The system header is 10 bytes long. Its format is shown in Figure 94.
JCRLL
2-byte length of record.
X'0000'
2-bytes containing X'0000'.
JCRSTRID
2-byte system-type identifier. For a user journal request, this is X'0000'.
Otherwise, it consists of a 1-byte function ID followed by a 1-byte module
ID.
Systemheader
Variablelength
Userprefix Journaldata
Fixedlength
Systemprefix
10
Figure93. Format of COMPAT41 journal record
Recordnumber
withinblock
JCRLRN
Lengthofrecord
JCRLL
22222
User-typeID
JCRUTRID
System-typeID
JCRSTRID
X'0000'
'0000'if CICS journal request.
Otherwisecode specified in JTYPEID
keywordofuser request
'0000'if user journal request.
Otherwise1-bytefunction ID
followedby1-byte module ID
Fixedlength
Figure94. Format of the system header
732 Customization Guide