You create one or more core group policies for service
integration to control your messaging engine, or engines. The policies
control the high availability or workload sharing behavior of those
messaging engines.
Before you begin
Decide what type of policy you need to create for the configuration
you require. For service integration, the following types of core
group policy apply:
- Static. Use this type of policy for a workload sharing configuration
without high availability. Create one policy for each messaging engine
in the cluster.
- One of N. Use this type of policy for a high availability configuration,
or a workload sharing configuration with high availability. You create
one policy for each messaging engine in the cluster.
- No operation. Use this type of policy when you use an external
high availability framework to manage the messaging engines in the
cluster. You create one policy for all the messaging engines in the
cluster. The configuration might be high availability, or workload
sharing with high availability.
For further information, see
Policies for service integration.
About this task
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 (
HAGroup) and determines
the high availability behavior of resources in that group. For service
integration, the resources that you want 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 administrative console to perform the
following steps:
Procedure
- Open the Policy page by clicking .
- Click New.
- Select one of the following from the Policies list.
- Static
- A messaging engine cannot fail over in a WebSphere® Application Server cluster.
- One of N
- A messaging engine can fail over in a WebSphere Application Server 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.
- Click Next.
- Enter a Name that is unique in the
scope of the core group.
- Click Apply or OK.
- Configure the policy. See Configuring a policy for messaging engines.
- Save your changes to the master configuration.