Yes indeed, this was with live vm. This make sense why my results are strange. I'll try with savevm Thanks ! ----- Mail original ----- De: "MORITA Kazutaka" <morita.kazutaka at lab.ntt.co.jp> À: "Alexandre DERUMIER" <aderumier at odiso.com> Cc: "MORITA Kazutaka" <morita.kazutaka at lab.ntt.co.jp>, sheepdog at lists.wpkg.org Envoyé: Mardi 28 Août 2012 05:25:02 Objet: Re: [sheepdog] snapshot rollback ? At Mon, 27 Aug 2012 09:24:57 +0200 (CEST), Alexandre DERUMIER wrote: > > Ok, I have upgrade to last sheepdog git,seem to work better but > > now: > > #collie vdi create image1 1G > start qemu with file=sheepdog:image1 > #collie vdi tree > image1---(you are here) > > content of image1: > #touch beforesnap1 / > #ls -l > /beforesnap1 > > now I take a snapshot snap1: > #collie vdi snapshot -s snap1 image > #collie vdi tree > image1---[2012-08-27 09:07]---(you are here) Are you trying to take a snapshot of a running VM? Unfortunately, the only way to take live snapshots is a 'savevm' command from qemu monitor now. To support live snapshots from collie or qemu-img commands, we need to modify sheepdog block driver code so that it reloads a vdi object after a snapshot is taken. Thanks, Kazutaka -- -- 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 |