rendered paste body%diskinfo -c /dev/gvinum/media
/dev/gvinum/media
512 # sectorsize
80027320320 # mediasize in bytes (75G)
156303360 # mediasize in sectors
I/O command overhead:
time to read 10MB block 0.395564 sec = 0.019 msec/sector
time to read 20480 sectors 3.189842 sec = 0.156 msec/sector
calculated command overhead = 0.136 msec/sector
%diskinfo -c /dev/ad0
/dev/ad0
512 # sectorsize
20020396032 # mediasize in bytes (19G)
39102336 # mediasize in sectors
38792 # Cylinders according to firmware.
16 # Heads according to firmware.
63 # Sectors according to firmware.
I/O command overhead:
time to read 10MB block 0.456698 sec = 0.022 msec/sector
time to read 20480 sectors 2.727879 sec = 0.133 msec/sector
calculated command overhead = 0.111 msec/sector