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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
Figure 93. Format of COMPAT41 journal record
Recordnumber
withinblock
JCRLRN
Lengthofrecord
JCRLL
2
2
222
User-typeID
JCRUTRID
System-typeID
JCRSTRID
X'0000'
'0000'ifCICSjournalrequest.
OtherwisecodespecifiedinJTYPEID
keywordofuserrequest
'0000'ifuserjournalrequest.
Otherwise1-bytefunctionID
followedby1-bytemoduleID
Fixedlength
Figure 94. Format of the system header
732 Customization Guide