Pagepool Summary situations

The predefined situations in this category monitor storage analysis. The description and formula for this situation follow.

Note:
All the attribute names in this group are prefixed with CICSplex_Pagepool. except where stated.
CICSplex_DSAHigh_Warning
Warning threshold exceeded for high DSA usage.

Consider increasing the size of the CICS region and make the DSA larger. Increase the region size only if the Region Overview report shows adequate LSQA to support the change. It is also worth checking the current OSCOR usage. If the DSA size cannot be increased, consider reducing the CICS MAXTASK value.

Formula

If the value of Percent_Used is greater than 70 
and the value of Percent_Used is less than or equal to 90 
and the value of Area equals DSA
then situation CICSplex_DSAHigh_Warning is true.
CICSplex_DSAHigh_Critical
This is the critical threshold exceeded for high DSA usage.

Consider increasing the size of the CICS region and make the DSA larger. Increase the region size only if the Region Overview report shows adequate LSQA to support the change. It is also worth checking the current OSCOR usage. If the DSA size cannot be increased, consider reducing the CICS MAXTASK (MXT) value.

Formula

If the value of Percent_Used is greater than 90 
and the value of Area equals DSA
then situation CICSplex_DSAHigh_Critical is true.
CICSplex_EDSAHigh_Warning
Warning threshold exceeded for high EDSA usage.

Increase EDSALIM in the CICS System Initialization Table. The Storage Analysis report will provide an overview of storage availability with in each constituent EDSA. For task and CICS component storage usage, consult the storage displays offered by OMEGAMON XE for CICS.

Formula

If the value of Percent_Used is greater than 70 
and the value of Percent_Used is less than or equal to 90 
and the value of Area equals EDSA
then situation CICSplex_EDSAHigh_Warning is true.
CICSplex_EDSAHigh_Critical
This is the critical threshold exceeded for high EDSA usage.

Increase EDSALIM in the CICS System Initialization Table. The Storage Analysis report will provide an overview of storage availability with in each constituent EDSA. For task and CICS component storage usage, consult the storage displays offered by OMEGAMON XE for CICS.

Formula

If the value of Percent_Used is greater than 90 
and the value of Area equals EDSA
then situation CICSplex_EDSAHigh_Critical is true.
CICSplex_PagepoolSOS_Critical
This is the critical threshold exceeded for Pagepool details.

The reported pagepool has experienced more than one Short-On-Storage condition. Use the storage displays of OMEGAMON XE for CICS on z/OS to locate tasks using a large amount of DSA. Verify that their storage requests are reasonable. To determine if a given task is hung in a storage control request, go to the Transaction Analysis workspace, and look at the Wait Type field. Consider using the CICS CEMT transaction or the OMEGAMON XE for CICS on z/OS KILL option to purge the offending task.

Formula

If the value of CICSplex_Pagepool_Details.SOS_occurrences is greater than 1
then situation CICSplex_PagepoolSOS_Critical is true.

See also: