Checking keyword activation and SYSVAR substitution (Option 1.3)

Option 1.3

Option 1.3 enables you to check the following:

  • Whether an LST parameter keyword is active in the subsystem used
  • Whether SYSVAR (static system symbol) substitution is active
  • How a static system symbol has been or would be substituted if used in a specified value

All three checks are performed in one action.

Static system symbols

Static system symbols are used to represent fixed values such as system names and sysplex names. System-defined static system symbols are, for example, &SYSCLONE, &SYSNAME, &SYSPLEX and &SYSR1.

To enable SYSVAR support, the following LST parameter must be defined in member B01LSTxx in the BETA.PARMLIB:

SYSVAR_SUPPORT = YES

When SYSVAR support is enabled, static system variables are replaced with their substitution values defined for the system. Static system symbols and their substitution text are defined, for example, in member IEASYMxx in the SYS1.PARMLIB. The substitution text is defined at system initialization and remains fixed for the life of an IPL.

For more information on SYSVAR substitution support, see the BSA Installation and System Guide. For more information on using and coding system symbols, see chapter 2 of the IBM publication MVS Initialization and Tuning Reference.

Note

  • It is not possible to enter 1.3 directly in the "Service Manager Selection Menu". The "Display/Change Started Task Parameters" menu must be opened as an intermediate step.
  • You can use option 4.S to display the static system symbols defined in the system.

Procedure

  1. To carry out a check, do the following:

    In the "Service Manager Selection Menu" enter 1 for option "PARM –Display/Change Started Task Parameters" and then 3 for option "SYSVAR – Check SYSVAR Substitutions". The "SYSVAR Substuitution" panel is called:

    PEB4CHKS ----------------------------------------------------------------------
    Command ===> __________________________________________________________________

    SYSVAR Substitution Subsys-ID - S93P
    Sysname - BETA


    LST Parameter Keyword :

    Keyword ===> ................................


    LST Parameter Value :

    Value ===> ............................................................







    Press the END key to return to the previous menu.

  2. Enter the following in this panel:
    • The name of the keyword you want to check, for example, B93_COMMENT
    • The value to be assigned to this keyword, for example:

      BETA 93 V7R1 ON &SYSNAME IS NOW ACTIVE

    Note: You must specify values in both fields of this panel.

Result panel

PEB4SYSV --------------------------------------------------- No SYSVAR support
 Command ===> __________________________________________________________________

 SYSVAR Substitution Subsys-ID - S93P
 Sysname - BETA


 Result of Status Check for LST Parameter Keyword :

 Keyword : B93_COMMENT
 Status : **ACTIVE**

 Result of Substitution Check for LST Parameter Value :

 Value : BETA 93 V7R1 ON &SYSNAME IS NOW ACTIVE

 Substitution : BETA 93 V7R1 ON BETA IS NOW ACTIVE





 Press the ENTER key to return to the previous menu.

The result panel displays the result of the check:

  • The LST parameter keyword is active in the subsystem used:
...
 Keyword : B93_COMMENT
 Status : **ACTIVE**
...
  • SYSVAR (static system symbol) substitution is not active:
PEB4SYSV --------------------------------------------------- No SYSVAR support
 Command ===> __________________________________________________________________
 ...
  • The static system symbol would be substituted in the specified value as follows if SYSVAR substitution was activated:
...
 Result of Substitution Check for LST Parameter Value :

 Value : BETA 93 V7R1 ON &SYSNAME IS NOW ACTIVE

 Substitution : BETA 93 V7R1 ON BETA IS NOW ACTIVE
...