10,000 RPM Drive

/dev/aacd0slf
  512                 # sectorsize
  285184304640        # mediasize in bytes (266G)
  557000595           # mediasize in sectors
  34671               # Cylinders according to firmware
  255                 # Heads according to firmware
  63                  # Sectors according to firmware

Seek times:
  Full stroke:          250 iter in   3.386884 sec =    13.548 msec
  Half stoke:           250 iter in   4.840767 sec =    19.363 msec
  Quarter stroke:       500 iter in   9.431115 sec =    18.862 msec
  Short forward:        400 iter in   3.073183 sec =     7.683 msec
  Short backward:       400 iter in   4.502587 sec =    11.256 msec
  Seq outer:           2048 iter in   0.231539 sec =     0.113 msec
  Seq inner:           2048 iter in   0.181284 sec =     0.089 msec
Transfer rates:
  outside:           102400 kbytes in 1.872767 sec =     54678 kbytes/sec
  middle:            102400 kbytes in 3.536092 sec =     28959 kbytes/sec
  inside:            102400 kbytes in 3.571021 sec =     28675 kbytes/sec