Hi, Thank you all for offering such nice VM service! I've just read the LWN news. I'm fine with even longer offline time since Debian related development is quite flexible.
On Tue, Apr 02, 2019 at 04:33:37PM -0700, Lance Albertson wrote: > All, > > I need to have a short outage for all POWER9 virtual machines running on our > cluster. I've been doing kernel upgrades on the hypervisors and I ran into an > interesting problem on the POWER9 machines. > > For whatever reason, I'm not able to complete a live migration between a > POWER9 > hypervisor running the 4.14 kernel onto a machine which has the newer 4.19 > kernel. I've confirmed that once the a VM has been moved to a machine running > the newer kernel, live migrations work between nodes running the newer kernel. > I did not run into this problem with the POWER8 nodes. > > My plan is to issue a "migrate" command for each POWER9 VM running at 9AM PDT > (1600 UTC) which will gracefully shutdown the VM and power it up on > another server. I expect the outage should last no more than a few minutes per > VM. > > If this is a problem for your project, please let me know ASAP. > > Thanks- > > -- > Lance Albertson > Director > Oregon State University | Open Source Lab > _______________________________________________ > openpower mailing list > openpo...@osuosl.org > https://lists.osuosl.org/mailman/listinfo/openpower _______________________________________________ openpower mailing list openpo...@osuosl.org https://lists.osuosl.org/mailman/listinfo/openpower
