Advanced Topics › Global Data Set Integrity Facility › The Exempt List › Change the Way GDIF Handles Hardware Reserves for a Resource

Change the Way GDIF Handles Hardware Reserves for a Resource

If you want to change the way GDIF handles hardware reserves for a specified resource, then you can specify a value for the RESERVES parameter on a GLOBAL statement. You can use this parameter to override the values you specify for the RESERVES parameter on a QNAME or GDIINIT statement.

Specify one of these values on the GLOBAL statement to indicate how GDIF should handle hardware reserves for this resource:

• RESERVES=CONVERT

  Tells GDIF to eliminate hardware reserves associated with RESERVE requests for this resource.

• RESERVES=KEEP

  Tells GDIF to retain hardware reserves associated with RESERVE requests for this resource. RESERVES=KEEP on a GLOBAL statement can cause deadlocks because GDIF still propagates the ENQs for this resource.

  For example, suppose you specified RESERVES=KEEP on a QNAME statement. To eliminate hardware reserves when the QNAME/RNAME combination SYSIEWLP/SYS1.LINKLIB appears on a RESERVE request, you could specify this statement in the GDIEXMPT member:

  GLOBAL QNAME=SYSIEWLP RNAME=SYS1.LINKLIB RESERVES=CONVERT