Thanks for the explain, I'll do tests this week.
Regards,
Alexandre
----- Mail original -----
De: "MORITA Kazutaka" <morita.kazut...@lab.ntt.co.jp>
À: "Alexandre DERUMIER" <aderum...@odiso.com>
Cc: "MORITA Kazutaka" <morita.kazut...@lab.ntt.co.jp>, sheepdog@lists.wpkg.org
Envoyé: Vendredi 24 Août 2012 09:08:51
Objet: Re: [sheepdog] snapshot rollback ?
At Fri, 24 Aug 2012 08:35:25 +0200 (CEST),
Alexandre DERUMIER wrote:
>
> >>If you run the following command, you can rollback the snapshot again.
> >>
> >>$ qemu sheepdog:image1:snap1
> >>
> >>I think the 'collie vdi tree' command would help you.
>
> Thanks, But I don't understand how It can work.
>
> If I
> "I create a base vdi : image1
$ collie vdi tree
image1---(you are here)
> create a snapshot: snap1
$ collie vdi tree
image1---[2012-08-24 15:44]---(you are here)
> create a snapshot: snap2
$ collie vdi tree
image1---[2012-08-24 15:44]---[2012-08-24 15:44]---(you are here)
> now I boot on snap1
> qemu sheepdog:image1:snap1
> I write datas
$ collie vdi tree
image1---[2012-08-24 15:44]-+-[2012-08-24 15:44]---[2012-08-24 15:45]
`-(you are here)
> and now I restart the vm (so with qemu sheepdog:image1:snap1).
Even if you restart the vm, sheepdog doesn't reopen the image and the
rollback doesn't happen. If you completely shutdown the vm, please
use "qemu sheepdog:image1" to restart the vm from the previous
shutdown point. The command will start from '(you are here)'.
> "
> It will rollback ? But in this case It will destroy my new datas ?
> In this case I don't want rollback, I just want restart the vm.
Even if you wrongly rollback to a snapshot, you don't lose any data
because the previous image is kept as a snapshot.
$ ./collie/collie vdi tree
image1---[2012-08-24 15:44]-+-[2012-08-24 15:44]---[2012-08-24 15:45]
|-[2012-08-24 15:46]
`-(you are here)
Thanks,
Kazutaka
--
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Alexandre D e rumier
Ingénieur Systèmes et Réseaux
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