Il giorno 17/ago/2013, alle ore 03:43, MORITA Kazutaka <morita.kazutaka at gmail.com> ha scritto: > At Fri, 16 Aug 2013 17:03:54 +0800, > Liu Yuan wrote: >> >> On Fri, Aug 16, 2013 at 10:48:17AM +0200, Ing. Luca Lazzeroni - Trend Servizi Srl wrote: >>> Hi, >>> I'm trying to use external snapshot feature of QEMU/libVirt with sheepdog baked vdi to take VDI live backups without using sheepdog snapshots. >>> This is to avoid the problem of disk-space unreleased on snapshot deletion. >> >> Maybe you can simply use qemu-img sheepdog:image local_iamge to read the image >> out of cluster? >> >> The release of unused objects from deleted snapshots will be supported in the >> up comming series of v0.7.x, I guess in about one month or two. > > I don't think the object reclaim patches should go into stable-0.7. > The feature changes the underlying store layout and breaks backward > compatibility. Does it mean that the whole cluster needs to be updated simultaneously or that we need to reformat it after install ? Still the protocol be compatible with qemu block driver used in qemu 1.5 or we need to upgrade qemu too ? > > I'll resend the series after rebasing and adding a document. Testing > and reviewing would be greatly appreciated. Those are the missing > things to merge the feature. > Ok, thanks. One question; did you implement a commit/rollback feature on snapshot deletion and space reclaim ? > Thanks, > > Kazutaka Ing. Luca Lazzeroni - Trend Servizi Srl Responsabile R&D http://www.trendservizi.it |