Network Deployment (Distributed operating systems), v8.0 > Establishing high availability > Establishing high availability for Service integration > High availability and workload sharing > Configure high availability and workload sharing of service integration

Create a policy for messaging engines

You create one or more core group policies for service integration to control the behavior of the messaging engine, or engines, in a server cluster. The policies support behavior such as high availability, workload sharing or scalability in a server cluster. Ensure to use the following procedure. As an alternative, you can create a policy by using messaging engine policy assistance when you add a server cluster to a bus. You create messaging engines and their associated policies as part of the procedure, and use predefined messaging engine policy types that support frequently-used cluster configurations. Alternatively, you can use a custom policy type and configure the messaging engine policy as you require, and the relevant core group policies and their match criteria are created automatically.

Continue with the following procedure to create a core group policy for messaging engines if you are familiar with it. Otherwise, it is easier to create a policy by using messaging engine policy assistance when you add a server cluster to a bus.

Decide what type of core group policy create for the configuration you require. For service integration, the following types of core group policy apply:

For further information, see Policies for service integration. A policy is a component of a core group. A core group can have a number of different policies; each policy applies to a particular high availability group and determines the high availability behavior of resources in that group. For service integration, the resources to control are the messaging engines. Typically, you create one policy for each messaging engine in the cluster, unless you want the messaging engines to be managed by external high availability framework.

To create a policy for a messaging engine, use the admin console to complete the following steps.


  1. In the navigation pane, click Servers -> Core groups -> Core group settings -> core_group_name -> [Additional Properties] Policies . A list of currently configured core group policies is displayed.

  2. Click New.

  3. Select one of the following options from the Policies list. Only the following policy types are applicable to service integration:


    A messaging engine cannot fail over in a WAS cluster.

    One of N

    A messaging engine can fail over in a WAS cluster.

    No operation

    A messaging engine is managed by an external high availability framework such as IBM HACMP. This option is for use with an external high availability cluster.

    Do not select any other policy type, because they because they are not supported for the service integration bus component.

  4. Click Next. The policies configuration page is displayed.
  5. Enter a Name that is unique in the scope of the core group.

  6. Click Apply or OK.

  7. Configure the policy. See Configure a core group policy for messaging engines.

  8. Save your changes to the master configuration.

Service integration high availability and workload sharing configurations
Policies for service integration
Messaging engine policy assistance
Add a cluster as a member of a bus
Delete a redundant core group policy
Add a cluster to a bus without using messaging engine policy assistance


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