https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-1732 Lustre <p>This ticket is for tracking enabling the wide striping feature ("-O large_xattr") by default for newly-formatted ldiskfs filesystems.</p> <p>Without this option, the maximum OST stripe count will be limited to 160 stripes, instead of the advertised maximum of 2000 stripes.</p> LU-1732

enable wide striping by default

Bug Major Resolved Fixed Patrick Farrell Andreas Dilger Fri, 10 Aug 2012 00:22:26 +0000 Fri, 7 Aug 2020 16:51:49 +0000 Fri, 12 Jul 2019 12:40:30 +0000 Lustre 2.4.0 Lustre 2.13.0 0 5 <p>Patch at <a href="http://review.whamcloud.com/4315" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/4315</a>.</p> <p>Note that one minor concern about enabling this by default is that this feature is not included in the upstream ext4/e2fsprogs yet due to <a href="https://jira.whamcloud.com/browse/LU-908" title="multi-block xattr support" class="issue-link" data-issue-key="LU-908"><del>LU-908</del></a>, so I'd prefer to limit this to only systems that absolutely need this feature.</p> <p>Closing this until such a time that <a href="https://jira.whamcloud.com/browse/LU-908" title="multi-block xattr support" class="issue-link" data-issue-key="LU-908"><del>LU-908</del></a> is resolved.</p> <p>The upstream e2fsprogs now has support for the <tt>ea_inode</tt> feature, with some minor (but backward compatible) changes to the on-disk format, so this feature is much less risky to enable.</p> <p>Just for future reference, enabling the <tt>ea_inode</tt> feature caused some OOM issues in the VMs used for review testing for versions 1-7 of the 4315 patch, because ldiskfs is returning <tt>ocd_max_easize = 1MB</tt> by default. </p> <p>The <tt>ea_inode</tt> feature has been enabled by default in testing via patch <a href="https://review.whamcloud.com/28425" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/28425</a> "<tt><a href="https://jira.whamcloud.com/browse/LU-9846" title="Overstriping - more than stripe per OST per component" class="issue-link" data-issue-key="LU-9846"><del>LU-9846</del></a> lod: Add overstriping support</tt>" since 2019-06-01.</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/4315/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/4315/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-1732" title="enable wide striping by default " class="issue-link" data-issue-key="LU-1732"><del>LU-1732</del></a> utils: allow ldiskfs wide striping with ea_inode<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: f0bc77106dad8db4b672928f3c81f5892a6550e1</p> <p>Landed for 2.13</p> Duplicate LU-11688 Related LU-10912 LU-9724 LU-908 LU-11215 LU-11246 LU-11440 Development Rank 1|hzv307: Rank (Obsolete) 3986 Severity Story Points 1.0