If the default system parameter module that is supplied with IBM® MQ does not contain the system parameters that you want, you
can create your own system parameter module and customized macros.
About this task
A subset of a z/OS queue manager's properties are
loaded from the queue manager system parameter module when the queue manager starts. The default
system parameter module that is supplied with IBM MQ is
called CSQZPARM. In the system parameter module are three macros:
- CSQ6SYSP, which controls the connection and tracing parameters
- CSQ6LOGP, which controls log initialization
- CSQ6ARVP, which controls archive initialization
If the default system parameter module does not contain the system parameters that you want, you
can create your own system parameter module and customized macros using the supplied JCL sample. You
cannot perform these customizations from IBM MQ Explorer
because IBM MQ Explorer cannot connect to a queue manager that
is not running.
For more information, see Customizing your queue managers in IBM Knowledge Center.
Procedure
-
[OPTION 1] View the system parameters.
When the z/OS queue manager starts, it loads its
system parameter module which sets the queue manager's initial system parameter values. When the
queue manager is running, you can monitor and administer it from IBM MQ Explorer and, therefore, view the queue manager's initial system
parameter values.
-
In the Navigator view, right-click the queue manager, then click the relevant menu item to view
the initial parameter values that you are interested in:
- To view the log archive settings, click
- To view the log settings, click
- To view the connection and tracing settings, click
A dialog opens. In the dialog, the Initial table contains the values of the system parameters that were loaded from the
system parameter module when the queue manager started.
-
[OPTION 2] Override system parameters while the queue manager is running.
While the queue manager is running, you can change and temporarily override certain system
parameter values. You can make these changes from IBM MQ Explorer.
-
In the Navigator view, right-click the queue manager, then click the relevant menu item to view
the initial parameter values that you are interested in:
- To view the log archive settings, click
- To view the log settings, click
- To view the connection and tracing settings, click
A dialog opens. In the dialog, there is a table called Set. If you have already edited the system parameters since the
queue manager started, the Set table contains the new
parameter values.
-
In the dialog, click Properties....
A Properties dialog opens.
-
In the Properties dialog, edit the parameters that you want to override, then click OK to close the Properties dialog.
The changes that you have made are shown in the Set table. The changes are temporary; the next time that the queue manager is
restarted, the changes are lost because the values in the system parameter module are applied again.