Elite 23 Installation Guide, Rev. A

13

Table 1: Drive characteristics

 

Interface

UltraSCSI1

Capacity

 

Unformatted

29.6 Gbytes

Formatted2

23.4 Gbytes

Recording

 

Cylinders (user)

6,880

Read/write data heads

28

Servo heads

Embedded

Seek time (typical)3

 

Average read

13.2 msec

Average write

14.2 msec

Disc rotation

 

r/min

5,400 +0.5%

Average latency

5.55 msec

Internal transfer rate

85.9 to 123

(Mbits/sec, variable with zone)

 

Max sync. SCSI transfer rate

 

N

20 Mbytes/sec

W/WD

40 Mbytes/sec

Multi-segmented cache

2,048 Kbytes

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

2Standard factory units are formatted as follows:

512 data bytes per sector

6 cylinders per region

82 spares per region

3Not including on-board controller overhead.

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Seagate ST423451N/W/WD manual Drive characteristics