ad0: 114473MB <Hitachi HTS541612J9SA00 SBDOC70P> at ata0-master SATA150 | Laptop 2.5"
Code:
/dev/ad0
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:SB2D41E4CGEKKE # Disk ident.
I/O command overhead:
time to read 10MB block 0.287116 sec = 0.014 msec/sector
time to read 20480 sectors 2.480988 sec = 0.121 msec/sector
calculated command overhead = 0.107 msec/sector
Seek times:
Full stroke: 250 iter in 6.031056 sec = 24.124 msec
Half stroke: 250 iter in 5.037848 sec = 20.151 msec
Quarter stroke: 500 iter in 8.506920 sec = 17.014 msec
Short forward: 400 iter in 3.550424 sec = 8.876 msec
Short backward: 400 iter in 2.049560 sec = 5.124 msec
Seq outer: 2048 iter in 0.291115 sec = 0.142 msec
Seq inner: 2048 iter in 0.295479 sec = 0.144 msec
Transfer rates:
outside: 102400 kbytes in 2.690707 sec = 38057 kbytes/sec
middle: 102400 kbytes in 3.281864 sec = 31202 kbytes/sec
inside: 102400 kbytes in 5.554393 sec = 18436 kbytes/sec