Show alternate disk statistics. Displays kilobytes transfered, number of transfers, and time spent in transfers. Use of this flag disables the default display. Show the running total values, rather than an average. Show tty statistics.
Pause wait seconds between each display.
If no repeat count is specified, the default is infinity. The header of the field is the disk name and unit number. If more than four disk drives are configured in the sys- tem, iostat displays only the first four drives.