Installation guide
Table Of Contents
- Preface
- Electromagnetic susceptibility
- Electromagnetic compliance
- Electromagnetic compliance for the European Union
- Australian C-Tick
- Seagate technical support services
- General description
- Initial setup information
- General information
- SCSI ID jumpers
- Drive termination
- Terminator power
- I/O circuits and data path widths
- Providing adequate cooling
- Mounting the drive and connecting cables
- Formatting the drive
- Quick reference desktop system notes
- Setting the SCSI ID jumpers
- Terminating the drive
- Terminator power
- Other applicable jumper options
- Setting the SCSI ID jumpers
- Terminating the drive
- Terminator power
- Other applicable jumper options
- Setting the SCSI ID jumpers
- Terminating the drive
- Applicable jumper options
Barracuda 4XL Installation Guide, Rev. B 15
Table 1. Drive characteristics
Interface Ultra SCSI [1]
Capacity Formatted [2] Unformatted
ST34572 4.55 Gbyte [2] 6.26 Gbyte
ST32272 2.26 Gbyte [2] 3.13 Gbyte
Recording
Cylinders (user) 6,311
Read/write data heads
ST34572 8
ST32272 4
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)
ST34572 92–140 Mbits/sec
ST32272 92–140 Mbits/sec
Maximum synchronous SCSI transfer rate
N model 20 Mbytes/sec
W/WD/WC/DC models 40 Mbytes/sec
Multi-segmented cache 480 Kbytes
[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
sparing equivalent to 118 spare sectors per six cylinder region.
Spares are located at the end of each sparing region.
[3] Includes controller overhead.