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On all IOA environments involved in the Multisystem Upgrade process (the master environment and all slave environments), define system symbols in the operating system, including all system symbols that you defined in the DEFPARML member.
You can define the system symbols in the IEASYMxx parmlib member or you can use the IEASYMU2 program. The following example demonstrates how to define system symbols using the IEASYMU2 program.
Figure 8 Defining system symbols using IEASYMU2
//IEASYMU2 EXEC PGM=IEASYMU2,PARMDD=SYSSYMDD
//SYSSYMDD DD *
IOAS1=SYST
IOAS2=IOA
IOAS3=TEST
/*
To update symbolname, you need UPDATE access to the associated RACF profile, as in the following example:
PERMIT IEASYMUP.symbolname CLASS(FACILITY) ID(userid) ACCESS(UPDATE)
For more information about the IEASYMU2 and how to use it for defining system symbols, refer to the IBM Knowledge Center and review the topics about system symbols (especially "Changing system symbols") in the z/OS MVS Initialization and Tuning Reference.
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