ASM_PLPA_COMMON

Description:

Looks at the slot usage of the PLPA and Common page data sets. The check generates an exception if the combined usage of both data sets meets or exceeds the warning threshold.

Reason for check:

You should prevent full conditions on the PLPA and Common page data sets.

z/OS® releases the check applies to:

z/OS V1R8 and later.

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(IBMASM,ASM_PLPA_COMMON_USAGE),
        INTERVAL(00:30), 
        PARM('THRESHOLD(80%)'),
        DATE('date_of_the_change')

Debug support:

Verbose support:

Parameters accepted:

Yes, as follows:

When not using dynamic severity: THRESHOLD(value),
When using dynamic severity: THRESHOLD_HIGH(value), THRESHOLD_MED(value), THRESHOLD_LOW(value), THRESHOLD_NONE(value)
Note that the thresholds specified should increase in value as the severity increases, since a higher value indicates a more severe condition (higher usage of the PLPA and COMMON paging data sets), as shown in the following example:
```
PARM('THRESHOLD_HIGH(90%),THRESHOLD_MED(80%), THRESHOLD_LOW(70%)')
```

The variable for the parameters is as follows:

value: An integer, 0-100 indicating the warning threshold percent. It may optionally be followed by %.

Default: THRESHOLD(80%)

You can use synonyms for these parameters, as follows:

Parameter	Synonyms
THRESHOLD_HIGH	THRESHOLD_HI THRESHOLD_H
THRESHOLD_MED	THRESHOLD_M
THRESHOLD_LOW	THRESHOLD_L
THRESHOLD_NONE	THRESHOLD_NO THRESHOLD_N

PARM('THRESHOLD_HIGH(90%),THRESHOLD_MED(80%),THRESHOLD_LOW(70%)')

Reference:

For information on auxiliary storage management initialization, see z/OS MVS Initialization and Tuning Guide .

Messages:

This check issues the following exception messages:

ILRH0111E

See the ILRH 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.