Gb Quantum Fireball St Hard Disk Drive Specifications - NEC PowerMate Enterprise Manual

1-40 Technical Information
Table 1-24 6.4-GB Quantum Fireball ST Hard Disk Drive Specifications
Feature
Hard Disk Drive
Physical Configuration
Formatted Capacity
Nominal Rotational Speed
Number of Disks
Number of R/W Heads
Data Organization
Sectors per Track
Recording
Performance
Buffer Size
Power
Temperature (non-condensing)
Humidity (non-condensing)
Altitude
Dimensions
Specification
6.4-GB Quantum Fireball ST
6448
5,400 rpm
4
8
Zones per surface: 15
Tracks per surface: 7,066
Total tracks: 56,528
Inside zone: 154
Outside zone: 277
Total user sectors: 12,594,960
Bytes per sector: 512
Number of tracks per cylinder: 8
Recording technology: Multiple Zone
Maximum linear density: 168,650 fci
Encoding method: 16/17 PRML
Interleave: 1:1
Track density: 7,777 tpi
Maximum effective areal density: 1230 Mbits/in
Seek times
Read-on-arrival: 10.0 ms typical; 12.0 ms max.
Track-to-track: 2.0 ms typical
Average write: 11.0 ms typical; 13.0 ms max.
Full stroke: 20.0 ms typical; 24.0 ms max.
Data transfer rate
Disk to read buffer: 78 Mb/sec. min.; 132 Mb/sec. max.
Read buffer to IDE bus (PIO Mode with IORDY):
16.7 MB/sec. max.
Read buffer to IDE bus (Ultra ATA Mode):
33 Mb/sec. max.
128 KB
+5V +/-5%; 100 mV peak-to-peak allowable ripple/noise
12V +/-10%; 250 mV peak-to-peak allowable ripple/noise
Operating: 5 to 55 C (41 to 131 F)
Non-operating: -40 to 65 C (-40 to 149 F)
Operating: 5% to 85% rh, 30 C (86 F)
Non-operating: 5% to 95% rh, 40 C (104 F)
Operating: -200 m to 3,000 m (-650 to 10,000 ft.)
Non-operating: -200 m to 12,000 m (-650 to 40,000 ft.)
Height: 1.0 inches (25.4 mm)
Width: 4.0 inches (101.6 mm)
Depth: 5.75 inches (146.1 mm)
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