RSM_MAXCADS

Description:

The setting of MAXCADS in IEASYSxx, and the number of in-use common area data spaces. A warning will be issued if the number of common area dataspaces exceeds a predetermined threshold.

Reason for check:

Once the number of in use common area dataspaces reaches the value specified in MAXCADS, no more common area dataspaces can be created. This may adversely affect starting new jobs, or the continued operation of jobs already running. This check will help to ensure that the MAXCADS setting is adequate.

z/OS® releases the check applies to:

z/OS V1R4 and later in z/Architecture® mode only.

User override of IBM® values:

The following shows the default keywords for the check, which you can override 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(IBMRSM,RSM_MAXCADS),
    INTERVAL(00:15),
    SEVERITY(MED),
    PARM('THRESHOLD(80%)'),
    DATE('date_of_the_change')

Parameters accepted:

An integer, 0-100, indicating the warning threshold percent (keyword: THRESHOLD, percent sign optional)

Default: THRESHOLD(80%)

Reference:

For more information, see z/OS MVS Initialization and Tuning Reference.

Messages:

This check issues the following exception messages:

IARH108E

See the IARH messages in z/OS MVS System Messages, Vol 6 (GOS-IEA).

SECLABEL recommended for multilevel security users:

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