PoAn Yang

Hi @brandboat and @WebberHuang1118, I have addressed all comments. Could you review again when you have time? Thank you.

Hi @tserong, thanks for the review. The VMImage backup is relied on LH BackupBackingImage. If there is backup for a Volume which is from a BackingImage, LH will automatically upload...

After some investigation, we can't get migration progress from [VirtualMachineInstance.Status.MigrationState](https://github.com/kubevirt/kubevirt/blob/e4c7d4e53269d2c416a4daae761b262b668529ce/staging/src/kubevirt.io/api/core/v1/types.go#L637-L684). If we look into code, we can find [virt-launcher gets migration status](https://github.com/kubevirt/kubevirt/blob/e4c7d4e53269d2c416a4daae761b262b668529ce/pkg/virt-launcher/virtwrap/live-migration-source.go#L686-L699) from [Domain](https://gitlab.com/libvirt/libvirt-go-module/-/blob/master/domain.go?ref_type=heads#L3209-3243). If we can find a way...

Hi @noahgildersleeve, I think this is expected. When we use `VolumeSnapshot` to backup a volume, Longhorn doesn't really copy the data to somewhere. It's more like a pointer to the...