[Users] HA in oVirt 3.3

[Itamar Heim]

On 10/02/2013 09:04 PM, emitor at gmail.com wrote:
> But, if i want HA, if the host were the vm it's running lost
> connectivity with the manager, the vm should start in other host of the
> cluster right?
>

HA is currently controlled by the engine, which needs to know the VM 
isn't running on the host to launch it on another host.
we're looking at relying on sanlock for engine to be able to launch the 
VM on another host without fencing the first host.

>
> 2013/10/2 Itamar Heim <iheim at redhat.com <mailto:iheim at redhat.com>>
>
>     On 10/02/2013 08:58 PM, emitor at gmail.com <mailto:emitor at gmail.com>
>     wrote:
>
>         Connectivity between the host and the engine...
>
>
>     so engine can't ask host to live migrate to another host...
>
>
>
>
>         2013/10/2 Itamar Heim <iheim at redhat.com
>         <mailto:iheim at redhat.com> <mailto:iheim at redhat.com
>         <mailto:iheim at redhat.com>>>
>
>              On 10/02/2013 08:38 PM, emitor at gmail.com
>         <mailto:emitor at gmail.com> <mailto:emitor at gmail.com
>         <mailto:emitor at gmail.com>>
>
>              wrote:
>
>                  Thanks Itamar!
>
>                  So there is no way to get HA without power management? It
>                  doesn't use
>                  the connectivity issue as a reason for migrate the vm?
>
>
>              connectivity between engine and host, or host and something
>         else?
>
>
>                  Thanks
>
>
>                  2013/10/2 Itamar Heim <iheim at redhat.com
>         <mailto:iheim at redhat.com>
>                  <mailto:iheim at redhat.com <mailto:iheim at redhat.com>>
>         <mailto:iheim at redhat.com <mailto:iheim at redhat.com>
>
>                  <mailto:iheim at redhat.com <mailto:iheim at redhat.com>>>>
>
>                       On 10/02/2013 08:08 PM, emitor at gmail.com
>         <mailto:emitor at gmail.com>
>                  <mailto:emitor at gmail.com <mailto:emitor at gmail.com>>
>         <mailto:emitor at gmail.com <mailto:emitor at gmail.com>
>
>                  <mailto:emitor at gmail.com <mailto:emitor at gmail.com>>>
>
>                       wrote:
>
>                           Hi!
>
>                           I'm testing the HA in oVirt 3.3, it should
>         work if i'm
>                  running a
>                           vm on a
>                           host that suddenly get out of connection? because
>                  that's not
>                           working for me.
>
>                           The HA works if i put in maintenance the host
>         where the
>                  VM is
>                           running,
>                           but if the host get down the vm get in unknown
>         state.
>                  That's how it
>                           should work?
>
>
>                       that's live migration, not HA.
>                       HA is for failure, in which case engine should
>         start the VM on
>                       another host.
>
>
>
>                           I would like that the vm automatically change
>         of host
>                  if the one
>                           that's
>                           is running get out of conectivity, this is
>         possible?
>
>
>                       yes. but you need to configure power management so
>         engine
>                  can fence
>                       the non responsive host.
>
>
>                           Regards!
>
>                           --
>                           *Emiliano Tortorella*
>         +598 98941176 <tel:%2B598%2098941176> <tel:%2B598%2098941176>
>         <tel:%2B598%2098941176>
>
>         emitor at gmail.com <mailto:emitor at gmail.com>
>         <mailto:emitor at gmail.com <mailto:emitor at gmail.com>>
>                  <mailto:emitor at gmail.com <mailto:emitor at gmail.com>
>         <mailto:emitor at gmail.com <mailto:emitor at gmail.com>>>
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>         <mailto:emitor at gmail.com> <mailto:emitor at gmail.com
>         <mailto:emitor at gmail.com>>
>                  <mailto:emitor at gmail.com <mailto:emitor at gmail.com>
>         <mailto:emitor at gmail.com <mailto:emitor at gmail.com>>>>
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>                  --
>                  *Emiliano Tortorella*
>         +598 98941176 <tel:%2B598%2098941176> <tel:%2B598%2098941176>
>         emitor at gmail.com <mailto:emitor at gmail.com>
>         <mailto:emitor at gmail.com <mailto:emitor at gmail.com>>
>                  <mailto:emitor at gmail.com <mailto:emitor at gmail.com>
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>         --
>         *Emiliano Tortorella*
>         +598 98941176 <tel:%2B598%2098941176>
>         emitor at gmail.com <mailto:emitor at gmail.com>
>         <mailto:emitor at gmail.com <mailto:emitor at gmail.com>>
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> --
> *Emiliano Tortorella*
> +598 98941176
> emitor at gmail.com <mailto:emitor at gmail.com>