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<p style="margin-top:0;margin-bottom:0">Oh, yes. Absolutely. Many sites are running 2.5, a few are evening running 1.8.</p>
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<p style="margin-top:0;margin-bottom:0">It's not "officially supported", but that's all those matrices indicate.</p>
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<p style="margin-top:0;margin-bottom:0">Sorry, assuming 2.7 or newer isn't safe yet. 2.5 may still be the largest single release by usage.</p>
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<p style="margin-top:0;margin-bottom:0">Check these slides for an update from this year on what's being run:<br>
<a href="http://cdn.opensfs.org/wp-content/uploads/2018/04/Jones-Community_Release_Update_LUG_2018.pdf" class="OWAAutoLink" id="LPlnk415081" previewremoved="true">http://cdn.opensfs.org/wp-content/uploads/2018/04/Jones-Community_Release_Update_LUG_2018.pdf</a><br>
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<p style="margin-top:0;margin-bottom:0">- Patrick</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> lustre-discuss <lustre-discuss-bounces@lists.lustre.org> on behalf of Latham, Robert J. <robl@mcs.anl.gov><br>
<b>Sent:</b> Wednesday, August 15, 2018 9:40:31 AM<br>
<b>To:</b> lustre-discuss@lists.lustre.org<br>
<b>Subject:</b> [lustre-discuss] oldest lustre deployment?</font>
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<div>I am looking at the patch to ROMIO to support the new Progressive File</div>
<div>Layout feature:</div>
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<div><a href="https://jira.whamcloud.com/browse/LU-9657">https://jira.whamcloud.com/browse/LU-9657</a></div>
<div>and</div>
<div><a href="https://review.whamcloud.com/#/c/27869/10">https://review.whamcloud.com/#/c/27869/10</a></div>
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<div>This change greatly reworks ROIMIO's support for determining striping count and stripe size. I'm all for using the 'llapi_layout' routines instead of bare ioctl() calls, but llapi_layout did not show up until 2.7 I think.</div>
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<div>Is there any chance that some enviroment out there is still running a</div>
<div>lustre from 2014 or earlier?</div>
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<div>Nothing before 2.10 shows up in the "community matrix"</div>
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<div><a href="https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix">https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix</a></div>
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<div>but I do see some fairly old versions in the "intel releases"</div>
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<div>https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix+-+Intel+Releases</div>
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<div>==rob</div>
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