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Re: [Xen-users] Consistent VM image backups

To: Javier Guerra Giraldez <javier@xxxxxxxxxxx>
Subject: Re: [Xen-users] Consistent VM image backups
From: Mike Sun <msun@xxxxxxxxxx>
Date: Thu, 27 Jan 2011 17:25:20 -0500
Cc: XEN Mailing List <xen-users@xxxxxxxxxxxxxxxxxxx>
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I'm not worried about uncommitted data from the guest OS... I'm
capturing all of the domU memory state as well, so I guess I should be
more clear that I'm not looking for truly "consistent" disk image... I
just want to make sure that the virtual disk state is always synced to
the actual backing file.

On Thu, Jan 27, 2011 at 5:23 PM, Javier Guerra Giraldez
<javier@xxxxxxxxxxx> wrote:
> On Thu, Jan 27, 2011 at 5:00 PM, Mike Sun <msun@xxxxxxxxxx> wrote:
>>  Does the use of the blktap
>> driver eliminate this problem?
> no, since it's not a virtualization isse: the guest's OS might have a
> lot of uncommitted data, no setup of Xen can divine what should be on
> disk before the guest chooses to flush it.
> --
> Javier

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