[pve-devel] some news for snapshots
aderumier at odiso.com
Mon Aug 27 11:17:42 CEST 2012
>>A snapshot must include full VM state!
What is the benefit ?
Rollbacking a snapshot and start the vm with memory at the point of the snapshot ?
If the datas are correctly flushed, I don't see the benefit vs restarting the vm with zero memory.
If I have vm with 64GB of memory, I don't want 10min of downtime to take the snasphot.
(I don't want to have any vm interruption to take the snasphot)
----- Mail original -----
De: "Dietmar Maurer" <dietmar at proxmox.com>
À: "Alexandre DERUMIER" <aderumier at odiso.com>
Cc: pve-devel at pve.proxmox.com
Envoyé: Lundi 27 Août 2012 10:54:05
Objet: RE: [pve-devel] some news for snapshots
> >>AFAIK, you can already create a snapshot of COW2 files using 'savevm'
> >>So I think the basic code must be there? It is just not implemented
> >>inside the 'blockdev-snapshot-sync' command.
> Yes, but savevm pause the vm and make a full snapshot (include
> memory,etc..), and It can take several minutes if you have big memory vm.
Sorry, but 'blockdev-snapshot-sync' also does that (at least it should do that).
A snapshot must include full VM state!
> I'll do some tests with savevm today to see how it's works.
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