[Pacemaker] Configure stonith device for kvm guests

[Lon Hohberger]

On Fri, 2010-03-26 at 19:20 +0100, carlopmart wrote:
> Hi all,
> 
>   My kvm host is a Rhel5.4 fully patched. I have installed two centos5 i386 kvm 
> guests with pacemaker/corosync (last version: 1.0.8).
> 
>   Which stonith device can I use as fence device for these guests?? I see in 
> documentation that I need to use fence_virtd, but this fence device isn't supported 
> under Rhel.

> Can I use fence_xvmd on kvm hostt like in RHCS??

Are you using one host or >1 ?

If you are using one host, you can run:

  fence_xvmd -LXI virbr0

in the host OS.  The fence_xvm agent from the fence-virt package (which
is a symlink to fence_virt) should talk to fence_xvmd.

Fence_xvm from RHEL/CentOS cman package will also work with fence_xvmd
(obviously), but will -not- work cleanly with Pacemaker due to lack of
metadata output and bad return codes.

If you are using multiple hosts, it gets a bit more complicated... 

-- Lon