Proxmox VE supports multiple storage backends: ZFS, LVM-Thin, Ceph/RBD, Directory, and NFS. Choose based on your HA requirements and performance needs.
Creating a ZFS Mirror Pool
zpool create -f -o ashift=12 -O compression=lz4 -O atime=off tank mirror /dev/sdb /dev/sdc
# Add to Proxmox
pvesm add zfspool tank-storage --pool tank --sparse 1
Never use ZFS on top of a hardware RAID controller. ZFS needs direct access to raw disks for data integrity and proper operation.