XCF_CF_STR_MAXSPACE

Description:

Indicate a lowSEVERITY check exception when the sum of the maximum structure sizes and estimated augmented space values plus the total dump space exceeds the total space (TS) for the coupling facility (CF). This is an indicator of an "over commitment" of real storage by the CF.

Reason for check:

It is recommended that the sum of the storage resources allocated from CF real storage frames and eligible to be assigned to structures should not exceed the actual availability of the resources to the coupling facility at any time.

z/OS® releases the check applies to:

z/OS V2R1 and later, or z/OS V1R13 with PTF for APAR OA40747 applied.

Parameters accepted:

None.

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(IBMXCF,XCF_CF_STR_MAXSPACE)            
SEVERITY(LOW) INTERVAL(008:00) DATE(20120322)
Constant('CF real storage eligible for use by
          structures should not exceed the   
          total space available to the CF')  
VERBOSE(YES)

Reference:

For more information, see z/OS MVS Setting Up a Sysplex.

Messages:

This check issues the following exception messages:

IXCH0261E
IXCH0262I
IXCH0928I

See the IXCH messages in z/OS MVS System Messages, Vol 10 (IXC-IZP).

SECLABEL recommended for MLS users:

SYSLOW