Verifying the CICSplex control settings and saving the updated
SLA definitions
The CICSplex control settings determine the workload management
system your site is using to monitor its SLA compliance and also how
often the OMEGAMON XE for CICS on z/OS agent accumulates the SLA data and send it to
the Tivoli Enterprise Monitoring Server for processing and display by the Tivoli Enterprise Portal. When you have
set the control parameters as appropriate, you are ready to activate
your CICSplex's SLA environment. To set these values and activate
your current SLA definitions, complete these steps:
- If not already selected, select the CICSplex icon within the CICSplex
SLA window's left pane:
.
The right pane changes to show your installation's
current CICSplex Control settings.
- Within the CICSplex Control pane, in the Rules area, select the source of the
workload-management rules you want to use, either z/OS's native workload manager or the workload
manager provided with OMEGAMON XE for CICS on z/OS or both.
- z/OS WLM
- Enables you to monitor your SLA environment using the workload
manager native to z/OS. The z/OS workload manager balances
workloads across all z/OS computing
resources, including CICS® regions,
to prevent bottlenecks.
Notes:
- If you select the z/OS WLM,
the service policies, workloads, and service classes you create using
the CICS SLA view are ignored. OMEGAMON XE for CICS on z/OS instead
uses the rules defined for the z/OS workload
manager.
- If your site chooses the z/OS workload
manager when monitoring its CICS service-level
compliance, this is the only procedure you need complete to activate
it.
- OMEGAMON® WLM
- OMEGAMON XE for CICS on z/OS offers its own service-level analysis based on workload
definitions similar to those provided by the z/OS workload manager. Using the CICS SLA view, you can define your own service policies,
workloads, and service classes and activate a service policy to workspace
on the performance of CICS transactions.
These are the benefits of the OMEGAMON WLM:
- It provides similar function in collecting service level data
when your installation is not running the z/OS workload manager in goal mode.
- It provides service-level data collected by OMEGAMON XE for CICS on z/OS in a manner
similar to the z/OS workload
manager.
The service level analysis capabilities native to OMEGAMON XE for CICS on z/OS help
you ensure SLA compliance without requiring the assistance of the
system programmer who configures and maintains your site's z/OS workload manager, nor does
it require that the z/OS workload
manager even be active. The OMEGAMON workload
manager ensures CICS SLA compliance
independent of the z/OS workload
manager and its WLM definitions.
Unlike the z/OS workload manager, the native OMEGAMON workload manager does
not perform workload balancing. These are the other differences:
- The OMEGAMON workload
manager does not support velocity goal definitions. Velocity goals
do not apply to CICS transactions.
- The OMEGAMON workload
manager does not support definition of different periods.
- Auto
- Provides service level analysis using first the z/OS and then the native OMEGAMON workload managers. OMEGAMON XE for CICS on z/OS's
workload summarizer component ensures it can communicate with the z/OS WLM and get a copy of its
service classes and goals. If for any LPAR the z/OS definitions cannot be obtained, OMEGAMON XE for CICS on z/OS uses
the OMEGAMON service classes
and goals.
- In the Collection Interval area, set the collection interval from the list. These are the values: 1 minute,
5 minutes, 15 minutes, 30 minutes and 1 hour.
This parameter determines how often SLA data is summarized and made available for historical data collection.
If you migrate to this release and have a collection interval specified that differs from what is now acceptable, for example, 20 minutes,
this value is ignored by the monitoring agent and the default value of 15 minutes is used.
- Click Save.
Your updated SLA objects and
monitoring settings are written to the Tivoli Enterprise Portal Server, and the monitoring
settings are then passed to the Tivoli Enterprise Monitoring Server. The OMEGAMON XE for CICS on z/OS monitoring
agent picks them up within the next 60 seconds.
After you have set the CICSplex SLA monitoring values and activated
them, you are ready to close the CICS SLA
view and return to the Tivoli Enterprise Portal Navigator Physical view; see Returning to the Navigator Physical view.
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