Giảm dung lượng ổ đĩa - Reduce ( Shrink ) VM Disk Space in Proxmox

Ref: https://forum.proxmox.com/threads/decrease-a-vm-disk-size.122430/ 

 Clone hay backup VM trước sau đó test thử: 

 Hai command cơ bản: 

 lvm lvreduce -L -99g pve/vm-114-disk-0

qm rescan