XCF_CF_STR_MAXSCM

Description:

Indicate a low severity check exception when the sum of the assigned storage-class memory (SCM) for structures allocated in a coupling facility (CF) exceeds the total SCM configured to the CF. This could be an indicator of a possible over- commitment of SCM by the coupling facility.

Reason for check:

It is recommended that the sum of the storage-class memory eligible to be assigned to coupling facility structures should not exceed the total SCM configuration for the coupling facility.

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 shows keywords you can use to override check values on either a POLICY statement in the HZSPRMxx parmlib member or on a MODIFY command. This statement may be copied and modified to override the check defaults:

UPDATE CHECK(IBMXCF,XCF_CF_STR_MAXSCM)
SEVERITY(LOW) INTERVAL(008:00) DATE(20120322)
REASON('Storage-Class Memory resources eligible for'
       'use by structures should not exceed the' 
       'availability of the resources 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:

IXCH0259E
IXCH0260I
IXCH0927I

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

SECLABEL recommended for MLS users:

SYSLOW