EMC Symmetrix DMX-3 Product Guide
11
Title Page
1 Symmetrix DMX-3 nine-bay configuration................................................. 27
2 Symmetrix DMX-3 five-bay configuration.................................................. 28
3 Symmetrix DMX-3 two-bay configuration.................................................. 28
4 Enginuity and the storage platform relationships...................................... 29
5 DMX-3 Silencer................................................................................................ 41
6 Symmetrix DMX-3 system bay (interior view, front and rear)................. 47
7 Symmetrix DMX-3 storage bay (interior view, front and rear)................ 49
8 Symmetrix DMX-3 block diagram................................................................ 54
9 Symmetrix DMX-3 message fabric ............................................................... 56
10 Symmetrix DMX-3 card cage configurations (front).................................. 57
11 Symmetrix DMX-3 card cage configurations (rear) ................................... 58
12 Track format for 3390 DASD ......................................................................... 73
13 Global memory director to channel and disk director matrix.................. 84
14 Symmetrix DMX-3 system bay and storage bay to
customer PDU power cabling ....................................................................... 88
15 Communication to directors.......................................................................... 90
16 XCM environmental control functionality .................................................. 91
17 FICON channel attachments.......................................................................... 93
18 ESCON channel attachments......................................................................... 96
19 Host cache use ............................................................................................... 102
20 Symmetrix global memory management and data flow......................... 103
21 I/O response time (mainframe environment) .......................................... 105
22 I/O response time (open systems environment)...................................... 106
23 Symmetrix I/O operations........................................................................... 107
24 Read operations............................................................................................. 108
25 Read hit........................................................................................................... 108
26 Read miss........................................................................................................ 109
27 Write operations............................................................................................ 110
28 Fast write ........................................................................................................ 111
29 Delayed fast write ......................................................................................... 111
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