Commands in the initialization input data sets are processed when WebSphere MQ is initialized on queue manager startup. Three types of command can be issued from the initialization input data sets:
These commands must reside in the data set identified by the DDname CSQINP1. They are processed before the restart phase of initialization. They cannot be issued through the console, operations and control panels, or an application program. The responses to these commands are written to the sequential data set that you refer to in the CSQOUT1 statement of the started task procedure.
Sample initialization data set members are supplied with WebSphere MQ for z/OS. They are described in Sample definitions supplied with WebSphere MQ.
You can also use the CSQINP2 initialization data set for the START CHINIT command. If you need a series of other commands to define your distributed queuing environment (for example, starting listeners), WebSphere MQ provides a third initialization input data set, called CSQINPX, that is processed as part of the channel initiator started task procedure.
The MQSC commands contained in the data set are executed at the end of channel initiator initialization, and output is written to the data set specified by the CSQOUTX DD statement. You might use the CSQINPX initialization data set to start listeners for example.
A sample channel initiator initialization data set member is supplied with WebSphere MQ for z/OS. It is described in Sample definitions supplied with WebSphere MQ.
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