Windows kstat

Windows kstat

kstat is the utility used on illumos to query the kernel for various statistics and detailed information. It performs more of less the same responsibly as /proc/ on Linux.

Simply run the command to dump everything:

kstat.exe
(output is large)

You can also use it to set certain tunables in the kernel, for example:

To set max ARC size to 512 MiB:
kstat.exe -w zfs:0:tunable:zfs_arc_max=536870912

Dump the "zfs:0:tunable" sub-section to list the available knobs to fiddle with.

A setting is not retained over reboot, and will need to be set each boot. (In the future, there will be something to handle this automatically)

Setting hostid (before you import/create any pools)

 kstat.exe -w zfs:0:tunable:hw_hostid=11223344