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xen-users
Re: [Xen-users] High Number of VMs
Am 10.09.2011 um 13:39 schrieb Andreas Olsowski:
>>>> That is no longer true. CLVM supports clustered snapshots. I use it
>>> already.
> When i do a live migration of a guest that has its data on a cLVM volume,
> does that work? I mean, wouldnt some kind of "deactivate volume at source"
> and "activate volume at target" have to be incorporated into the xl(or
> xm/xend) toolstacks?
>
I have not tested live migration, but I am sure that it would not work. I
believe that xl/xm can not deactivate the LV on one host and activate it on the
other. I afraid that xm does not even know that the VM uses LVs as disk, xm can
only distinguish between file and block device. But that is only a guess from
me.
> Wouldnt the guest otherwise be trasferred to a host that cannot give it full
> access to its disk?
>
> --
> Andreas Olsowski
> Leuphana Universität Lüneburg
> Rechen- und Medienzentrum
> Scharnhorststraße 1, C7.015
> 21335 Lüneburg
>
> Tel: ++49 4131 677 1309
>
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