[pve-devel] Speed up PVE Backup

[Alexandre DERUMIER]

>>We're currently implementing our own backup system which uses the 
>>drive-backup qmp routine to dump qcow2. We don't need the config files. 
>>And this works with ceph and 4MB cluster size. 

How about speed performance (64K,4MB) and stability vs proxmox vma format ? 

I'm curious, because I still fear to use proxmox feature when I see all the stability bugs reports on the forum. 
And I would like to test incremental backup too. (only full backup is not possible for me) 






	

Alexandre Derumier 
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De: "Stefan Priebe" <s.priebe at profihost.ag> 
À: "pve-devel" <pve-devel at pve.proxmox.com> 
Envoyé: Mercredi 2 Mars 2016 08:28:52 
Objet: Re: [pve-devel] Speed up PVE Backup 

Am 01.03.2016 um 14:05 schrieb 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 ? 

We're currently implementing our own backup system which uses the 
drive-backup qmp routine to dump qcow2. We don't need the config files. 
And this works with ceph and 4MB cluster size. 

Greets, 
Stefan 

> ----- 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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