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

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Xen and SAN : snapshot XOR live-migration ?
From: Olivier Le Cam <Olivier.LeCam@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 26 Mar 2007 10:27:52 +0200
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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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