I'm writing a new iostat which grabs its information from the new
disk internals structure.  As one of the 3 fields of the old iostat
can no longer be used (ms per seek), just what statistics would be
desired?

Essentially I have a transfer count, a byte count, and an elapsed time
counter.  I can do any permutation of things like xfer/sec, bytes/sec,
Mbytes/sec, sectors/sec, bytes/xfer, etc.

Comments?

-j