andrijapanicsb edited a comment on issue #3724: Storage-based Snapshots for KVM VMs URL: https://github.com/apache/cloudstack/pull/3724#issuecomment-573900008 @slavkap - nice stuff as already commented! 1. I see "lots" of dependency which has to be documented properly in upstream documentation (preferably) but also I would like to see it documented in the description of the global setting - "...requires qemu 1.6+ and the qemu-guest-agent installed inside a VM" 2. Do you know how well qemu-guest-agent is supported/possible on Windows guests - lot's of people will be running Windows VMs as well - covering just Linux workloads would be suboptimal. 3. You are mentioning QCOW format and behaviour about it. Ceph uses RAW format from Qemu/Libvirt perspective, but possibly is marked as QCOW2 in DB (I recall some hassle around DB format in past) - can you please elaborate about this - how does it work with Ceph vs other "real" QCOW2 formats? Store 4. Currently, due to someone noticing bugs in QCOW2 snapshots (or restore of) where the volume/filesystem of the guest gets corrupted - volume snapshots have been disabled for running VMs for KVM. @weizhouapache can you comment on this? I'm wondering if we might hit the same issue here as well 5. Did you guys test this on the busy VMs (IO and CPU heavy workloads)? thx
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