CAS4LIJL Documentation

Document ID : KB000110059
Last Modified Date : 22/08/2018
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Issue:
There is no documentation describing the use of program "CAS4LIJL" (referenced in jobstream "INITLDSJ"), which is used to initialize the LDS journal dataset.
Please add a section to the documentation detailing the use of jobstream "INITLDSJ" to initialize the LDS journal dataset.
For program "CAS4LIJL", please include a list of all associated DD names, their function, and for DD name "SYSIN", the control statement(s) that can be specified, including setting ranges, etc.
In addition, please detail the security requirements, if any, for running program "CAS4LIJL".
There is no documentation specifying a minimum or maximum size for the LDS journal dataset.
There is no documentation offering guidelines for how to size the LDS journal dataset. 
Environment:
z/os
Cause:
Missing Top Secret information on the use of program "CAS4LIJL"
Resolution:
As this is a common journal between the ESMs.
The journal is identical to the way the CPF journal works for ACF2.
The following is from the ACF2 manual.
There are no other parms other than those shown.
For the sysin that can be specified. The sysin number must match the space specification.
The NOTES in the sample job explain this.
There is no recommendation for minimum or maximum.
Use a value, maybe like in our example and keep an eye on how the journal is used when you are running the interface.
The journal file wraps back to the top when it gets full.
Deciding what size is best for monitoring will depend on each system.

Sample INITLDSJ Job The LDS journal file is defined in the LDS OPTIONS record in the DATASET field.
The journal file must be created and initialized prior to starting the LDS journal processing.
Use the supplied INITLDSJ job in the CAX1JCL0 library to create the LDS journal file.
The following example creates a journal file called ‘CHICAGO.LDSJRNL’ containing 5000 lines:
//INITJNL EXEC PGM=CAS4LIJL //STEPLIB DD DSN=CAI.CAX1LINK,DISP=SHR
//SYSPRINT DD SYSOUT=* //LDSJRNL DD DSN=CHICAGO.LDSJRNL,
// SPACE=(133,(5000)),UNIT=SYSDA, // DISP=(,CATLG,DELETE),VOL=SER=VOLSER
//SYSIN DD * BLOCKS=5000
*
//