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<div dir="ltr" data-setdir="false">Hello, </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I have seen people do this to move manager node traffic off of the NSD servers, it is one way to help scale the cluster as the manager RPC traffic doesn't need to contend with the NSD servers for bandwidth. If you want the nodes to be able to participate in disk maintenance (mmfsck, mmrestripefs) make sure they have enough pagepool as a small pagepool could impact the performance of these operations. </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Jim Doherty</div><div> </div>
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On Monday, June 7, 2021, 08:55:49 AM EDT, Leonardo Sala <leonardo.sala@psi.ch> wrote:
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<p><font face="monospace">Hallo,</font></p>
<p><font face="monospace">we do have multiple bare-metal GPFS
clusters with infiniband fabric, and I am actually considering
adding some VMs in the mix, to perform admin tasks (so that the
bare metal servers do not need passwordless ssh keys) and quorum
nodes. Has anybody tried this? What could be the drawbacks /
issues at GPFS level?</font></p>
<p><font face="monospace">Thanks a lot for the insights!</font></p>
<p><font face="monospace">cheers</font></p>
<p><font face="monospace">leo</font><br>
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<pre class="yiv6333531044moz-signature">--
Paul Scherrer Institut
Dr. Leonardo Sala
Group Leader High Performance Computing
Deputy Section Head Science IT
Science IT
WHGA/036
Forschungstrasse 111
5232 Villigen PSI
Switzerland
Phone: +41 56 310 3369
<a rel="nofollow noopener noreferrer" class="yiv6333531044moz-txt-link-abbreviated" ymailto="mailto:leonardo.sala@psi.ch" target="_blank" href="mailto:leonardo.sala@psi.ch">leonardo.sala@psi.ch</a>
<a rel="nofollow noopener noreferrer" class="yiv6333531044moz-txt-link-abbreviated" target="_blank" href="http://www.psi.ch">www.psi.ch</a></pre>
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