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

[Tim Post <tim.post@xxxxxxxxxxxxxxx>]

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.
> 
> Don't you think so ?
> 
> Regards
> 
>   Franck
> 
> 

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.

Best,
--Tim



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