io by filesystem???

I'm cross-posting from the "Unix for Dummies Q&A" forum as I didn't get any response there.

I'm wanting to drill down one level deeper from iostat. For example, for the following iostat output, I'd like to now understand the io for hdisk2 by filesystem:

Disks: % tm_act Kbps tps Kb_read Kb_wrtn
hdisk3 4.7 1792.0 80.7 0 5376
hdisk1 7.0 1997.3 95.3 80 5912
hdisk2 8.3 2962.7 85.7 4148 4740

Another question, is there a way to easily list all filesystems related to a given hdisk??

If you are cross-posting, then you are breaking the rules - see #4.
Closing thread. Anyone who wants to assist can post to his original thread.