[ovirt-users] Ovirt and power saving

[Mario Giammarco]

2015-01-13 18:54 GMT+01:00 Donny Davis <donny at cloudspin.me>:

> The powersaving policy is only applicable to the hosts, so if your low
> utilization threshold is below the power policy when you pause the vm, it
> should place the host into maintenance and migrate the paused vm (may cause
> problems).
>

Thanks it is the exact reply I was hoping for


>  I cannot test on my deployment, I am already down too many machines…
> however if you wait a couple days I can get you’re an answer as to whether
> it works on my deployment or not J
>

It would be the icing on the cake!

>
>
> Donny D
>
>
>
> *From:* users-bounces at ovirt.org [mailto:users-bounces at ovirt.org] *On
> Behalf Of *Mario Giammarco
> *Sent:* Tuesday, January 13, 2015 8:23 AM
> *To:* Artyom Lukianov
> *Cc:* users at ovirt.org
>
> *Subject:* Re: [ovirt-users] Ovirt and power saving
>
>
>
> I mean that I know that I can set a power saving policy, it is a very nice
> thing.
>
> I need to be sure that I can pause/suspend (not shutdown) virtual machines.
>
> I also need that, if I suspend enough virtual machines ovirt shutdowns
> server to save power following the power save policy.
>
>
>
> Otherwise is it possible to manually shutdown a server forcing ovirt to
> migrate vms to the only one powered up?
>
>
>
> Basically it is a "manual power saving" mode.
>
>
>
> Thanks again,
>
> Mario
>
>
>
> 2015-01-13 14:21 GMT+01:00 Artyom Lukianov <alukiano at redhat.com>:
>
> Not really understand you, what you mean by "you can pause vm and so
> trigger the low
> utilization parameter"?
>
> ----- Original Message -----
> From: "Mario Giammarco" <mgiammarco at gmail.com>
>
> To: "Artyom Lukianov" <alukiano at redhat.com>
> Cc: users at ovirt.org
> Sent: Tuesday, January 13, 2015 3:05:06 PM
> Subject: Re: [ovirt-users] Ovirt and power saving
>
> Thanks for reply.
> I just want now to  be sure that you can pause vm and so trigger the low
> utilization parameter
>
> 2015-01-13 12:45 GMT+01:00 Artyom Lukianov <alukiano at redhat.com>:
>
> > We have power saving policy that also have possibility to poweroff
> > hosts(via power management), you can configure power saving policy
> > parameters for you purpose(HighUtilization can have values from 50-100
> and
> > LowUtilization 0-49), so you can set LowUtilization=0 and
> > HighUtilization=50, so load balancing will try migrate all vms on one
> > host(if cpu utilization less that 50). And also you can set parameter
> > "HostsInReserve" to 0 if you do not want additional hosts in reserve.
> >
> > ----- Original Message -----
> > From: "Mario Giammarco" <mgiammarco at gmail.com>
> > To: users at ovirt.org
> > Sent: Tuesday, January 13, 2015 1:30:38 PM
> > Subject: [ovirt-users] Ovirt and power saving
> >
> > Hello,
> > I would like to ask if it is possible to do this use case with ovirt:
> >
> > 1) two servers powered on
> > 2) operator suspend some virtual machines
> > 3) load falls down
> > 4) ovirt shutdown one server
> >
> > Then operator unpauses virtual machines and ovirt starts again the 2nd
> > server.
> >
> > Thanks,
> > Mario
> >
> > _______________________________________________
> > Users mailing list
> > Users at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> >
>
>
>
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