Topology
A
WebSphere Premises Server high
availability topology consists of the following:
- WebSphere Premises Server deployed
in a WebSphere clustered
configuration
- A centralized database
- A centralized WebSphere MQ server
- WebSphere Application Server Network Deployment components,
which are installed on a machine called the cluster controller.
Note: WebSphere Application Server Network Deployment does
not support local operating system security. If you need to enable
security in your environment, use LDAP or the custom user registry.
The following points apply to the sample
configuration diagram pictured below:
- Only two nodes are pictured in this sample, but there can be n number
of nodes in your configuration.
- The two servers with WebSphere Application Server that
are not part of the cluster contain some WebSphere Premises Server components
as well, such as the messaging gateway. The WebSphere Application Server pictured
in the background is in passive standby, while the one in the foreground
is active.