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16 Barracuda 9LP Installation Guide, Rev. E
Table 1. Drive characteristics
Interface UltraSCSI [1]
Capacity Formatted [2] Max. data blocks [2]
ST39173 9.105 Gbyte [2] 10F59C7h [2]
ST34573 4.551 Gbyte [2] 87A25Bh [2]
Recording
Cylinders (user) 7,501
Read/write data heads
ST39173 10
ST34573 5
Access time [3]
Average read 7.4 msec
Average write 8.2 msec
Disk rotation
RPM 7,200 r/min
Average latency 4.17 msec
Internal transfer rate (variable with zone)
ST39173 120–190 Mbits/sec
ST34573 120–190 Mbits/sec
Maximum synchronous SCSI transfer rate
N model 20 Mbytes/sec
W/WD/WC/DC models 40 Mbytes/sec
LW/LC 80 Mbytes/sec
[1] Can also be operated according to SCSI-1 and SCSI-2 protocols.
Referred to also as “SCSI Fast-20.”
[2] Standard factory units are formatted 512 data bytes per sector with
spare tracks reserved for reallocating bad sectors.
[3] Includes controller overhead.