NEC POWERMATE PRO2180 - SERVICE 1996, Руководство по обслуживанию

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C-2 Hard Disk Drive Specifications and Jumper Settings
Table Appendix C-1 Hard Disk Drive Specifications
Features 2.1-GB IDE Hard
Disk (ST32140A) 2.5-GB SCSI Hard Disk
(ST32155W)
Dimensions
Height
Length
Width
1.03 in. (25.4 mm)
5.79 in. (146.6 mm)
4.02 in. (102.1 mm)
1.00 in. (25.4 mm)
5.74 in. (146.0 mm)
4.00 in. (102.1 mm)
Weight 1.0 lb (454 gm) 1.5 lb (680 gm)
Performance
Track-to-track seek
Average seek
Maximum seek
2 ms
10 ms
20 ms 2.3 ms
10.4 ms
20.4 ms
Average Latency 5.58 ms 5.54 ms
Rotation Speed 5376 rpm 5411 rpm
Data Transfer Rate
(buffer to disk)
67.7 MB/s max 66.0 MB/s max
Data Transfer Rate
(buffer to host)
16.6 MB/s, PIO Mode
4 40.0 MB/s Synchronous
Start/Stop Cycles 20,000 10,000
Buffer Size 256 KB 512 KB
Interface IDE SCSI
2.1-GB IDE HARD DISK DRIVE JUMPER SETTINGS
The 2.1-GB IDE hard drive has a jumper block used to configure the drive. This block is
located on the side of the drive opposite the IDE and power connectors. The block is
designated as J6 on the drive PCB. A summary of the configuration settings in shown in
Figure Appendix C-1.
Figure Appendix C-1 2.1-GB IDE Hard Disk Jumper Settings
One drive only
Master (default)
Cable Select
Two drives installed
Master
Two drives installed
Slave
Figure not to scale
Remote LED