Seagate ST32271N/W/WC/WD/DC, ST32171N/W/WC/WD/DC, ST34571N/W/WC/WD/DC Drive characteristics, Rpm

Barracuda 4LP Installation Guide, Rev. B		13
Table 1. Drive characteristics
Interface	UltraSCSI [1]
Capacity	Formatted [2]	Unformatted
ST34371	4.35 Gbyte [2]	5.31 Gbyte
ST32171	2.16 Gbyte [2]	2.65 Gbyte
ST34571	4.55 Gbyte [2]	5.54 Gbyte
ST32271	2.26 Gbyte [2]	2.77 Gbyte
Recording
Cylinders (user)	5,178
Read/write data heads
ST32171/ST32271	5
ST34371/ST34571	10
Access time [3]
Average read	9.4 msec
Average write	10.4 msec
Disk rotation
RPM	7,200 r/min
Average latency	4.17 msec
Internal transfer rate (variable with zone)
ST32171/ST34371	80–122 Mbits/sec
ST32271/ST34571	80–126 Mbits/sec
Maximum synchronous SCSI transfer rate
N model	20 Mbytes/sec
W/WD/WC/DC models	40 Mbytes/sec
Multi-segmented cache	442 Kbytes

[1]Can also be operated according to SCSI-1 and SCSI-2 protocols. Referred to also as “SCSI Fast-20.”