Seagate ST15150W/WD/WC 用户手册
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Barracuda 4 Installation Guide, Rev. E
15
Characteristics of ST15150 drives
N/ND
W/WD/WC/DC
SCSI-2 Interface
1
Fast
Fast & Wide
Capacity
Unformatted
5,062 Mbytes
5,062 Mbytes
Formatted
2
4,294 Mbytes
4,294 Mbytes
Recording
Cylinders (user accessible)
Cylinders (user accessible)
3,711
3,711
Read/Write heads
21
21
Servo heads
1
1
Avg bytes/track
64,160
64,160
Modulation
RLL 1,7 code
RLL 1,7 code
Synchronous SCSI rate
Max burst transfer
10 Mbytes/sec 20 Mbytes/sec
Seek time
3
Average read
8.0 msec
8.0 msec
Average write
9.0 msec
9.0 msec
Disc rotation
RPM
7,200
7,200
Average latency
4.17 msec
4.17 msec
Multi-segmented cache
Physical
1,024 Kbytes
1,024 Kbytes
Available to user
977 Kbytes
977 Kbytes
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
9 spare sectors per cylinder
1 cylinder at the inner track reserved for spares
3
Not including on-board controller overhead.