Recording information necessary for starting CQS

CQS uses the z/OS® system logger to record all information necessary for CQS to recover queue structures and restart. CQS writes log records for each coupling facility list structure pair that it uses to a separate log stream. The log stream is shared among all CQS address spaces that share the queue structure.

The z/OS system logger provides a merged log for all CQS address spaces that are sharing queues on a coupling facility list structure.

For CQS to use a z/OS system log, you must first define the log stream and associated resources to z/OS.

CQS also provides a File Select and Formatting Print utility to print the log records.

For more information on defining the log stream, see z/OS MVS Setting Up a Sysplex.

For more information on the File Select and Formatting Print utility, see IMS Version 15.6 System Utilities.