[ovirt-users] How to stick VM to hosts?

[Doron Fediuck]

Just for the record, affinity deals with the relation
between VMs, and pinning is about the relation between
a VM and a host.

We're considering extending affinity to handle hosts
as well, but it's not a trivial change.

Doron

----- Original Message -----
> From: "Arman Khalatyan" <arm2arm at gmail.com>
> To: "Itamar Heim" <iheim at redhat.com>
> Cc: "users" <users at ovirt.org>
> Sent: Sunday, November 30, 2014 3:30:19 PM
> Subject: Re: [ovirt-users] How to stick VM to hosts?
> 
> Thanks for ideas.
> I will try http://www.ovirt.org/External_Scheduler_Samples looks nice.
> Itamar the VM-Affinity selects the VMs, but not the hosts.
> Would be nice in the next release to add some host pinning options as well.
> Cheers,
> Arman.
> 
> 
> ***********************************************************
> Dr. Arman Khalatyan eScience -SuperComputing Leibniz-Institut für Astrophysik
> Potsdam (AIP) An der Sternwarte 16, 14482 Potsdam, Germany
> ***********************************************************
> 
> On Sun, Nov 30, 2014 at 2:20 PM, Itamar Heim < iheim at redhat.com > wrote:
> 
> 
> On 11/30/2014 12:58 PM, Artyom Lukianov wrote:
> 
> 
> I am sure you know about vm pinning, but it promise that you can run vm only
> on one specific vm, in your case you want to run vm on some range of hosts,
> exclude some specific hosts. At the moment ovirt don't have such thing of
> policy, but you can write your own filter for scheduler-proxy, that will
> filter all hosts except ones that you need:
> http://www.ovirt.org/Features/ oVirt_External_Scheduling_ Proxy
> http://www.ovirt.org/External_ Scheduler_Samples
> 
> You need to install package ovirt-scheduler-proxy and also enable it via
> engine-config -s ExternalSchedulerEnabled=True.
> Also additional info you can find under cd /usr/share/doc/ovirt-
> scheduler-proxy*
> 
> why - since 3.4 we have affinity support out of the box?
> http://www.ovirt.org/Features/ VM-Affinity
> 
> 
> 
> 
> 
> I hope it will help you.
> Thanks
> 
> ----- Original Message -----
> From: "Arman Khalatyan" < arm2arm at gmail.com >
> To: "users" < users at ovirt.org >
> Sent: Friday, November 28, 2014 11:51:40 AM
> Subject: [ovirt-users] How to stick VM to hosts?
> 
> Hello,
> I have 2 VMs with the negative Affinity.
> I am looking some way to force the VMs running on different selected hosts.
> Assuming I have hosts c1-c8: Can I tell VM to run on c1-c8 but not c2 and c4?
> Thanks,
> Arman.
> 
> ****************************** *****************************
> Dr. Arman Khalatyan eScience -SuperComputing Leibniz-Institut für Astrophysik
> Potsdam (AIP) An der Sternwarte 16, 14482 Potsdam, Germany
> ****************************** *****************************
> 
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