[pve-devel] snapshot improvements

Alexandre DERUMIER aderumier at odiso.com
Fri Sep 28 08:45:40 CEST 2012


>>Ah, good to know. Besides, connecting with ssh looks still strange to me. 
no api for this...

<ut I guess we will only backup VM without snapshots, so we do not 
need that for backup purposes. 

>>BTW, is there really no way to delete nexenta snapshots used by another 
>>snapshot (snapshot merge)? If not, should we implement that on the qemu side? 

what do you mean by snapshot used by another snapshot?
ex:
image->snap1-snap2->you are here

you can delete snap1 without any problem, and without need to merge. 

the only thing with zfs, is that you can't rollback to snap1 without deleting snap2. 

----- Mail original ----- 

De: "Dietmar Maurer" <dietmar at proxmox.com> 
À: "Alexandre DERUMIER" <aderumier at odiso.com> 
Cc: pve-devel at pve.proxmox.com, "Stefan Priebe" <s.priebe at profihost.ag> 
Envoyé: Vendredi 28 Septembre 2012 06:40:10 
Objet: RE: [pve-devel] snapshot improvements 

> Subject: Re: [pve-devel] snapshot improvements 
> 
> do you mean : 
> backup the main image 
> then 
> backup each snasphot increment ? 

Yes, something like that. 

> zfs send can do incremental backup with "zfs send -I" 
> 
> http://docs.oracle.com/cd/E19082-01/817-2271/gfwqb/index.html 

Ah, good to know. Besides, connecting with ssh looks still strange to me. 

But I guess we will only backup VM without snapshots, so we do not 
need that for backup purposes. 

BTW, is there really no way to delete nexenta snapshots used by another 
snapshot (snapshot merge)? If not, should we implement that on the qemu side? 


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