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Re: [Qemu-block] [ovirt-users] Scheduling daily Snapshot

From: Nir Soffer
Subject: Re: [Qemu-block] [ovirt-users] Scheduling daily Snapshot
Date: Fri, 08 Dec 2017 21:03:03 +0000

On Fri, Dec 8, 2017 at 5:25 PM Max Reitz <address@hidden> wrote:
On 2017-12-07 23:19, Nir Soffer wrote:
> On Wed, Dec 6, 2017 at 6:02 PM Jason Lelievre <address@hidden
> <mailto:address@hidden>> wrote:
>     Hello,
>     What is the best way to set up a daily live snapshot for all VM, and
>     have the possibility to recover, for example, a specific VM to a
>     specific day?
> Each snapshot you create make reads and writes slower, as qemu has to
> lookup data through the entire chain.
> When we take a snapshot, we create a new file (or block device) and make
> the new file the active layer of the chain.

I'm not sure how much this is going to slow you down exactly, but I can
tell you that there are also incremental backups to look into.

(e.g. https://wiki.qemu.org/Features/IncrementalBackup)

checking, thanks!


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