[Users] oVirt with UPS Shutdown Software

[Omer Frenkel]

----- Original Message -----
> From: "Itamar Heim" <iheim at redhat.com>
> To: "Omer Frenkel" <ofrenkel at redhat.com>
> Cc: "Neil" <nwilson123 at gmail.com>, users at 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 at gmail.com>
> >> To: users at 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)?
> 

to properly close storage connections, that what i had in mind

> >
> >> 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.
> >> _______________________________________________
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> >> Users at ovirt.org
> >> http://lists.ovirt.org/mailman/listinfo/users
> >>
> > _______________________________________________
> > Users mailing list
> > Users at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> >
> 
> 
>