From: "Neil" <nwilson123(a)gmail.com&gt; To: users(a)ovirt.org Sent: Tuesday, August 21, 2012 6:05:17 PM Subject: [Users] oVirt with UPS Shutdown Software Hi guys, I've looked around briefly and can't seem to find much info on this, so please excuse me if this has already been asked/documented. I have a UPS with SNMP support and I started installing the management software(IPP) that it comes with and then it occurred to me that the shutdown sequence of servers with oVirt 3.1 would be quite critical. Is there any documentation on shut down sequences or does anyone know what the recommended way of handling power failures are? My thinking is that when a power failure is detected by the UPS software running on the ovirt-engine machine, the VM's need to be shutdown gracefully, and then the data center needs to be put into maintenance, before the hosts are eventually shutdown, and then finally the ovirt-engine needs to be halted.

Any thoughts or ideas/suggestions on the above, can the ovirt-engine somehow be told to shutdown the VM's and hosts etc?

Thank you very much. Regards. Neil Wilson. _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users

From: "Itamar Heim" <iheim(a)redhat.com&gt; To: "Omer Frenkel" <ofrenkel(a)redhat.com&gt; Cc: "Neil" <nwilson123(a)gmail.com&gt;, users(a)ovirt.org Sent: Tuesday, August 21, 2012 11:10:33 PM Subject: Re: [Users] oVirt with UPS Shutdown Software On 08/21/2012 07:01 PM, Omer Frenkel wrote: > > > ----- Original Message ----- >> From: "Neil" <nwilson123(a)gmail.com&gt; >> To: users(a)ovirt.org >> Sent: Tuesday, August 21, 2012 6:05:17 PM >> Subject: [Users] oVirt with UPS Shutdown Software >> >> Hi guys, >> >> I've looked around briefly and can't seem to find much info on >> this, >> so please excuse me if this has already been asked/documented. >> >> I have a UPS with SNMP support and I started installing the >> management >> software(IPP) that it comes with and then it occurred to me that >> the >> shutdown sequence of servers with oVirt 3.1 would be quite >> critical. >> Is there any documentation on shut down sequences or does anyone >> know >> what the recommended way of handling power failures are? >> >> My thinking is that when a power failure is detected by the UPS >> software running on the ovirt-engine machine, the VM's need to be >> shutdown gracefully, and then the data center needs to be put into >> maintenance, before the hosts are eventually shutdown, and then >> finally the ovirt-engine needs to be halted. >> > > sounds right to me: > shutdown the vms, > put data-center to maintenance (actually means put all domains to > maintenance - i guess this part is nice to have but not must) > then put hosts to maintenance (not sure you mentioned that) > then you can shutdown any server in any order. why move the DC to maint or the host to maint (unless other hosts are not affected by this)?

> >> Any thoughts or ideas/suggestions on the above, can the >> ovirt-engine >> somehow be told to shutdown the VM's and hosts etc? >> > > well writing a script to do that shouldn't be hard using the API, > but the question how to trigger it? (i'm not familiar with the UPS > software capabilities) > >> Thank you very much. >> >> Regards. >> >> Neil Wilson. >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users >