PFS-JIRA https://pfspipe.ipmu.jp/jira This file is an XML representation of an issue en-us 8.3.4 803005 13-09-2019 [INSTRM-389] Add cache='none' to virt xml https://pfspipe.ipmu.jp/jira/browse/INSTRM-389 Instrument control development <p>To be capable with hot migration at the production, add cache='none' to locally attached storage.</p> <p>also refer subaruif #430 at <a href="https://pfs.ipmu.jp/pipermail/subaruif-software/2018q2/000429.html" class="external-link" rel="nofollow">https://pfs.ipmu.jp/pipermail/subaruif-software/2018q2/000429.html</a></p> INSTRM-389 Add cache='none' to virt xml Task Normal Won't Fix Won't Fix Yoshida, Hiroshige shimono Thu, 21 Jun 2018 08:17:55 +0000 Tue, 14 Mar 2023 07:18:39 +0000 Tue, 14 Mar 2023 07:18:39 +0000 ics_production 0 1 <p>Thank you for your information. We will test this on Summit system with one of lf vms.<br/> Once we finish it, will update status here.</p> <p> </p> <p><a href="https://pfspipe.ipmu.jp/jira/secure/ViewProfile.jspa?name=atsushi.shimono" class="user-hover" rel="atsushi.shimono">shimono</a> san</p> <p>We have tested hot migration, but it was not successful...</p> <p><span class="error">&#91;Status&#93;</span></p> <ul class="alternate" type="square"> <li>From vm host perspective, it seemed like a vm guest was moved from one host to another.<br/>   (i.e. with virsh list --all)</li> </ul> <ul class="alternate" type="square"> <li>After hot migration, there was no network connectivity to the vm guest.<br/>   (I assume this is because of learned vm guest's MAC address stayed on the same port on pfs core and switch not being able to handle L2 communication...)</li> </ul> <p>&gt;- service connectability during live migration has not tested<br/> &gt;<br/> Does this one mean what I see now?</p> <p>I will do a little bit more research, but could you let us know the hardware connection among IPMU servers and network devices you tested hot migration?</p> <p>P.S<br/> This is just comment for <span class="error">&#91;PFS-Soft-Subaru:423&#93;</span> . It might be obvious, but we need to redefine VM guest as we modify .xml file.</p> <p>Again thank you for sharing this info, shimono-san.</p> <p> </p> <p>oh,,,<br/> never mind regarding MAC address...</p> <p>`service connectability during live migration` is on a VM guest moving from one to another, not before migration started nor after migration finished.</p> <p>target VM guests has two configurations, one is only with one network (PFS), another is with two networks (PFS, IPMU). PFS has two switches, cisco 2970 and fujitsu SR-S324, IPMU is by DELL 5426.<br/> VM hosts on PFS network was connected through two switches, like hostA - 2970 <del>(lacp)</del> SR-S324 - hostB.</p> <p>if you could not solve issue, please print `virsh dumpxml` and `brctl show` (here or subaruif ml for closed).</p> <p>No demand now. Note that Yoshida-san has been hot-migration of a few servers at the summit.</p> Development Rank 0|ii0593: