zfs-stats displays ZFS statistics in human-readable format including
ARC, L2ARC, zfetch (DMU) and vdev cache statistics.

This script is a fork of Jason J. Hellenthal's <jhell@DataIX.net>
arc_summary.pl: http://code.google.com/p/jhell/

WWW:	http://www.vx.sk/zfs-stats/