[pve-devel] Speed up PVE Backup

[Alexandre DERUMIER]

>>Yes it does. We already tested it - it just does not work with VMA. We
>>need to dump qcow2 files cause vma is crashing when the clustersize it
>>get's is not 64kb.

How do you backup to qcow2 ?

@Dietmar : is it possible to improve vma format to handle differents clustersize(s) ?
----- Mail original -----
De: "Stefan Priebe" <s.priebe at profihost.ag>
À: "pve-devel" <pve-devel at pve.proxmox.com>, "dietmar" <dietmar at proxmox.com>
Envoyé: Mardi 1 Mars 2016 11:55:21
Objet: Re: [pve-devel] Speed up PVE Backup

) 

Am 01.03.2016 um 11:03 schrieb Alexandre DERUMIER: 
> Hi, qemu devs have send patches to configure backup cluster size: 
> 
> http://lists.gnu.org/archive/html/qemu-devel/2016-02/msg06062.html 
> http://lists.gnu.org/archive/html/qemu-devel/2016-02/msg06064.html 
> 
> 
> Could be great to see if it's improve ceph backup performance. 

Yes it does. We already tested it - it just does not work with VMA. We 
need to dump qcow2 files cause vma is crashing when the clustersize it 
get's is not 64kb. 

> 
> 
> ----- Mail original ----- 
> De: "dietmar" <dietmar at proxmox.com> 
> À: "aderumier" <aderumier at odiso.com>, "pve-devel" <pve-devel at pve.proxmox.com> 
> Envoyé: Vendredi 19 Février 2016 09:17:14 
> Objet: Re: [pve-devel] Speed up PVE Backup 
> 
>> I wonder how perform the native qemu backup blockjob vs proxmox vma backup 
>> format ? 
> 
> We use the qemu backup blockjob, just slightly modified... 
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