Il 01-05-2018 22:25 Eric Blake ha scritto:
That's fairly accurate. Also, mixing internal and external snapshots at the same time is likely to trigger some known data-loss problems, if you are not extremely careful, so for now, just pick one or the other and stick to it (I hope to someday enhance qemu to refuse operations that would risk data loss, or to perform a slower version of the operation with the same result instead of its current fast but wrong implementations, when dealing with mixed-internal/external backing chains).
https://lists.gnu.org/archive/html/qemu-devel/2018-04/msg00865.html
Ok, I think I'll continue to use RAW images + filesystem snapshots + external snapshot when required. It is unfortunate that we have no GUI to manage external snapshots. I even remember that external snapshot remove was not supported - I had to use the --metadata flag and a plain "rm" to remove them (or using --no-metadata in the first place)[1]. Does it remain the current behavior? Thanks. [1] https://www.redhat.com/archives/libvirt-users/2015-September/msg00037.html -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti@assyoma.it - info@assyoma.it GPG public key ID: FF5F32A8