Defining a z/OS log stream

You must define a z/OS® log stream. You define a z/OS log stream by updating definitions.

• In the GRSTNLxx PARMLIB member, specify every IMS in the Parallel Sysplex® environment as being in the same global resource serialization complex. This allows global serialization of resources in the IMSplex.
• Define log stream structure names and attributes in the CFRM policy for message queues and, if sharing, EMH queues.

  Example: In the example in Defining the CFRM policy, STRUCTURE NAME(MVSLOGQMSG01) defines a log stream structure name for the message queues. Similarly, STRUCTURE NAME(MVSLOGQEMH01) defines a log stream structure for Fast Path EMH queues.

• Install DFSMS and change SMS DATACLAS, STORCLAS, and MGMTCLAS constructs.
• Format the inventory coupled data set and define log streams and structure names.
• Update the COUPLExx PARMLIB member.
• Define the logger inventory data set in SYS1.PARMLIB(COUPLExx).
• Define log stream and coupling facility structure names to the logger inventory coupled data set.