Advanced Topics › Global Data Set Integrity Facility › How You Eliminate Hardware Reserves

How You Eliminate Hardware Reserves

You need to indicate whether GDIF should eliminate or retain hardware reserves by default when GDIF propagates RESERVE requests as global ENQ requests. You can do this by specifying one of the following values on the RESERVES parameter on the GDIINIT statement:

CONVERT

Tells GDIF to eliminate hardware reserves for managed resources unless you specify otherwise in the QNAME or exempt lists.

KEEP

Tells GDIF to retain hardware reserves for managed resources unless you specify otherwise in the QNAME or exempt lists.

Default: CONVERT

These values have no effect on whether GDIF propagates RESERVE requests to other systems as global ENQ requests. For example, to retain hardware reserves by default, you could specify this GDIINIT statement in the initialization member:

GDIINIT RESERVES=KEEP

Important! The RESERVES value of the GDIINIT statement can be overridden by the RESERVES value of the QNAME statements. The QNAME statements, in turn, can be overridden by the RESERVES value of the exempt-list (GLOBAL statements). When the operator enters an ADDQNAME command, a QNAME statement must be provided (and a RESERVES value is provided, either explicitly or by omission).