[Pacemaker] Dual-Primary DRBD with OCFS2 on SLES 11 SP1

[Nick Khamis]

Vladislav,

Thank you so much for your response! Just when I though I hit a wall.
Perfect timing.
Actually, I was thinking about setting up a Pacemaker VM Cluster for production.
The only problem I foresee is stonith. I am not sure if virt is fit
for production?

Nick.

On Mon, Oct 3, 2011 at 3:39 PM, Vladislav Bogdanov <bubble at hoster-ok.com> wrote:
> Hi,
>
> 29.09.2011 17:47, Nick Khamis wrote:
>> Hello Dejan,
>>
>> Sorry to hijack, I am also working on the same type of setup as a prototype.
>> What is the best way to get stonith included for VM setups? Maybe an
>> SSH stonith?
>> Again, this is just for the prototype.
>
> You may look at fence-virt.
> I use fence-virtd-libvirt-qpid (with two my patches which fix grave
> bugs, names of patches say for themselves) and fence_xvm.
> It's still not ideal (f.e. it does not work if several hosts know one
> VM), but it may work well under some circumstances:
> * You set up qpid server
> * You run fence_virtd on every host and publish libvirtd data on that
> qpid server
> * You ensure that only one host has any VM listed in qpid (read: in
> virsh list). F.e you unconditionally use virsh undefine after vm is stopped.
> * You fix its bugs (at least with my patches)
>
> Patches are attached.
>
> Best,
> Vladislav
>
> P.S. Patches could be also interesting for fence-virt author if he reads
> this list. It would be great if somebody point him to them otherwise.
>
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