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Handling File System Errors: Difference between revisions
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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. It may also be useful to run ''lfsck'' in such cases. This is a Lustre™-specific tool that checks the coherency of a running Lustre file system as a whole. | 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. It may also be useful to run ''lfsck'' in such cases. This is a Lustre™-specific 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/ 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 ''e2fsck'', see the [[Lustre Documentation|''Lustre Operations Manual'']] including: | |||
* Using e2fsck on a backing file system in [http://wiki.lustre.org/manual/LustreManual18_HTML/LustreRecovery.html#50638972_pgfId-1289915 Section 19.5: ''Recovering from Errors or Corruption on a Backing File System''] | |||
* Running e2fsck+lfsck on a corrupted Lustre file system in [http://wiki.lustre.org/manual/LustreManual18_HTML/UserUtilitiesMan1_HTML.html#50638894_91700 Section 19.6: ''Recovering from Corruption in the Lustre File System''] | |||
''(Updated | For more information about ''lfsck'', see [http://wiki.lustre.org/manual/LustreManual18_HTML/LustreRecovery.html#50638972_pgfId-1291230 Section 27.2: ''lfsck''] in the [[Lustre Documentation|''Lustre Operations Manual'']]. | ||
''(Updated 02/10)'' |
Revision as of 12:53, 19 February 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. It may also be useful to run lfsck in such cases. This is a Lustre™-specific 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 e2fsck, see the Lustre Operations Manual including:
- Using e2fsck on a backing file system in Section 19.5: Recovering from Errors or Corruption on a Backing File System
- Running e2fsck+lfsck on a corrupted Lustre file system in Section 19.6: Recovering from Corruption in the Lustre File System
For more information about lfsck, see Section 27.2: lfsck in the Lustre Operations Manual.
(Updated 02/10)