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From: Alexander Puchmayr <alexander.puchmayr@linznet.at>
To: linux-xfs@vger.kernel.org
Subject: Re: how to restore a snapshot in XFS ?
Date: Sun, 12 May 2024 19:51:25 +0200	[thread overview]
Message-ID: <5778721.DvuYhMxLoT@zeus> (raw)
In-Reply-To: <PR3PR04MB7340EFE53D742D347C9ACE58D6E12@PR3PR04MB7340.eurprd04.prod.outlook.com>

On Sonntag, 12. Mai 2024, 14:30:12 CEST Bernd Lentes wrote:
> Hi,
> 
> I just created a XFS Partition to store raw images of qemu domains on it.
> I create snapshots of these files with cp --reflink.
> Is that the correct way ?
> 
> Now I want to go back to such a snapshot. How do I achieve this ?
> Just copy the snapshot over the original ?
> 
I'm following this strategy for several years now, in in case I need to 
restore from such a "backup", I use cp --reflink when copying the snapshot over 
the original. 
Without the --reflink you'd get a completely new copy of your snapshot, and 
when producing new snapshots they will not have anything in common with your 
previous snapshots --> more disc space. 

Alex



> Thanks.
> 
> Bernd
> 
> 
> --
> 
> Bernd Lentes
> SystemAdministrator
> Institute of Metabolism and Cell Death
> Helmholtz Zentrum München
> Building 25 office 122
> Bernd.lentes@helmholtz-munich.de
> +49 89 3187 1241
> 
> Helmholtz Zentrum München – Deutsches Forschungszentrum für Gesundheit und
> Umwelt (GmbH)
 Ingolstädter Landstraße 1, D-85764 Neuherberg,
> https://www.helmholtz-munich.de Geschäftsführung: Prof. Dr. med. Dr. h.c.
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> MinDir’in Prof. Dr. Veronika von Messling Registergericht: Amtsgericht
> München HRB 6466 | USt-IdNr. DE 129521671





      reply	other threads:[~2024-05-12 18:01 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-12 12:30 how to restore a snapshot in XFS ? Bernd Lentes
2024-05-12 17:51 ` Alexander Puchmayr [this message]

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