Health management is the process by which the dynamic operations
of WebSphere Extended Deployment monitor and manage servers that might fail,
to preserve an optimal server environment.
Before you begin
Create the environment that you want to monitor. When you create a
health policy, you select members for the policy, so these members must exist
before you create the policy.
About this task
Health management is the ability of the system to take a policy-driven
approach to monitoring the application server environment and to take action
when certain criteria are discovered.
Procedure
- Verify that the health controller is enabled.
The
health controller is the autonomic manager that monitors health conditions.
The health controller is enabled by default and is required for health management.
In
the administrative console, click Operational policies > Autonomic managers
> Health controller. Verify that the health controller is enabled and
configure the other settings for the health controller. For more information
about configuring the health controller, see Enabling and disabling health management
.
- Create health policies. Health policies define the health
conditions that you want to monitor in your environment, and the health actions
to take if these conditions are not met. You can define multiple health policies
to monitor the same set of servers in your cell. For more information about
creating health policies, see Creating health policies
.
Results
The health controller monitors the conditions that you defined for
the health policy members, and takes the defined actions on the members when
the conditions in the health policy breach.
What to do next
If you chose the Supervise reaction mode, you receive recommendations
to improve your health conditions. These recommendations display as runtime
tasks that you can accept, deny, or close. To manage runtime tasks, click Runtime
Operations > Task Management > Runtime Tasks in the administrative console.
If you chose the automatic reaction mode, actions to improve the health of
your environment occur automatically.