[Pacemaker] Only Xen primitives not in groups migrate on failover

Andrew Beekhof andrew at beekhof.net
Wed Apr 28 06:25:07 UTC 2010


On Tue, Apr 27, 2010 at 9:56 PM, Sander van Vugt <mail at sandervanvugt.nl> wrote:
> Andrew,
>
> On Tue, 2010-04-27 at 21:09 +0200, Andrew Beekhof wrote:
>> On Tue, Apr 27, 2010 at 8:54 PM, Roberto Giordani <r.giordani at libero.it> wrote:
>> > Hello,
>> > this mean that if i create a group with a file system + xen the live
>> > migration doen't work?
>>
>> Correct.
>> You'd need to use a cluster filesystem (or some other arrangement that
>> could be cloned sanely) and colocate the xen instance with that.
>
> I'm a bit confused. Are you saying that live migration doesn't work if
> you are putting the Xen primitive in a group, or are you saying it does
> work - also in a group - but you just need to make sure that you're
> using a cluster file system such as OCFS2 (or another solution such as
> cLVM perhaps) to make it work?

Neither of which can go in a group (unless you then clone the entire
group as well).
The guests can only depend (colocation and ordering) on clones if you
want them to be able to mirgrate.

>
> Thanks,
> Sander
>
>
>
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