Advanced Topics › Global Data Set Integrity Facility › The Exempt List › How You Create an Exempt List

How You Create an Exempt List

If you want to propagate ENQ and RESERVE requests for only some of the resources that are requested through the same QNAME, or if you want to handle hardware reserves for some of these resources differently, then you can create an exempt list. You need to specify the name of this member on the EXEMPT parameter on the GDIINIT statement.

By default, GDIF uses the member GDIEXMPT of the CBTDPARM data set, which contains an exempt list. GDIF uses the exempt list only when one of the following conditions exists:

• GDIF=YES and EXEMPT=YES were specified on a QNAME statement.
• The default values GDIF=YES and EXEMPT=YES are being used for QNAME SYSDSN.
• GDIF is running in ALLSYSTEMS mode, and GDIF dynamically adds a QNAME statement to the QNAME list.

If you do not want to exempt anything or create an exempt list, then specify the statement GDIINIT EXEMPT=NONE.

When coding exempt list statements, keep the following in mind:

• Each exempt list statement begins with a statement name, such as DEFAULT, and contains additional parameters.
• You can specify parameters in any order and use non-ambiguous truncations for parameters.
• You can specify a QNAME or an RNAME in either character or hexadecimal format. If you use character format and the QNAME or RNAME contains embedded blanks, you need to enclose that QNAME or RNAME in single quotation marks.
• All standard rules on CA MIM syntax, commenting, and continuation apply.

  Note: For more information, see the Statement and Command Reference Guide.