Помимо информации о дисках, позволяет провести быструю проверку производительности.

Пример вывода:

diskinfo -t /dev/ad0
/dev/ad0
        512             # sectorsize
        320072933376    # mediasize in bytes (298G)
        625142448       # mediasize in sectors
        620181          # Cylinders according to firmware.
        16              # Heads according to firmware.
        63              # Sectors according to firmware.
        ad:WD-WMAT14951847      # Disk ident.

Seek times:
        Full stroke:      250 iter in  18.261622 sec =   73.046 msec
        Half stroke:      250 iter in   5.099161 sec =   20.397 msec
        Quarter stroke:   500 iter in   8.273972 sec =   16.548 msec
        Short forward:    400 iter in   3.134996 sec =    7.837 msec
        Short backward:   400 iter in   1.003357 sec =    2.508 msec
        Seq outer:       2048 iter in   0.363736 sec =    0.178 msec
        Seq inner:       2048 iter in   0.295395 sec =    0.144 msec
Transfer rates:
        outside:       102400 kbytes in   1.214796 sec =    84294 kbytes/sec
        middle:        102400 kbytes in   1.383003 sec =    74042 kbytes/sec
        inside:        102400 kbytes in   2.714327 sec =    37726 kbytes/sec

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