March 2003
Intermediate to advanced
282 pages
9h 13m
English
book
IMS in the Parallel Sysplex Volume I: Reviewing the IMSplex Technology
by Jouko Jantti, Juan Jesœs Iniesta Mart’nez, Knut Kubein, Bill Stillwell, Gary Wicks
Content preview from IMS in the Parallel Sysplex Volume I: Reviewing the IMSplex Technology
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100 IMS in the Parallel Sysplex, Volume I: Reviewing the IMSplex Technology
When a list structure is built, 256 list headers are created. The connector may decide how
many list headers to use, and what the meaning of each is. CQS uses 192 of the available
256.
5.3.3 List headers
List headers are anchor points for CQS or IMS queues. A list header points to the first list
entry in the queue. When a structure is allocated, 192 list headers are created; 71 for CQS
private queues, and 121 for the IMS queues. There are 11 list headers per queue type.
Figure 5-4 shows the details of the different types of queues and their identities, for example,
the ...
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