CICS® uses the MVS™ system logger for all its logging and journaling requirements.
Using services provided by the MVS system logger, the CICS log manager supports:
- The CICS system log, which is used for:
- Dynamic transaction backout
- Warm and emergency restarts
- Cold starts, but only if the log contains information required for resynchronizing
in-doubt units-of-work
- Forward recovery logs, auto-journals, and user journals.
The MVS system logger is a component of MVS. It provides a programming interface to
access records on a log stream. For information about the MVS system logger, see the following MVS publications:
- z/OS MVS Setting Up a Sysplex for:
- General information about the MVS system logger
- Information about defining and formatting the LOGR couple data set
- Information about how to plan the system logger configuration, plan and
set up a system logger application, and plan for recovery for system logger
applications.
- z/OS MVS Programming: Assembler Services Reference, Volume 1 and z/OS MVS Programming: Assembler Services Reference, Volume 2for the syntax of system logger services
- z/OS MVS Initialization and Tuning Reference for information about the COUPLExx PARMLIB member.
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