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Table B-2 Design Specifications
MODEL D2246
Unformatted Storage Capacity
Per Unit (MB)
85.03
Per Cylinder (bytes)
122,880
Per Track (bytes)
20,480
Formatted Storage Capacity*
Per Unit (MB)
68.02
Per Cylinder (bytes)
98,304
Per Track (bytes)
16,384
General
Cylinders
692
Data Transfer Rate (MB/second)
1.198
Spindle Rotation (rpm)
3,510
Average Latency Time (ms)
8.55
Single Track Seek Time (ms)
7
Average Seek Time (ms)
25
Maximum Seek Time (ms)
50
Recording Density (bitslinch)
9,040
Track Density (tracks/inch)
720
Recording Disks
4
Data Heads
6
Servo Heads
1
*The capacity is calculated as:
256 bytes x 64 sectors x 692 cylinders x number of data heads
Width
Height
Depth
Weight
Table B-3 Physical Dimensions
8.5 in. (217 mm)
5.5 in. (139 mm)
16.5 in. (420 mm)
28 lbs. (13 kg)
DARD ASSEMBL y*
8.8 in. (224 mm)
5.6 in. (143 mm)
18.5 in. (470 mm)
30 lbs. (14 kg)
*The standard assembly includes a frame bracket.
B-3
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