
1-52 Technical Information
Table 1-28 8.4-GB Quantum Fireball IDE Hard Disk Drive Specifications
Feature
Specification
Data Transfer Rate
Buffer to Disk (Mbits/sec)
Buffer to Host (Mbits/sec)
Interleave
Buffer Size
158 (maximum)
33 (maximum)
1:1
128 KB
Power On To Ready (Typical)
15 seconds
Power On To Ready (Maximum)
45 seconds
Spindle Stop Time (Typical)
9 seconds
Spindle Stop Time (Maximum)
15 seconds
Start/Stop Cycles (Minimum)
40,000
Formatted Capacity
Number of Disks
Number of R/W Heads
Data Surfaces
8445 Mbytes
4
8
8
Required voltages
Current (amps, average)
Total Power (watts, average)
Start Up
+5 VDC
+12 VDC
.650
1.65
23.05
Idle Mode
+5 VDC
+12 VDC
.420
.320
5.94
Random Seek
+5 VDC
+12 VDC
.520
.880
13.16
Standby
+5 VDC
+12 VDC
.170
.018
1.07
Temperature
(non-condensing)
Operating: 5
°
to 55
°
C (41
°
to 131
°
F)
Non-operating: -40
°
to 65
°
C (-40
°
to 167
°
F)
RelativeHumidity
(non-condensing)
Operating: 5% to 85%, Maximum Wet Bulb 86
°
F
(30
°
C)
Non-operating: 5% to 95%, Maximum Wet Bulb 104
°
F
(40
°
C)
Altitude
Operating: -198.25 m to 3050 m (-650 to 10,000 ft.)
Non-operating: -198.25 m to 12,200 m (-650 to 40,000 ft.)
MTTF
500,000 hours
Dimensions
Height: 1.0 inches (25.4 mm)
Width: 4.0 inches (101.6 mm)
Depth: 5.74 inches (146.1 mm)