[PVE-User] backup archive size

Eneko Lacunza elacunza at binovo.es
Thu Sep 18 10:09:45 CEST 2014


Hi,

Backup compression is done on a block level (there is no filesystem 
knowledge), so you can have "dirty" blocks in the virtual device that 
don't compress well, although you guest filesystem knows they're free.

On 18/09/14 09:52, Tonči Stipičević wrote:
> Hello to all
>
> I have one VM win2012r2 with two virtio qcow2 disks  .
> 1st one is 100G big with 20G data on it.
>
> I'm backing only this partition up , 2nd one has "no-backup" flag,
> and backup archive turnes out to be 72G big  .
>
> How is that possible since I have "only"  20G  of data ?
>
> Thank you very much in advance and
>
> BR
>
> Tonci Stipicevic
>
> //
>
>
> _______________________________________________
> pve-user mailing list
> pve-user at pve.proxmox.com
> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user


-- 
Zuzendari Teknikoa / Director Técnico
Binovo IT Human Project, S.L.
Telf. 943575997
       943493611
Astigarraga bidea 2, planta 6 dcha., ofi. 3-2; 20180 Oiartzun (Gipuzkoa)
www.binovo.es

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://pve.proxmox.com/pipermail/pve-user/attachments/20140918/8dbcb217/attachment-0015.html>


More information about the pve-user mailing list