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-11555 Lustre <p>It would be good to warn when importing a pool that does not have the <tt>multihost</tt> feature enabled, so that users are aware that their pool is exposed to potential data loss in case of double import.</p> <p>Ideally, this message would only be printed in the case that the OST is configured to be multi-homed (<tt>-<del>failnode</tt> or <tt></del>-servicenode</tt> configured), but it isn't clear that the configuration layer that understands peers knows the pool is ZFS and vice versa. Since we enable <tt>multihost</tt> for all new pools since 2.10.1 there will hopefully be a relatively smaller number of sites not using this feature. It is not harmful (though not useful) if it is enabled for ZFS 0.6.x, so it might be worthwhile to print a slightly different message for ZFS 0.6.x encouraging the system to be upgraded.</p> LU-11555

warn when mounting ZFS pools without "multihost" enabled

Improvement Major Resolved Fixed Nathaniel Clark Andreas Dilger Mon, 22 Oct 2018 21:15:40 +0000 Mon, 1 Apr 2019 14:11:51 +0000 Wed, 23 Jan 2019 16:26:09 +0000 Lustre 2.12.0 Lustre 2.10.5 Lustre 2.13.0 Lustre 2.12.1 0 3 <p>There's not a good way to do that on import, but we could probably do it on mount.</p> <p>Nathaniel Clark (nclark@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/33491" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/33491</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11555" title="warn when mounting ZFS pools without &quot;multihost&quot; enabled" class="issue-link" data-issue-key="LU-11555"><del>LU-11555</del></a> utils: ZFS check multihost enabled in read_ldd()<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 5c645d5a9726f67f9fec0a9b0d4d73f8bda8bc44</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/33491/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/33491/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11555" title="warn when mounting ZFS pools without &quot;multihost&quot; enabled" class="issue-link" data-issue-key="LU-11555"><del>LU-11555</del></a> utils: ZFS check multihost enabled in read_ldd()<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 5e62552e7fc6e9da4068bb29f62eb2cf7a42970e</p> <p>Should this be ported to 2.10.x and/or 2.12.x?</p> <p>Probably good to include in 2.12. </p> <p>Landed for 2.13</p> <p>Minh Diep (mdiep@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/34300" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34300</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11555" title="warn when mounting ZFS pools without &quot;multihost&quot; enabled" class="issue-link" data-issue-key="LU-11555"><del>LU-11555</del></a> utils: ZFS check multihost enabled in read_ldd()<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: 1<br/> Commit: 5ca3ada4555390fcd8b281a3f74ab4475a04a7cd</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/34300/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34300/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11555" title="warn when mounting ZFS pools without &quot;multihost&quot; enabled" class="issue-link" data-issue-key="LU-11555"><del>LU-11555</del></a> utils: ZFS check multihost enabled in read_ldd()<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: <br/> Commit: af58b117ec0e252de641e05722768cad95bba44f</p> Related Development Rank 1|i004qv: Rank (Obsolete) 9223372036854775807