Appendix a - technical specifications, Mass storage specifications, Hard disk drive – HP 2000 User Manual

Page 97

Appendix A - Technical Specifications

Mass Storage Specifications

Hard Disk Drive

The hard disk drive can be removed by the user for easy upgrades.

Hard drive manufacturers are subject to change without notice.

Table 24 - Hard Disk Drive Specifications

810-million-byte

1.35-billion-byte 1.44-billion-

byte

2.1-billion-byte 3.1-billion-

byte

Manufacturer

Toshiba

Interface

ATA2

ATA2 /ATA3

Recording
Method

PRML (Partial
Response
Maximum
likelihood)

Heads

Peak Detect

MR (Magneto
Resistive)

Average access
(read)

13 ms

Track to track
seek

3 ms

Full Track

25 ms

Average latency

7.14 ms

7.4 ms

6.18 ms

Rotational speed 4200 rev/m

4200 rev/m

4852 rev/m

Media Transfer
rate

24.7 (inner), 44.9
(Outer) Mbits/sec

38.1 (inner), 54.8
(Outer) Mbits/sec

38.6 (inner),
69.8 (Outer)
Mbits/sec

43.8 (inner),
68.9 (Outer)
Mbits/sec

Buffer to host

16.6 Mbytes/sec

16.6 Mbytes/sec 16.6 Mbytes/sec 16.6

Mbytes/sec

Buffer size

128KB (read and
write segmented
buffer)

128KB (read
and write
segmented
buffer)

Spindle start time 5 sec (typical)

5 sec (typical)

Reliability:

MTBF: Power-
on Hours

300,000 hours

Unrecoverable
errors

1.0E-13 bits
transfer

Configuration:

Sector Size

512 Bytes

User Cylinders 2,920

3,650

5,160

5,020

Data Heads

Disks