Seagate barracuda 9 st19171n 用户手册

12

Barracuda 9 Installation Guide, Rev. A

Interface

UltraSCSI

Capacity

Unformatted

11.7 Gbytes

Formatted

9.1 Gbytes

Recording

Cylinders (user)

5,273

Read/write data heads

20

Servo heads

Embedded

Seek time

Average read

9.0 msec

Average write

10.5 msec

Disc rotation

RPM

7,200

Average latency

4.17 msec

Internal transfer rate

80 to 124

(Mbits/sec, variable with zone)

Max sync. SCSI transfer rate

N

20 Mbytes/sec

W/WD/WC/DC

40 Mbytes/sec

Multi-segmented cache

512 Kbytes
2,048 Kbytes (optional)

1

Can also be operated according to SCSI-1 and SCSI-2 proto-

cols.

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.