IBM SC34-6814-04 - Manual (Page 759)

Note:
1. Records created by automatic journaling and automatic logging are
identified by values of X'20' (FIDAJRN) and X'40' (FIDALOG)
respectively, added to the “base” value of the function identifier.
2. A File Control write-delete record created by the forward recovery
process (where the write-delete is done) has a function identifier of X'86'
(FIDFCWD). However, if the record is created by the autojournal process
it has a function identifier of X'A2', made up of X'82' (write-update or
FIDFCWU) plus X'20' (FIDAJRN).
Identifying records for the start of tasks and UOWs
You can identify records written to mark the start of tasks by examining the value of
the system prefix field JCSPF1. If the JCSPSOTK bit is set, the record has been
written at the start of the task.
If the JCSPLSTK bit is set in field JCSPF1, then the record has been written at the
start of the UOW.
Format of journal records written to SMF
This section describes the format of journaling records that are written to an SMF
data set. You need this information if you write your own program to analyze the
data. The three components of the journaling record are an SMF block header, a
CICS product section, and a CICS data section. The layout of an MVS SMF log,
showing log blocks and CICS sections, is in Figure 99 on page 738.
***********************************************************************
* *
M O D U L E I D E N T I F I E R S * *
***********************************************************************
*
*
MODIDTC EQU X’10’ ...TERMINAL CONTROL
MODIDFC EQU X’11’ ...FILE CONTROL
MODIDJC EQU X’45’ ...JOURNAL CONTROL
MODIDFEP EQU X’50’ ...FEPI
* *
***********************************************************************
Figure 98. Journal module identifiers
Chapter 27. CICS logging and journaling 737