Category: NeedsReview]]</div>KenRawlings