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Re: [Xen-devel] How to get the persistent identifier of a domain?

To: Lily Huang <ushuanglily@xxxxxxxxx>
Subject: Re: [Xen-devel] How to get the persistent identifier of a domain?
From: Ewan Mellor <ewan@xxxxxxxxxxxxx>
Date: Thu, 28 Dec 2006 10:58:06 +0000
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On Wed, Dec 27, 2006 at 11:09:43PM -0500, Lily Huang wrote:

> Hi,
> 
> As we know, a domainU's domid may change after system reboots. Does Xen
> provide a persistent identifier for each domU? I tried UUID, but UUID also
> changes across reboots. Any idea on this? If Xen does provide such a
> mechanism to persistently identify a domain U? What is it?

Which UUID do you mean?  The one that xm list --long shows you as the
UUID for the domain certainly shouldn't change across reboots (it
doesn't for me).

Ewan.

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