Dynamic operations monitor the middleware server environment and
can make recommendations or changes based on the data that is observed. To prepare a hosting environment for dynamic operations,
you must first configure your environment by creating node groups, the on
demand router, application servers, and dynamic clusters.
Before you begin
. Complete the following prerequisite tasks:
About this task
To set up the dynamic operations environment you must create node groups, on demand routers, servers and dynamic
clusters. You can then deploy your applications and define service policies.
The autonomic managers work with these elements to maximize the performance
of your environment.
Procedure
- Create node groups. A node group
contains nodes that have similar capabilities. Use node groups to create a
resource pool of similar functions that can be shared or used for failover
support. Create a node group for your dynamic cluster.
- Creating ODRs
The on demand
router is a proxy server that can route work to servers.
Avoid trouble: The ODR cannot run on a node
that is in a node group that dynamic clusters use.
gotcha
- Creating dynamic clusters
. When in automatic mode, WebSphere® Extended Deployment can automatically control the
size and placement of dynamic clusters on the nodes. In supervised mode, the
administrator can review information and suggested actions that are provided
by WebSphere Extended Deployment in the form of runtime
tasks.
- Optional: Defining e-mail notification
If your dynamic clusters are running in supervised mode, you receive
notifications of runtime tasks that are proposed by the system for changes
to the configuration or runtime. To view and act upon these tasks in the administrative
console, click Runtime operations > Task management > Runtime tasks.
You can also configure e-mail notifications to send to specified users when
runtime tasks occur.
Results
The on demand router can route requests to applications that are deployed
on your servers and dynamic clusters according to your defined service policies,
work classes, and routing policies.
What to do next
After your environment is prepared for dynamic
operations, you can deploy an enterprise application with defined service
levels.