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Re: [Xen-users] iscsi vs nfs for xen VMs

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] iscsi vs nfs for xen VMs
From: Pierre <pierre@xxxxxxxxxx>
Date: Thu, 27 Jan 2011 14:21:28 +0100
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Rudi Ahlers <Rudi@xxxxxxxxxxx> a écrit :

On Thu, Jan 27, 2011 at 3:00 PM, Christian Zoffoli <czoffoli@xxxxxxxxxxx> wrote:
Il 27/01/2011 13:48, Pierre ha scritto:
Why not just give the 2 LV's to the dom0, and raid it on the dom0
instead? The the domU's still use the "local storage" as before and
they won't know about it.

With that setup, are you able to do live migration ?

no he cannot

he can do live migration if he make the raid1 inside domus

That's what I thought...



Why not?

Live migration only relies on shared storage on the dom0, not on the domU

Then, how do you achieve shared raid1 ? How may the first dom0 be aware of the mirroring the other dom0(s) is(are) doing ?
I must be missing something here.


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