Snapshot as volume chain for file level storage, use cases?

VictorSTS

Distinguished Member
Oct 7, 2019
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Spain
Hello,

PVE 9 added "Support for snapshots as volume chains on Directory/NFS/CIFS storages (technology preview)". On any file level storage, like a directory or an NFS, you can use QCOW2 format for the disk(s) of your VMs, which already provides snapshot functionality and in some aspects in a better way than volume-chain. Also, QCOW2 disks can only be used in VMs: LXC still can't get snapshots on file level storages even with the volume-chain feature.

Which would be the use case for using snapshot as volume chain on file level access storage?
What am I missing here?

Thanks!