- Constant-time snapshots: takes no additional space
- Clones: writable snapshots
- Backup/restore: incremental backups take time proportional to data changed
- End-to-end data integrity
- Dynamic striping: automatically distribute load across all devices
- Multiple independent prefetch streams, automatic length and stride detection
# zfs send -i tank/fs@A tank/fs@B > /backup/B-AThe time it takes to do a incremental backup is proportional to the amount of data changed, so you can easily use it to drive remote duplication. The following command sends a incremental once per minute to a remote host.
# zfs send -i tank/fs@11:31 tank/fs@11:32 | ssh host zfs receive -d /tank/fs(The examples are taken from the slides.)
The only drawback is that there is no ZFS support for Windows. Hopefully that will change in the not-too-distant-future.