[ovirt-users] Lower CPU for specific VMs

[Ian Fraser]

From: Punit Dambiwal [mailto:hypunit at gmail.com]
Sent: 29 June 2015 08:20
To: Ian Fraser
Cc: users at ovirt.org
Subject: Re: [ovirt-users] Lower CPU for specific VMs

Hi Ian,

Is it possible to use the custom CPU model just like "KVM virtual cpu" instead of "(Conroe|Penryn|Nehalem|Westmere|SandyBridge)" ??


Just like Vultr ...

[Inline image 1]

Hi,
The values are passed to libvirt via the ovirt engine. They need match one of the model names stored in libvirts cpu_map.xml file (located in /usr/share/libvirt/ on my centos 7.1 hosts).


On Fri, Jun 26, 2015 at 10:37 PM, Ian Fraser <Ian.Fraser at asm.org.uk<mailto:Ian.Fraser at asm.org.uk>> wrote:


-----Original Message-----
From: Omer Frenkel [mailto:ofrenkel at redhat.com<mailto:ofrenkel at redhat.com>]
Sent: 24 June 2015 09:29
To: Joop; Ian Fraser
Cc: users at ovirt.org<mailto:users at ovirt.org>
Subject: Re: [ovirt-users] Lower CPU for specific VMs

----- Original Message -----
> From: "Joop" <jvdwege at xs4all.nl<mailto:jvdwege at xs4all.nl>>
> To: users at ovirt.org<mailto:users at ovirt.org>
> Sent: Wednesday, June 24, 2015 10:40:04 AM
> Subject: Re: [ovirt-users] Lower CPU for specific VMs
>
> On 24-6-2015 9:35, Ian Fraser wrote:
> > Hi,
> >
> > How do I set the CPU for a particular VM to be a lower family than
> > the cluster is set to?
> >

using ovirt 3.6 you can do it from the UI, just edit vm and select the cpu model you like (in edit vm dialog - under 'System' subtab, 'Advanced Parameters'

http://www.ovirt.org/Features/Cluster_parameters_override

> You'll need to write a vdsm-hook script which manipulates the xml that
> is used to set a lower cpu.

Thanks, I have created a hook script which is available here: http://admin-reminder.blogspot.co.uk/2015/06/set-cpu-family-for-specific-vm-on-ovirt.html if anyone would like to make use of it.


>
> Regards,
>
> Joop
>
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