# Enabling and Disabling Failover for Application Module Instances

When you are using application module pooling, you can provide failover support. The default is enabled.

#### To disable failover support:

When you start the business logic tier's Java VM, include the following directive on the command line:

    -Djbo.dofailover=false

A value of true enables failover.

Alternatively, you can enter a line in the jboserver.properties file, which is stored in \lib\jbomt.zip. During deployment, you need to include the file.

    jbo.dofailover=false

#### To set Java VM parameters through project properties:

1. In the Workspace view of the Navigator, right-click a business component project and choose Properties.

2. In the Run/Debug panel, type the parameters in the Java VM Parameters field.

3. Click OK.

   The values are added to the jboserver.properties file, which is stored in \lib\jbomt.zip.

Related topics
Pooling Application Modules
About Application Module Pooling
About Application Module Pooling Classes