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Handling File System Errors

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* Using e2fsck on a backing file system, see [http://wiki.lustre.org/manual/LustreManual18_HTML/LustreRecovery.html#50598012_83826 Section 19.5: ''Recovering from Errors or Corruption on a Backing File System''] in the [[Lustre Documentation|''Lustre Operations Manual'']].
 
* Using e2fsck on a backing file system, see [http://wiki.lustre.org/manual/LustreManual18_HTML/LustreRecovery.html#50598012_83826 Section 19.5: ''Recovering from Errors or Corruption on a Backing File System''] in the [[Lustre Documentation|''Lustre Operations Manual'']].
* Running e2fsck+lfsck on a corrupted Lustre file system, see [http://wiki.lustre.org/manual/LustreManual18_HTML/LustreRecovery.html#50598012_373650 Section 19.6: ''Recovering from Corruption in the Lustre File System''] in the [[Lustre Documentation|''Lustre Operations Manual'']].
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* Running e2fsck+lfsck on a corrupted Lustre file system, see [http://wiki.lustre.org/manual/LustreManual18_HTML/LustreRecovery.html#50598012_37365 Section 19.6: ''Recovering from Corruption in the Lustre File System''] in the [[Lustre Documentation|''Lustre Operations Manual'']].
 
* Addressing orphaned objects, see [http://wiki.lustre.org/manual/LustreManual18_HTML/LustreRecovery.html#50598012_pgfId-1290574 Section 19.6.1: ''Working with Orphaned Objects''] in the [[Lustre Documentation|''Lustre Operations Manual'']].
 
* Addressing orphaned objects, see [http://wiki.lustre.org/manual/LustreManual18_HTML/LustreRecovery.html#50598012_pgfId-1290574 Section 19.6.1: ''Working with Orphaned Objects''] in the [[Lustre Documentation|''Lustre Operations Manual'']].
  
 
For more information about ''lfsck'', see [http://wiki.lustre.org/manual/LustreManual18_HTML/UserUtilitiesMan1_HTML.html#50638894_91700 Section 27.2: ''lfsck''] in the [[Lustre Documentation|''Lustre Operations Manual'']].
 
For more information about ''lfsck'', see [http://wiki.lustre.org/manual/LustreManual18_HTML/UserUtilitiesMan1_HTML.html#50638894_91700 Section 27.2: ''lfsck''] in the [[Lustre Documentation|''Lustre Operations Manual'']].

Revision as of 19:47, 27 March 2010

(Updated: Mar 2010)

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 Lustre™-specific fsck tool that checks the coherency of a running Lustre file system as a whole.

A Lustre-specific version of e2fsprogs can be found at http://downloads.lustre.org/public/tools/e2fsprogs/. A quilt patchset of all changes to the vanilla e2fsprogs is available in e2fsprogs-{version}-patches.tgz.

For information about:

For more information about lfsck, see Section 27.2: lfsck in the Lustre Operations Manual.

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