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<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;mso-fareast-language:EN-US">Hi<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;mso-fareast-language:EN-US">Assuming you are talking about GPFS QoS and not any fabric QoS. It would work with any supported fabric, ESS or not. It is a filesystem feature well above all the fabrics
and HW. Limits IOPS per class<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;mso-fareast-language:EN-US"><a href="https://www.ibm.com/docs/en/storage-scale/5.1.8?topic=reference-mmchqos-command">https://www.ibm.com/docs/en/storage-scale/5.1.8?topic=reference-mmchqos-command</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;mso-fareast-language:EN-US">I recommend (depending on number of nodes and seconds) fine-stats so then you can visualize which PID on which client node is doing what. I believe I did something of
that on SSUG London 18 or 19<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="en-FI" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;mso-ligatures:standardcontextual">--</span><span lang="EN-GB" style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="en-FI" style="font-size:11.0pt;mso-ligatures:standardcontextual">Ystävällisin terveisin/Regards/Saludos/Salutations/Salutacions<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="en-FI" style="font-size:11.0pt;mso-ligatures:standardcontextual">Luis Bolinches<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="en-FI" style="font-size:11.0pt;mso-ligatures:standardcontextual">Executive IT Specialist<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="en-FI" style="font-size:11.0pt;mso-ligatures:standardcontextual">IBM Storage Scale
</span><span lang="EN-GB" style="font-size:11.0pt;mso-ligatures:standardcontextual">Server (formerly ESS) developer
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="en-FI" style="font-size:11.0pt;mso-ligatures:standardcontextual">Phone: +358503112585<o:p></o:p></span></p>
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<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="en-FI" style="font-size:11.0pt;mso-ligatures:standardcontextual">Ab IBM Finland Oy<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="en-FI" style="font-size:11.0pt;mso-ligatures:standardcontextual">Toinen linja 7<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="en-FI" style="font-size:11.0pt;mso-ligatures:standardcontextual">00530 Helsinki<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="en-FI" style="font-size:11.0pt;mso-ligatures:standardcontextual">Uusimaa - Finland<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;mso-ligatures:standardcontextual">Visitors entrance:</span><span lang="en-FI" style="font-size:11.0pt;mso-ligatures:standardcontextual"> Siltasaarenkatu 22<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="en-FI" style="font-size:11.0pt;mso-ligatures:standardcontextual">"If you always give you will always have" -- Anonymous<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> gpfsug-discuss <gpfsug-discuss-bounces@gpfsug.org>
<b>On Behalf Of </b>Thomas Bernecker<br>
<b>Sent:</b> Thursday, 7 September 2023 11.36<br>
<b>To:</b> gpfsug-discuss@gpfsug.org<br>
<b>Subject:</b> [EXTERNAL] [gpfsug-discuss] Spectrum Scale, InfiniBand and QoS<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white">Dear all, we recently found this presentation from 2021: https: //www. spectrumscaleug. org/wp-content/uploads/2021/05/SSSD21DE-06-Improving-Spectrum-Scale-performance-using-RDMA. pdf
On page 10 it explains by setting the RDMA device in a specific <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;mso-ligatures:standardcontextual">Dear all,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;mso-ligatures:standardcontextual">we recently found this presentation from 2021:
<a href="https://www.spectrumscaleug.org/wp-content/uploads/2021/05/SSSD21DE-06-Improving-Spectrum-Scale-performance-using-RDMA.pdf">https://www.spectrumscaleug.org/wp-content/uploads/2021/05/SSSD21DE-06-Improving-Spectrum-Scale-performance-using-RDMA.pdf</a> On page 10 it explains by setting the RDMA device in a specific way one could employ QoS with InfiniBand, which is something we would
like to achieve as well. Has anyone a working environment using QoS with InfiniBand outside of the ESS domain? If so, would you share your experience? Sorry for asking a rather broad question, but it seems that this is not well-known stuff …<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="DE" style="font-size:11.0pt;mso-ligatures:standardcontextual;mso-fareast-language:DE">Best regards / Mit freundlichem Gruß<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="font-size:11.0pt;mso-ligatures:standardcontextual;mso-fareast-language:DE">Thomas Bernecker<o:p></o:p></span></p>
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