How to backup Unused/Detached Disk

[SamTzu]

How to backup/copy "Unused Disk 0" sdb-lvm:vm2404-disk-1 from Proxmox host using rsync?
I can "see it" on Proxmox GUI but since it's not mounted I'm not sure how to access it remotely.
(SDB is LVM.)

 

[floh8]

LVM use block storage so u cant use rsync. Best is to create a dummy vm and add the disks there.