andrijapanicsb commented on issue #3969: Snapshot deletion issues URL: https://github.com/apache/cloudstack/pull/3969#issuecomment-613612963 Clear, I did a bit of reading myself. Say, what about corruption when creating snapshots? - in recent qemu releases (2.10) qemu-img actually opens qcow2 with read-write access instead of read-only previously (don't ask me why, documented behavior). This would probably mean that even backing up the snap to Secondary Storage (with qemu 2.10) will not work (requires a use of --force-share flag, which we don't have implemented in ACS) unless the VM is suspended - did you have a change to test qemu 2.10 (that is separate Centos SIG repo), etc? What about corruption while creating snapshots with stock qemu version 1.53?
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