TrueNAS CORE and SCALE utilize the enterprise OpenZFS filesystem, allowing system administrators to take instant, atomic snapshots of multi-terabyte datasets. However, archiving these raw zfs send streams to an offsite cloud destination typically requires staging gigabytes of raw dump files on local disks.
Piping the stdout of zfs send directly into rclone rcat streams raw encrypted ZFS snapshots directly into Google Drive with 0 bytes of local staging disk required. The snapshot streams in real-time, compressed with ZSTD, providing offsite disaster recovery for entire virtual machine pools.
The TrueNAS One-Line ZFS Cloud Backup Command
# Stream a compressed ZFS snapshot directly to Google Drive
zfs send -R pool0/vm-disks@snapshot_20261023 | zstd -1 | rclone rcat "gdrive:TrueNAS_Vault/zfs_vm_disks_20261023.zfs.zst" --drive-chunk-size 128M --stats 15s