Task 4: Update the z/OS program properties table

Some additional PPT entries are needed for the IBM® MQ queue manager.

• You must perform this task once for each z/OS® system where you want to run IBM MQ.
• If you are using queue-sharing groups, you must ensure that the settings for IBM MQ are identical on each z/OS system in the sysplex.
• You do not need to perform this task when migrating from a previous version.
• You do need to perform the CSQ0DSRV part of this task when you require IBM MQ Advanced Message Security.

A sample containing all the required PPT entries is provided in thlqual.SCSQPROC(CSQ4SCHD). Ensure that the required entries are added to the PPT, which you can find in SYS1.PARMLIB(SCHEDxx).

In z/OS 1.12 and later versions, CSQYASCP is already defined to the operating system with the attributes detailed and no longer needs to be included in a SCHEDxx member of PARMLIB.

The IBM MQ queue manager controls swapping itself. However, if you have a heavily-loaded IBM MQ network and response time is critical, it might be advantageous to make the IBM MQ channel initiator nonswappable, by adding the CSQXJST PPT entry, at the risk of affecting the performance of the rest of your z/OS system.

If you require IBM MQ Advanced Message Security, add the CSQ0DSRV PPT entry.

Issue the z/OS command SET SCH= for these changes to take effect.