ZFS statistics tool for FreeBSD, but with additional remote support.
Therefore it is possible to just install perl with Net::OpenSSH module on your client and gather statistics from your FreeBSD servers. For example you can do this: zfs-stats -a firstname.lastname@example.org This is basically what I added. The rest is from the original author.
The zfs-stats script itself displays general ZFS information and human-readable ZFS statistics of the following subsystems:
- DMU (zfetch)
- vdev cache
The script is a fork of Jason J. Hellenthals' arc_summary.pl
Availability in FreeBSD ports tree: sysutils/zfs-stats