The fsstat utility collects and prints kstats per zone, including aggregations. By default, the utility reports an aggregate of all running zones. A per-fstype kstat is produced for each zone. The global zone kstat reports its exclusive activity. The global zone can see the kstats of all zones on the system. Non-global zones only see the kstats associated with the zone in which the utility is run. A non-global zone cannot monitor file system activity in other zones.
For more information, see the fsstat(1M) man page and Reporting Per-Zone fstype Statistics for all Zones.