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# Switch between Stand-Alone and Server Cluster configurations

If you upgrade a stand-alone instance of OpenText PPM, and you later determine that a server cluster configuration better meets the needs of your organization, you can switch to a clustered server setup. Conversely, if you have configured a server cluster for a test or development instance and you determine that a stand-alone setup would be adequate for your immediate needs, you can transition to a stand-alone deployment. This section provides instructions for performing both of these transitions.

Note: For information about server clustering, see Server Cluster Configurations (Recommended).

In this topic:

## Switch from Server Cluster to Stand-Alone Configuration

If you plan to migrate data from a Production instance to a Development, Test, or Sandbox instance, and you do not want to migrate all the cluster configurations, you can switch from a server cluster to a stand-alone deployment.

To switch from a server cluster configuration to a stand-alone configuration:

1. Stop all PPM Servers. (For instructions, see Start and stop the PPM Server on a single-server system.)

2. Remove the additional node configuration from the `server.conf` file.
3. Remove the additional node file system from `<PPM_Home>/server`.

4. Run the `kUpdateHtml.sh` script.

5. After the script run is completed, run the `kStart.sh` script to start the PPM Server.

## Switch from Stand-Alone to a Server Cluster Configuration

Note: For information about server clustering, see Server Cluster Configurations (Recommended).

To switch from a stand-alone to a server cluster deployment:

1. Stop the PPM Server. (See Start and stop the PPM Server on a single-server system.)

2. Make sure that the following server cluster-related parameter is in the `server.conf` file (located in the `<PPM_Home>` directory), and that it is uncommented:

   - `APP_SERVER_UIL2_BINDING_PORT`

3. Save and close the `server.conf` file.

4. Complete the PPM Server cluster environment setup as described in Configure a server cluster.

5. Run the `kUpdateHtml.sh` script.

6. After you complete the server cluster setup, follow the steps described in Verifying Successful Cluster Configuration.

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