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<p class="MsoNormal"><span lang="EN-US">Kurt<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">My recommendation would be to use 2.10.5 (or even 2.12 which may well be out before you actually execute on your plan) rather than 2.11. 2.10.5 came out relatively recently and shipped with ZFS 0.7.9 by default whereas
2.11 shipped with the latest at the time of its release (ZFS 0.7.6). While 2.11 may still work with ZFS 0.7.9 I expect that there would be other ways that you would find that it is lagging behind more current releases that have been kept up to date with bugfixes
and supporting newer distros etc.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Peter<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">lustre-discuss <lustre-discuss-bounces@lists.lustre.org> on behalf of Kurt Strosahl <strosahl@jlab.org><br>
<b>Date: </b>Wednesday, October 17, 2018 at 1:20 PM<br>
<b>To: </b>"lustre-discuss@lists.lustre.org" <lustre-discuss@lists.lustre.org><br>
<b>Subject: </b>[lustre-discuss] lustre 2.10.5 or 2.11.0<o:p></o:p></span></p>
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<p><span style="font-size:12.0pt;color:black">Good Afternoon,<o:p></o:p></span></p>
<p><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p><span style="font-size:12.0pt;color:black"> I'm in the early planning stages of a lustre upgrade. We are going to be moving from 2.5 to either 2.10 or 2.11, possibly by standing up a new lustre file system alongside the existing one and migrating the
data over. I'm wondering if anyone has had specific experiences (either positive or negative) with either of these versions.<o:p></o:p></span></p>
<p><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p><span style="font-size:12.0pt;color:black">I was also looking for, but couldn't seem to find, a mapping of zfs versions to lustre versions. Am I correct in my assumption that zfs 0.7.9 will work with either version?<o:p></o:p></span></p>
<p><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p><span style="font-size:12.0pt;color:black">Finally, does anyone have experience with zfs as the backing for the MDS/MDT?<o:p></o:p></span></p>
<p><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p><span style="font-size:12.0pt;color:black">w/r,<o:p></o:p></span></p>
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<p><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">Kurt J. Strosahl<br>
System Administrator: HPC, Lustre<br>
Scientific Computing Group, Thomas Jefferson National Accelerator Facility</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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