WARNING: This is the _old_ Lustre wiki, and it is in the process of being retired. The information found here is all likely to be out of date. Please search the new wiki for more up to date information.

Difference between revisions of "Handling File System Errors"

From Obsolete Lustre Wiki
Jump to navigationJump to search
 
(17 intermediate revisions by 2 users not shown)
Line 1: Line 1:
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.
+
<small>''(Updated: Mar 2010)''</small>
  
For information on the following topics, see [[Fsck Support]].
+
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.  
  
* Obtaining e2fsck support for Lustre  
+
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''.
* Using e2fsck on a backing file system  19.5
 
* Running e2fsck+lfsck on a corrupted Lustre file system
 
  
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 information about:  
  
''(Updated 01/10)''
+
* 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''].
 +
* 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''].
 +
* 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''].
 +
 
 +
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''].

Latest revision as of 07:06, 20 January 2011

(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 32.3: lfsck in the Lustre Operations Manual.