Seagate BARRACUDA 4 Family Installation Manual page 17

Barracuda 4 Installation Guide, Rev. E
Characteristics of ST15150 drives
SCSI-2 Interface 1
Capacity
Unformatted
2
Formatted
Recording
Cylinders (user accessible)
Read/Write heads
Servo heads
Avg bytes/track
Modulation
Synchronous SCSI rate
Max burst transfer
3
Seek time
Average read
Average write
Disc rotation
RPM
Average latency
Multi-segmented cache
Physical
Available to user
1
Can also be operated according to SCSI-1 protocol.
2
Standard factory units are formatted as follows:
512 data bytes per sector
9 spare sectors per cylinder
1 cylinder at the inner track reserved for spares
3
Not including on-board controller overhead.
N/ND W/WD/WC/DC
Fast Fast & Wide
5,062 Mbytes 5,062 Mbytes
4,294 Mbytes 4,294 Mbytes
3,711 3,711
21 21
1 1
64,160 64,160
RLL 1,7 code RLL 1,7 code
10 Mbytes/sec 20 Mbytes/sec
8.0 msec 8.0 msec
9.0 msec 9.0 msec
7,200 7,200
4.17 msec 4.17 msec
1,024 Kbytes 1,024 Kbytes
977 Kbytes 977 Kbytes
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