IBM SC33-1683-02 - Manual (Page 680)

Format of journal record
Each CICS journal record comprises a system header, system prefix, user prefix,
and journaled data. The format of a journal record is shown in Figure 75.
The system header is 10 bytes long. Its format is shown in Figure 76.
System header
Variable length
User prefix Journal data
Fixed length
System prefix
10
Figure 75. Format of COMPAT41 journal record
Record number
within block
JCRLRN
Length of record
JCRLL
2 2 2 2 2
User-type ID
JCRUTRID
System-type ID
JCRSTRID
X'0000'
'0000' if CICS journal request.
Otherwise code specified in JTYPEID
keyword of user request
'0000' if user journal request.
Otherwise 1-byte function ID
followed by 1-byte module ID
Fixed length
Figure 76. Format of the system header
journaling
648 CICS TS for OS/390: CICS Customization Guide