Storage: ZFS - Proxmox VE
pve.proxmox.com/wiki/Storage:_ZFSStorage Features. ZFS is probably the most advanced storage type regarding snapshot and cloning. The backend uses ZFS datasets for both VM images (format raw) and container data (format subvol ). ZFS properties are inherited from the parent dataset, so you can simply set defaults on the parent dataset. Table 1.
ZFS on Linux - Proxmox VE
https://pve.proxmox.com/wiki/ZFS_on_LinuxZFS is a combined file system and logical volume manager designed by Sun Microsystems. Starting with Proxmox VE 3.4, the native Linux kernel port of the ZFS file system is introduced as optional file system and also as an additional selection for the root file system. There is no need for manually compile ZFS modules - all packages are included.