[pve-devel] savevm tests

Alexandre DERUMIER aderumier at odiso.com
Wed Aug 29 17:02:54 CEST 2012


> exemple : add a disk, take a snap1, add a second disk, take a snap2, now
> rollback to snap1 ?

>>I guess we will always restart the VM with correct configuration when we do
>>a rollback?

Oh yes, we need to remove the disk from the conf.
But not delete it if we want to rollback again to snap2.




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

De: "Dietmar Maurer" <dietmar at proxmox.com> 
À: "Alexandre DERUMIER" <aderumier at odiso.com>, pve-devel at pve.proxmox.com 
Envoyé: Mercredi 29 Août 2012 16:44:49 
Objet: RE: [pve-devel] savevm tests 

> lvm + qcow2 
> ----------- 
> It doesn't work :( 
> savevm can take the snapshot, but when trying to rollback, it doesn't work. 
> also you can have a lvm disk of 10GB, format with qcow2 with 5GB, the guest 
> see 10GB. 

We need to know if that is a bug or if that is expected behavior ;-) 
Do they plan to fix that? 

> savevm works with mutiples disk, and can mix differents storage, they just 
> need to support savevm command. 
> If you have a qcow2 + raw, it thrown an error and don't make the snapshot. 
> 
> note :I don't know how it's works in you don't have the snapshot on all the 
> disks. 
> exemple : add a disk, take a snap1, add a second disk, take a snap2, now 
> rollback to snap1 ? 

I guess we will always restart the VM with correct configuration when we do 
a rollback? 

> I have also try with the patch to disable memory saving, I didn't have had any 
> problems. 
> Maybe it could be usefull to add an option to not save memory ? 

Yes, that is useful. 

> Also maybe can we add support for qemu guest agent, to freeze filesystem in 
> this case. 

yes. 




-- 

-- 



	

Alexandre D e rumier 

Ingénieur Systèmes et Réseaux 


Fixe : 03 20 68 88 85 

Fax : 03 20 68 90 88 


45 Bvd du Général Leclerc 59100 Roubaix 
12 rue Marivaux 75002 Paris 


More information about the pve-devel mailing list