[PVE-User] Uncompressed backups are compressed?
chrismurray84 at gmail.com
Tue Nov 18 10:19:23 CET 2014
That sounds interesting; exactly what I need, I think, rather than have to store the backups elsewhere first and then unpack onto the destination storage where they're subsequently de-duped. Having backups orchestrated by Proxmox would be ideal instead of involving this extra step.
Will this be implemented into Proxmox? I'm happy to be a guinea pig. I don't know how well that English saying translates into other languages :-) ... I'm happy to test.
From: Dietmar Maurer [mailto:dietmar at proxmox.com]
Sent: 13 November 2014 18:24
To: Chris Murray; Yannis Milios
Cc: pve-user at pve.proxmox.com
Subject: RE: [PVE-User] Uncompressed backups are compressed?
> I see from the forum link  that the file is not rdiff friendly. I
> still think that storing an amount of data inside a smaller file is
> ‘compression’, regardless of how much is actually used inside the RAW
> file (is RLE compression still a thing?), but that does answer my
> question. It’s a shame, because I’ll now have to extract backups as
> they’re created somehow in order to get them into a state where they
> can be de-duplicated again. I think many people would appreciate a
> file format inside which the data is aligned, even if it is out-of-order to a degree. I won’t be the first person who has virtual machines which don’t change much.
I also implemented a backup mode inside qemu which stores files in raw format inside one directory.
But that is currently not integrated with vzdump.
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