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Lustre doesn't really care about the OS version w.r.t. Lustre version interop.
<div>Some sites have run ldiskfs MDTs and ZFS OSTs in the past for performance</div>
<div>reasons. The clients generally do not care about the backing filesystem type,</div>
<div><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">but we don't test that ourselves.</span></div>
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<div>On Sep 30, 2025, at 14:37, Alex Vodeyko via lustre-discuss <lustre-discuss@lists.lustre.org> wrote:</div>
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<div>Hi,<br>
<br>
what do you think if I run the same lustre server version=b2_15-next<br>
on rocky8.10 MDSes and rocky9.6 OSSes (unpatched, zfs-only built<br>
successfully). Should this OS mixing be ok?<br>
<br>
I'd off course prefer the same versions, but I have to stay on<br>
lustre-2.15 (for 2.12 clients compatibility). And I have to have<br>
ldiskfs-based MDTs.<br>
<br>
Thanks,<br>
Alex<br>
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<div>Cheers, Andreas</div>
<div>—</div>
<div>Andreas Dilger</div>
<div>Lustre Principal Architect</div>
<div>Whamcloud/DDN</div>
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