[PVE-User] Backup size

VIDAL, Thomas (Bioversity-France) t.vidal at cgiar.org
Fri Apr 4 17:50:34 CEST 2014

Dear Gilberto and Diaolin,

Thanks for your help.
But I have only linux debian server, and this happens also with the 
fresh and last one I just setting up with nothing else except the basic 
filesystem (500Mo) and for this VM I set a 80G of disk, and then the 
backup size is 20G !
The thing is if the disk of the VM is 32G, the backup is 17G, if the 
disk of the VM is 100G the backup file size is 30G, and for these VM 
there are nothing except a basic debian system (with no X)
Since I am using Proxmox I didn't change the storage (DELL MD3200i) and 
the physical server ! It appeared suddendly, maybe with one update, I 
don't know.

Many thanks for your help.

Have a nice week-end


On 04/04/2014 16:53, Diaolin wrote:
> Il 2014-04-04 15:19 VIDAL, Thomas (Bioversity-France) ha scritto:
>> Dear all,
>> I'm using Proxmox version 3.2-1, and since several weeks or months
>> (but not before) backup of VMs take a long time and this is because
>> the size of each VMs backup are biggest as before.
> It it is a windows filesystem just use sdelete -z D: or C:
> sdlete comes from sysinternals
> download.sysinternals.com/files/SDelete.zip
> that cleans unused space
> and with linux
> install secure-delete
> or better
> create a zero file and erase it
> after that you have all unused sectors clean
> cat /dev/zero > zero.file
> rm zero.file
> Take attention that before "rm" the filesystem will be 100%
> Ciao, Diaolin
> ---
> S’à destacà l’ultima föia dal bósch nét
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> [Diaolin]
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Thomas VIDAL (t.vidal at cgiar.org)
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