Adding a region to an existing target region scope

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This example describes how to use the Web User Interface (WUI) to increase the number of regions in an existing target scope without disrupting an existing workload. Assume that you have implemented workload balancing in CICSplex PLXPROD1, via workload specification WLSPAY01, and that work requests are being routed among target regions CICSPA01, CICSPA02, and CICSPA03. These target regions all belong to CICS system group CSGTGTS1. Now you want to add a fourth region--CICSPA04--to group CSGTGTS1. Region CICSPA04 has been defined to CICSplex PLXPROD1 and is running.

  1. Add target region CICSPA04 to CICS system group CSGTGTS1.
    1. From the Web User Interface main menu click Administration views-->Topology administration views-->CICS system definitions to open the CICS system definition tabular view.
    2. If the current context is not PLXPROD1, specify PLXPROD1 in the Context field and click Refresh.
    3. Select the entry for CICSPA04, and click Add to CICS system group. The Add toCICS system group screen is displayed.
    4. In the Group which member will join field, enter the name CSGTGTS1 and click Yes.
  2. Update the CICSPlex® SM definition of target region CICSPA04.
    1. From the CICS system definition tabular view select the entry for CICSPA04 and click the Update button.
    2. Scroll down to the Workload manager status field and select YES. Click Yes at the bottom of the screen to confirm the update.

    This change takes effect when the target region CICSPA04 is next started.

When the target region CICSPA04 has been started, you can check that the workload is active by clicking Active workload views-->Target regions in an active workload This opens the Target region in an active workload view showing all target regions (including CICSPA04) to which work requests in this workload can be routed.

Related concepts
Workload management and dynamic routing
Workload requirements
Establishing a workload
Balancing the work in a workload
Separating the work in a workload
Taking affinity relations into consideration
Related tasks
Balancing a workload
Removing a region from a target region scope
Adding a routing region to an active workload
Quiescing a target region in an active workload
Routing a specific transaction to a specific target region
Routing particular transactions from a given user to a specific target region
Honoring a pseudoconversational transaction
Deactivating a workload definition
Updating an active workload definition
Discarding an active transaction from a workload
Updating a workload specification
Using real-time analysis to select a target region for workload balancing
Related reference
WLMAWAOR (Target regions in an active workload)
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