Re: [Xen-users] Xen and SAN : snapshot XOR live-migration ?

[Olivier Le Cam <Olivier.LeCam@xxxxxxxxxxxxxxxxxxxxx>]

Siim Vahtre wrote:

> AFAIK you can use the LVM volume group in all nodes, but you may not 
> change anything. If you need changes (e.g volume size), you must 
> deactivate the vg in all but one node where you actually do the change, 
> which in your case probably means shutting down all domU's.
> Check CLVM, it is cluster-aware.
Do you mean that with cLVM you can resize a volume on the fly without 
having to shut down every attached domUs (assuming the file system does 
support that -- which is the case for some like XFS if I understood)?
I'm actually interested on that topic because we are about to get a SAN 
for our servers.
Thanks in anticipation,
--
Olivier Le Cam
Département des Technologies de l'Information et de la Communication
CRDP de l'académie de Versailles

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