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Description
Active I/O channels
Block transfer I/O channels
Block transfer modules on each I/O
block transfer channel
I/O chassis on each block transfer
I/O channel (I/O chassis in rack list)
2.
Determine a time from the table. Example values have been added.
Active I/O channels
containing one or more
block transfer modules
Number of active I/O channels: 3
Number of active I/O channels containing one or more
block-transfer modules: 2
Time, from table: 68 ms
3.
Compute the scanner times for each block-transfer channel.
Example values have been added.
(CT = Channel Time).
CT=[Time] x [#BT modules] + [#I/O chassis - 1] x 9 ms
(table)
on BT channel
CT1 = [68] x [7] + [5-1] x 9
= [68] x [7] + [4] x 9
Appendix A
Number
Ch1
Ch2
3
2
7
0
5
0
1
1
40
2
3
4
on BT channel
Ch3
Ch4
1
0
2
0
2
3
4
52
54
58
67
68
76
98
99
123
Time (ms)
A 11
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