Technical Information 1-47
Table 1-25 4.55-GB Quantum Viking SCSI Hard Disk Drive Specifications
Feature
Specification
Data Transfer Rate
Buffer to Disk (MB/second)
Buffer to Host (MB/second)
Interleave
Buffer Size
139 (Burst)
40
1:1
512 KB
Interface
68-pin Wide Ultra SCSI-3
Actuator
Rotary Voice Coil
Areal Density
849 Mbits/in
2
Track Density
6,432 track per inch
Maximum Data Rate from Media
139 Mbyte/second (Burst)
Bytes per Sector
512 (default)
Setup Geometry of Drive
6,144 cylinders x 8 heads x 8,899,737 sectors
Servo Type
Sectored
Maximum Linear Density
140,000 fci
Recording Method
16/17 PR4-ML
Power On To Ready
15 seconds (typical)
30 seconds (max)
Start/Stop Cycles
40,000 (minimum)
Required voltages
Current (amps, average)
Total Power (watts, average)
Start Up
+5 VDC
+12 VDC
.5
1.3
15.6
Idle Mode
+5 VDC
+12 VDC
.47
.41
7.3
Random Seek
+5 VDC
+12 VDC
.54
.85
12.9
Temperature
(non-condensing)
Operating: 5
°
to 55
°
C (41
°
to 131
°
F)
Non-operating: -40
°
to 75
°
C (-40
°
to 167
°
F)
RelativeHumidity
(non-condensing)
Operating: 5% to 85%, maximum wet bulb 78.8
°
F
(26
°
C)
Non-operating: 5% to 95%, maximum wet bulb 104
°
F
(40
°
C)
Altitude
Operating: -305 m to 3050 m (-1000 to 10,000 ft.)
Non-operating: -305 m to 12,200 m (-1000 to 40,000 ft.)
MTTF
800,000 hours