[pve-devel] VM snapshot problem

Alexandre DERUMIER aderumier at odiso.com
Fri Aug 24 12:02:07 CEST 2012


response to myself:
>Is it possible to do some external qcow2 file snapshot on top of a raw file ? 

http://fedoraproject.org/wiki/Features/Virt_Live_Snapshots

"
QEMU has had snapshotting capabilities for a long time, but they have always required the guest to be paused/stopped for a short period of time while the storage was snapshoted. Live snapshots allow for qemu and libvirt to snapshot a the guest's storage with no downtime. This even works on guests with 'raw' disk images: libvirt will snapshot using an external qcow2 file, and transparently switch the guest over to running off the new external image.
"

So yes, It create a qcow2 external file.

Should be tested.


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

De: "Alexandre DERUMIER" <aderumier at odiso.com> 
À: "Dietmar Maurer" <dietmar at proxmox.com> 
Cc: pve-devel at pve.proxmox.com 
Envoyé: Vendredi 24 Août 2012 11:55:49 
Objet: Re: [pve-devel] VM snapshot problem 

Yes, I was reading it currently. 

Is it possible to do some external qcow2 file snapshot on top of a raw file ? 

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

De: "Dietmar Maurer" <dietmar at proxmox.com> 
À: "Alexandre DERUMIER" <aderumier at odiso.com> 
Cc: pve-devel at pve.proxmox.com 
Envoyé: Vendredi 24 Août 2012 11:46:24 
Objet: RE: [pve-devel] VM snapshot problem 

I guess you also know this page: 

http://wiki.qemu.org/Features/Snapshots 

> -----Original Message----- 
> From: Alexandre DERUMIER [mailto:aderumier at odiso.com] 
> Sent: Freitag, 24. August 2012 11:22 
> To: Dietmar Maurer 
> Cc: pve-devel at pve.proxmox.com 
> Subject: Re: [pve-devel] VM snapshot problem 
> 
> see kvm slides from redhat 
> https://events.linuxfoundation.org/slides/2011/linuxcon- 
> japan/lcj2011_sorensen.pdf 



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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 
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-- 

-- 



	

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 


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