Appliance Kit › How to upgrade your applications to use the new appliance kit (APK) › Upgrading applications to use your new DHCP-based appliances

Upgrading applications to use your new DHCP-based appliances

There are 2 different options available for upgrading your applications to use your new DHCP-based appliances. These options depend on the number of applications that need to be upgraded and the amount of downtime that can be afforded.

Minimal downtime: one application at a time

1. Change the name of the class for the upgraded singleton so it is different than the original class name.
2. Drag the upgraded singleton into the /user catalog (or another catalog of your choice; we assume /user for the remaining steps).
3. Open the application that needs to be updated with the newly upgraded class.
4. Drag-and-drop the new appliance class over the old instances in your application while holding down the Shift key (this will update the instance to use the new class and preserves all configuration settings).
5. Re-start the application and verify it is operational.
6. Repeat these steps for each application you wish to upgrade.

Downtime is not critical: all applications at the same time

1. Stop all applications that use the appliance that was upgraded in the previous section.
2. Rename the old appliance class: Right-click on the class and choose the rename option in the CA 3Tera AppLogic GUI.
3. Drag the upgraded singleton into the same catalog where the appliance came from originally.
4. Restart all of the applications that were stopped in the first step.