[PVE-User] ??utf-8?q? VM Backup best practicesrecommendation...

Fabrizio Cuseo f.cuseo at panservice.it
Wed Feb 17 14:50:38 CET 2016


I have your same problem; backup strategy and software is a priority for a lot of vendors; vmware have both backup (with dedup and flexible retention policy) and replication; veeam is a great suite and is a must-have for a more complex and big cluster. 
I know that proxmox is based on community software, and backup (i mean incremental backup) is not simple, but i can't believe that all the users are satisfied with vzdump. 
I personaly miss: 
- a retention policy different from "the last" backups; i know that i can write script to move and rotate some backups, but simplicity is the winner; if i could select in the backup option a "keep last X daily/weekly/monthly/yearly backups", all is simpler and error free 
- an incremental backup; this is really the big miss. I have too long backup windows, so i can't backup the vm every day. And I can't use backuppc/bacula or some other guest-based backup software, when i use proxmox to host vm for customers, 
- backup verification (it can be useful) 

Regarding incremental backups, based on dirty blocks, i don't know if this feature is usable: http://wiki.qemu.org/Features/IncrementalBackup 
But, even if only with some kind of storage backend, we could make incremental backups. Using ceph (that is fully supported by proxmox), is possibile to make incremental (or differential) backups, based on snapshots. I have manually tested with "rbd --export-diff" on ceph snapshots, and works like a charm. So i think that, even if only for ceph storage, it can be developed (zfs solution can be similar) 

No one need to have a better backup support ? 

Regards, Fabrizio 

----- Il 17-feb-16, alle 14:19, Gilberto Nunes <gilberto.nunes32 at gmail.com> ha scritto: 

> you know... more than one backup never is too much

> 2016-02-17 10:48 GMT-02:00 Alwin Antreich < sysadmin-pve at cognitec.com > :

>> As an idea, if you have a separate disk for your data and you already create
>> backups inside your VM, why not skip the
>> backup of this VM disk? In case of an emergency you may need to restore your
>> backups inside the VM anyway. So it might
>> be faster in the event of a disaster to recreate the disk and restore your
>> backups inside the VM. As you said an email
>> earlier, the backup of the disk takes a long time, so might also the restore.

>> Regards,
>> Alwin

>> On 02/17/2016 01:31 PM, Gilberto Nunes wrote:
>> > Yes Alwin...

>> > I consider to make backup from account as well, in separate method...
>>> I am concern about the VM backup when send this e-mail, 'cause inside the VM I
>> > already have accounts backup...

>> > Thanks a lot for your advice....

>>> 2016-02-17 10:25 GMT-02:00 Alwin Antreich < sysadmin-pve at cognitec.com <mailto:
>> > sysadmin-pve at cognitec.com >>:

>> > Hi all,

>> > @Gilberto
>>> please keep in mind, to get consistent backups you need to backup your zimbra
>> > database by different means then by only
>> > taking a snapshot.

>> > Regards,
>> > Alwin

>> > On 02/17/2016 01:05 PM, Pongrácz István wrote:

>> > > Consider to use zfs for proxmox and use its snapshot/send/receive methods.

>>> > Taking a snapshot usually less than a second and you can send the incremental
>> > > changes over the network.

>>> > You should check your existing systems and decide, is it worth to change your
>> > > system or not.

>> > > Bye,

>> > > István



>> > > ----------------eredeti üzenet-----------------
>>> > Feladó: "Gilberto Nunes" < gilberto.nunes32 at gmail.com <mailto:
>> > > gilberto.nunes32 at gmail.com >>
>>> > Címzett: "PVE User List" < pve-user at pve.proxmox.com <mailto:
>> > > pve-user at pve.proxmox.com >>
>> > > Dátum: Wed, 17 Feb 2016 09:49:08 -0200
>> > > ----------------------------------------------------------


>> > >> Thank you guys... I will study all suggestions and choose the best one...
>> > >> Thanks a lot





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>> > --

>> > Gilberto Ferreira
>> > +55 (47) 9676-7530
>> > Skype: gilberto.nunes36



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> --

> Gilberto Ferreira
> +55 (47) 9676-7530
> Skype: gilberto.nunes36

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-- 
--- 
Fabrizio Cuseo - mailto:f.cuseo at panservice.it 
Direzione Generale - Panservice InterNetWorking 
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