Connection Analysis situations
The predefined situations in this category monitor the efficiency of MRO and ISC links between regions of a CICSplex and resources of CICS® regions. These resources include storage, files, queues, and enqueues.
- CICSplex_Sympathy_Sickness
- Sympathy sickness occurs when the performance of one CICS region is affected as a result of problems
in an adjoining CICS region.
Use the Connections analysis workspace to examine the status of the connection between CICS and its remote regions. Check that the remote systems are available with connections that are in service.
Formula:
If the value of Transaction_Rate is less than 10 and ((the value of Worst_ISC_Connection_Percent_of_Links_in_Use equals 100 and the value of Worst_ISC_Connection_Number_of_AIDs is greater than 0)or (the value of Worst_MRO_Connection_Percent_of_Links_in_Use is greater than 99 and the value of Worst_MRO_Connection_Number_of_AIDs is greater than 0)) then situation CICSplex_Sympathy_Sickness is true.
- CICSplex_MROPctLink_Warning
- Warning threshold exceeded for MRO connection percent.
If the link usage regularly reaches 100% and there are one or more tasks waiting, the configuration for that connection can need to be altered, with an increase in the number of links defined. Effectively, there is an MRO bottleneck caused by a lack of paths available for work to be scheduled cross-system.
Formula:
If the value of Worst_MRO_Connection_Percent_of_Links_in_Use is greater than 80 and the value of Worst_MRO_Connection_Percent_of_Links_in_Use is less than or equal to 90 then situation CICSplex_MROPctLink_Warning is true.
- CICSplex_MROPctLink_Critical
- If the link usage is regularly reaches 100% and there are one
or more tasks waiting, the configuration for that connection can need
to be altered, with an increase in the number of links defined. Effectively,
there is an MRO bottleneck caused by a lack of paths available for
work to be scheduled cross-system.
Formula:
If the value of Worst_MRO_Connection_Percent_of_Links_in_Use is greater than 90 then situation CICSplex_MROPctLink_Critical is true.
- CICSplex_MROAIDs_Warning
- Warning threshold exceeded for MRO AID count.
If the link usage is regularly reaches 100% and there are one or more tasks waiting, the configuration for that connection can need to be altered, with an increase in the number of links defined. Effectively, there is an MRO bottleneck caused by a lack of paths available for work to be scheduled cross-system. Check that the remote system is available and that the connections are in service.
Formula:
If the value of Worst_MRO_Connection_Number_of_AIDs is greater than 5 and the value of Worst_MRO_Connection_Number_of_AIDs is less than or equal to 10 then situation CICSplex_MROAIDs_Warning is true.
- CICSplex_MROAIDs_Critical
- Critical threshold exceeded for MRO AID count.
If the link usage is regularly hitting 100% and there are one or more tasks waiting, the configuration for that connection can need to be altered, with an increase in the number of links defined. Effectively, there is an MRO bottleneck caused by a lack of paths available for work to be scheduled cross-system. Check that the remote system is available and that the connections are in service.
Formula:
If the value of Worst_MRO_Connection_Number_of_AIDs is greater than 10 then situation CICSplex_MROAIDs_Critical is true.
See also the CICSplex Connection Analysis attribute group.