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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 Toshiba Toshiba Toshiba Toshiba
Interface ATA2 ATA2 ATA2 /ATA3 ATA2 /ATA3 ATA2 /ATA3
Recording
Method
PRML (Partial
Response
Maximum
likelihood)
PRML (Partial
Response
Maximum
likelihood)
PRML (Partial
Response
Maximum
likelihood)
PRML (Partial
Response
Maximum
likelihood)
PRML (Partial
Response
Maximum
likelihood)
Heads Peak Detect MR (Magneto
Resistive)
MR (Magneto
Resistive)
MR (Magneto
Resistive)
MR (Magneto
Resistive)
Average access
(read)
13 ms 13 ms 13 ms 13 ms 13 ms
Track to track
seek
3 ms 3 ms 3 ms 3 ms 3 ms
Full Track 25 ms 25 ms 25 ms 25 ms 25 ms
Average latency 7.14 ms 7.14 ms 7.14 ms 7.4 ms 6.18 ms
Rotational speed 4200 rev/m 4200 rev/m 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
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 16.6
Mbytes/sec
Buffer size 128KB (read and
write segmented
buffer)
128KB (read and
write segmented
buffer)
128KB (read
and write
segmented
buffer)
128KB (read
and write
segmented
buffer)
128KB (read
and write
segmented
buffer)
Spindle start time 5 sec (typical) 5 sec (typical) 5 sec (typical) 5 sec (typical) 5 sec (typical)
Reliability:
MTBF: Power-
on Hours
300,000 hours 300,000 hours 300,000 hours 300,000 hours 300,000 hours
Unrecoverable
errors
1.0E-13 bits
transfer
1.0E-13 bits
transfer
1.0E-13 bits
transfer
1.0E-13 bits
transfer
1.0E-13 bits
transfer
Configuration:
Sector Size 512 Bytes 512 Bytes 512 Bytes 512 Bytes 512 Bytes
User Cylinders 2,920 3,650 5,160 5,160 5,020
Data Heads 6 6 4 6 10
Disks 3 3 2 3 5