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Old 14th November 2008
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tangram tangram is offline
Real Name: Ricardo Jesus
Port Guard
 
Join Date: May 2008
Location: Portugal
Posts: 36
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ad0: 4103MB <Seagate ST34321A 3.04> at ata0-master UDMA33
Code:
/dev/ad0
        512             # sectorsize
        4303272960      # mediasize in bytes (4.0G)
        8404830         # mediasize in sectors
        8894            # Cylinders according to firmware.
        15              # Heads according to firmware.
        63              # Sectors according to firmware.
        ad:GT430125     # Disk ident.

I/O command overhead:
        time to read 10MB block      1.061872 sec       =    0.052 msec/sector
        time to read 20480 sectors  12.702438 sec       =    0.620 msec/sector
        calculated command overhead                     =    0.568 msec/sector

Seek times:
        Full stroke:      250 iter in   5.703315 sec =   22.813 msec
        Half stroke:      250 iter in   5.139045 sec =   20.556 msec
        Quarter stroke:   500 iter in   8.856557 sec =   17.713 msec
        Short forward:  diskinfo: read error or disk too small for test.: Input/output error
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