GRS_CONVERT_RESERVES

Description:

Whether RESERVEs are being converted to global ENQs in STAR mode

Reason for check:

Converting RESERVEs to global ENQs can help avoid deadlocks and improve reliability, availability, and serviceability.

z/OS® releases the check applies to:

z/OS V1R4 and later.

User override of IBM values:

The following sample shows the defaults for customizable values for this check. Use this sample to make permanent check customizations in an HZSPRMxx parmlib member used at IBM Health Checker for z/OS startup. If you just want a one-time only update to the check defaults, omit the first line (ADDREPLACE POLICY) and use the UPDATE statement on a MODIFY hzsproc command. Note that using non-POLICY UPDATEs in HZSPRMxx can lead to unexpected results and is therefore not recommended. End of change

ADDREPLACE POLICY[(policyname)] [STATEMENT(name)]
UPDATE 
CHECK(IBMGRS,GRS_CONVERT_RESERVES)                      
SEVERITY(LOW) 
INTERVAL(ONETIME) 
DATE('date_of_the_change')
REASON('YOUR REASON FOR MAKING AN UPDATE.')

Parameters accepted:

Reference:

For more information on GRS Reserve Conversion, see z/OS MVS Planning: Global Resource Serialization.

Messages:

This check issues the following exception messages:

ISGH0307E

See the ISGH messages in z/OS MVS System Messages, Vol 9 (IGF-IWM).

SECLABEL recommended for multilevel security users:

SYSLOW - see z/OS Planning for Multilevel Security and the Common Criteria for information on using SECLABELs.