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.”
