Import of snapshots?

The snapshots taken by PVE depend on the underlying storage.
* I'll assume you use a zfs-pool.
* then when you snapshot a VM without state each disk on the ZFS-pool gets snapshotted and is visible with `zfs list -t all` (or `zfs list - snapshot`)
* when you also include the VMs state a new zvol is created to which the guests state (roughly it's RAM and registers) are written

I hope this helps!
 
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