.oO(theorem@fluffy ~) diskinfo -t /dev/da0s1d
/dev/da0s1d
        512             # sectorsize
        1500077182464   # mediasize in bytes (1.4T)
        2929838247      # mediasize in sectors
        182373          # Cylinders according to firmware.
        255             # Heads according to firmware.
        63              # Sectors according to firmware.

Seek times:
        Full stroke:      250 iter in   9.114372 sec =   36.457 msec
        Half stroke:      250 iter in   6.531692 sec =   26.127 msec
        Quarter stroke:   500 iter in   9.669355 sec =   19.339 msec
        Short forward:    400 iter in   5.475531 sec =   13.689 msec
        Short backward:   400 iter in   5.566191 sec =   13.915 msec
        Seq outer:       2048 iter in   0.739348 sec =    0.361 msec
        Seq inner:       2048 iter in   0.857562 sec =    0.419 msec
Transfer rates:
        outside:       102400 kbytes in   6.047198 sec =    16933 kbytes/sec
        middle:        102400 kbytes in   5.431839 sec =    18852 kbytes/sec
        inside:        102400 kbytes in   8.437017 sec =    12137 kbytes/sec