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Old 28th November 2010
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vermaden vermaden is offline
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Code:
# diskinfo -c -v -t ada0
ada0
	512         	# sectorsize
	160041885696	# mediasize in bytes (149G)
	312581808   	# mediasize in sectors
	0           	# stripesize
	0           	# stripeoffset
	310101      	# Cylinders according to firmware.
	16          	# Heads according to firmware.
	63          	# Sectors according to firmware.
	CVPO01160261160AGN	# Disk ident.

I/O command overhead:
	time to read 10MB block      0.062244 sec	=    0.003 msec/sector
	time to read 20480 sectors   2.370014 sec	=    0.116 msec/sector
	calculated command overhead			=    0.113 msec/sector

Seek times:
	Full stroke:	  250 iter in   0.050404 sec =    0.202 msec
	Half stroke:	  250 iter in   0.035163 sec =    0.141 msec
	Quarter stroke:	  500 iter in   0.210494 sec =    0.421 msec
	Short forward:	  400 iter in   0.049615 sec =    0.124 msec
	Short backward:	  400 iter in   0.085646 sec =    0.214 msec
	Seq outer:	 2048 iter in   0.326711 sec =    0.160 msec
	Seq inner:	 2048 iter in   0.231657 sec =    0.113 msec
Transfer rates:
	outside:       102400 kbytes in   0.538245 sec =   190248 kbytes/sec
	middle:        102400 kbytes in   0.568161 sec =   180231 kbytes/sec
	inside:        102400 kbytes in   0.550574 sec =   185988 kbytes/sec

# dmesg | grep ada0
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <INTEL SSDSA2M160G2GC 2CV102HD> ATA-7 SATA 2.x device
ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
ada0: Command Queueing enabled
ada0: 152627MB (312581808 512 byte sectors: 16H 63S/T 16383C)
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