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

On Mar 23, 2007, at 12:51 AM, Tim Post wrote:

On Thu, 2007-03-22 at 23:38 +0100, Franck ELIE wrote:
Please tell me if I am wrong :

Xen needs LVM to perform domU snapshots and snapshots must be performed
by dom0.
By the way, a LVM volume group should not be used by more that one
kernel at the same time. So if we use a SAN storage, one volume group
should be activated on only one server and deactivated on the others.
But if we do that, it should not be possible to perform live migration
of domU.
My conclusion would be that we have to choose between snapshot or
live-migration, but with xen 3.0.3 we can not use both.

Just use CLVM. While its suitability is still kind of in debate for
heavy production use, its more than ample for such simple tasks if I
understand your need correctly.

CLVM does not yet support snapshots and mirrors.

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