Mapping of general log streams

CICS® uses the default log stream names unless you provide a JOURNALMODEL resource definition for the journal or log.

If there is a JOURNALMODEL definition for the log, CICS attempts to connect to the log stream named in the definition.

If you define JOURNALMODEL resource definitions for your system logs, ensure that:

If CICS cannot connect to the log stream named in the JOURNALMODEL definition, it attempts to connect to a log stream, using the default name:

userid.applid.journalname

Before you try to use this default log stream name, ensure that

If the log stream is not available (perhaps it has not been defined to MVS) or the definition is not found (perhaps it has not been installed), CICS attempts to create a log stream using the default name:

LSN_QUALIFIER1.LSN_QUALIFIER2.MODEL

where the qualifier fields are based on the JOURNALMODEL definition streamname attribute, as follows:

Once the log stream has been created, CICS connects to it.

Figure 10 shows a graphical representation of the mapping process for general logs.

Figure 10. How a CICS journal is mapped to its log stream name (LSN). The name is DFHJ02, used here for user journaling and file control autojournaling.
 This diagram shows a graphical representation of the mapping  process for general logs as described above.
[[ Contents Previous Page | Next Page Index ]]