Xen users - Aug 2008 - Avoid resources(disks) conflict on a multiserver envorioment

Hello,

I have 3 servers connected to a SAN (EVA 4100) providing my xen disks.
If I try to run two machines with conflict access in the same server,
xen shows me an erros and quits. However, I can still bring up the
same virtual machine on two servers, which migth lead to some disk
problems :-)

Is there any way to automagicly avoid xen conflics over some dom0
servers? (not letting me turn on one vm if it is up in another server)

I''m trying to implement some checks on the vm config file (as it is
python) and using file-based locks on a ocfs2 partition. It''s not
quite clear
but it is the best I found until now.

Any better ideas, please?

Thanks,

-- 
 Luiz Angelo Daros de Luca
 luizluca@gmail.com
 ICQ: 19290419

 I Know, "Where you wanted to go today",
 but I decided to stop here instead!
 MS Windows

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On Tue, Aug 12, 2008 at 5:17 PM, Luiz Angelo Daros de Luca
<luizluca@gmail.com> wrote:
> Is there any way to automagicly avoid xen conflics over some dom0
> servers? (not letting me turn on one vm if it is up in another server)
i don''t know the details; but there are some scripts for HA that
define xen VMs as resources.

http://www.linux-ha.org/XenResource

it can manage restarting, STONITH, migrations... or simply forbid you
from running more than one of a given resource


-- 
Javier

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