ad8: 114473MB <Seagate ST9120823AS 3.AHE> at ata4-master SATA300
Code:
/dev/ad8
512 # sectorsize
120034123776 # mediasize in bytes (112G)
234441648 # mediasize in sectors
232581 # Cylinders according to firmware.
16 # Heads according to firmware.
63 # Sectors according to firmware.
ad:5NJ185HQ # Disk ident.
I/O command overhead:
time to read 10MB block 0.260630 sec = 0.013 msec/sector
time to read 20480 sectors 1.152744 sec = 0.056 msec/sector
calculated command overhead = 0.044 msec/sector
Seek times:
Full stroke: 250 iter in 6.008694 sec = 24.035 msec
Half stroke: 250 iter in 4.085139 sec = 16.341 msec
Quarter stroke: 500 iter in 6.405515 sec = 12.811 msec
Short forward: 400 iter in 1.810569 sec = 4.526 msec
Short backward: 400 iter in 1.762313 sec = 4.406 msec
Seq outer: 2048 iter in 0.224249 sec = 0.109 msec
Seq inner: 2048 iter in 0.147590 sec = 0.072 msec
Transfer rates:
outside: 102400 kbytes in 1.727682 sec = 59270 kbytes/sec
middle: 102400 kbytes in 2.047073 sec = 50023 kbytes/sec
inside: 102400 kbytes in 3.137049 sec = 32642 kbytes/sec