The powersaving policy is only applicable to the hosts, so if your =3D low utilization threshold is below the power policy when you pause the =3D vm, it should place the host into maintenance and migrate the paused vm =3D (may cause problems). =3DC2=3DA0I cannot test on my deployment, I am alread= y =3D down too many machines=3DE2=3D80=3DA6 however if you wait a couple days I c= an =3D get you=3DE2=3D80=3D99re an answer as to whether it works on my deployment = or =3D not J

Donny D

From:= =3D = =3D users-bounces(a)ovirt.org [mailto:users-bounces(a)ovirt.org] On Behalf O= f =3D Mario Giammarco
Sent: Tuesday, January 13, 2015 8:23 =3D AM
To: Artyom Lukianov
Cc: =3D users(a)ovirt.org
Subject: Re: [ovirt-users] Ovirt and power =3D saving

I mean= =3D that I know that I can set a power saving policy, it is a very nice =3D thing.

I need to be sure that I = =3D can pause/suspend (not shutdown) virtual =3D machines.

I also need =3D that, if I suspend enough virtual machines ovirt shutdowns server to =3D save power following the power save policy.

Otherwise is it possible to manually shutdown a server = =3D forcing ovirt to migrate vms to the only one powered =3D up?

Basically it is a "manual power saving" =3D mode.

Thanks again,

Mario

2015-01-13 14:21 GMT+01:00 Artyom Lukianov <alukiano(a)redhat.com>:

Not really understand you, what you mean by "you = =3D can pause vm and so trigger the low
utilization =3D parameter"?

----- Original Message =3D -----
From: "Mario Giammarco" =3D <mgiammarco(a)gmail.com><=3D o:p>

To: "Artyom =3D Lukianov" <alukiano(a)redhat.com>
Cc= : =3D users(a)ovirt.org
Sent: Tuesd= ay, =3D January 13, 2015 3:05:06 PM
Subject: Re: [ovirt-users] Ovirt and =3D power saving

Thanks for reply.
I just want now to be =3D sure that you can pause vm and so trigger the low
utilization =3D parameter

2015-01-13 12:45 GMT+01:00 Artyom Lukianov <alukiano(a)redhat.com>:
<= br>&=3D gt; We have power saving policy that also have possibility to =3D poweroff
> hosts(via power management), you can configure power =3D saving policy
> parameters for you purpose(HighUtilization can =3D have values from 50-100 and
> LowUtilization 0-49), so you can set = =3D LowUtilization=3D3D0 and
> HighUtilization=3D3D50, so load balancing = =3D will try migrate all vms on one
> host(if cpu utilization less =3D that 50). And also you can set parameter
> =3D "HostsInReserve" to 0 if you do not want additional hosts in =3D reserve.
>
> ----- Original Message -----
> From: =3D "Mario Giammarco" <mgiammarco(a)gmail.com>
= >=3D To: users(a)ovirt.org
> = =3D Sent: Tuesday, January 13, 2015 1:30:38 PM
> Subject: =3D [ovirt-users] Ovirt and power saving
>
> Hello,
> I =3D would like to ask if it is possible to do this use case with =3D ovirt:
>
> 1) two servers powered on
> 2) operator =3D suspend some virtual machines
> 3) load falls down
> 4) =3D ovirt shutdown one server
>
> Then operator unpauses virtual = =3D machines and ovirt starts again the 2nd
> server.
>
> =3D Thanks,
> Mario
>
> =3D _______________________________________________
> Users mailing =3D list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
&g= =3D t;