Encrypted ZFS Backups with zfsbackrest: An Experimental Tool

zfsbackrest is an experimental tool providing pgbackrest-style encrypted backups for ZFS filesystems. It requires the age tool for key generation; encryption is mandatory. It supports full, diff, and incremental backups, and offers cleanup for expired and orphaned backups. Restoring requires your age identity file (private key). zfsbackrest leverages zfs snapshots for backup and restore, without directly modifying zfs datasets.