[ovirt-users] Ovirt resilience policy / HA
Guillaume Penin
guillaume at onlineacid.com
Wed Mar 18 11:59:38 UTC 2015
Hi Darell,
Sorry for my late reply.
I've been able to test the 2 different scenarios :
- Host not responding => Host fenced => HA VMs restarted on another
Host.
- Host not operational => Host not fenced, resilience policy configured
to "Migrate Virtual Machines" => All VMs migrated to another Host.
Thank you very much for your answer.
Kind regards,
Le 2015-03-17 14:59, Darrell Budic a écrit :
> Resilience policy refers to migration behavior only. if VDSM on a host
> node detects a storage or network problem, for instance, it will
> migrate All, HA, or no VMs to a new node.
>
> Sounds like you’re thinking in terms of “I want Ovirt to restart these
> VMs if the host dies”, for that, set HA on the VMs you want it to
> restart if the VM dies for whatever reason.
>
>
>> On Mar 16, 2015, at 3:34 PM, Guillaume Penin
>> <guillaume at onlineacid.com> wrote:
>>
>> Hi all,
>>
>> I'm building a test ovirt (3.5.1) infrastructure, based on 3 ovirt
>> nodes and 1 ovirt engine.
>>
>> Everything runs (almost) fine, but i don't exactly understand the
>> interaction between resilience policy (Cluster) and HA (VM).
>>
>> => What I understand, in case of host failure :
>>
>> - Setting resilience policy to :
>>
>> - Migrate Virtual Machines => All VMs (HA and non HA) will be
>> started on another host.
>> - Migrate only Highly Available Virtual Machines => HA VMs only
>> will be started on another host.
>> - Do Not Migrate Virtual Machines => HA and non HA VMs won't be
>> started on another host.
>>
>> => In practice :
>>
>> - No matter what parameter i use in resilience policy, HA VMs only
>> will be started on another host in case of a host failure.
>>
>> Is this the expected behaviour ? Am I misunderstanding the way it
>> works ?
>>
>> Kind regards,
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