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Old 13th November 2008
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Oliver_H Oliver_H is offline
Real Name: Oliver Herold
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Join Date: May 2008
Location: Germany
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ad4: 76318MB <Seagate ST380215AS 3.AAD> at ata2-master SATA150

Code:
/dev/ad4
	512         	# sectorsize
	80025280000 	# mediasize in bytes (75G)
	156299375   	# mediasize in sectors
	155058      	# Cylinders according to firmware.
	16          	# Heads according to firmware.
	63          	# Sectors according to firmware.
	ad:6RA3Q2JE 	# Disk ident.

I/O command overhead:
	time to read 10MB block      0.159474 sec	=    0.008 msec/sector
	time to read 20480 sectors   1.646036 sec	=    0.080 msec/sector
	calculated command overhead			=    0.073 msec/sector

Seek times:
	Full stroke:	  250 iter in   6.099554 sec =   24.398 msec
	Half stroke:	  250 iter in   4.340127 sec =   17.361 msec
	Quarter stroke:	  500 iter in   6.732474 sec =   13.465 msec
	Short forward:	  400 iter in   1.277421 sec =    3.194 msec
	Short backward:	  400 iter in   1.257770 sec =    3.144 msec
	Seq outer:	 2048 iter in   0.179644 sec =    0.088 msec
	Seq inner:	 2048 iter in   0.200410 sec =    0.098 msec
Transfer rates:
	outside:       102400 kbytes in   1.378737 sec =    74271 kbytes/sec
	middle:        102400 kbytes in   1.709696 sec =    59894 kbytes/sec
	inside:        102400 kbytes in   2.821554 sec =    36292 kbytes/sec
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