Preserve a Version 5.1 gateway when migrating a cell

When you migrate a cell to a later version, any previously configured gateway on any Version 5.1 application server in the cell is replaced with an empty gateway. Therefore you must preserve the Version 5.1 gateway configurations before you migrate the cell.

WebSphere Application Server Version 5.0 is no longer supported, so you should migrate any existing gateways that are running in Version 5.0 application servers to run on application servers at the current level of the product.

Before you choose whether to preserve or migrate the Version 5.1 gateways, you should be aware of the context and restrictions described in Coexistence: Preserve or migrate a Version 5.1 gateway.

To migrate a gateway, see Migrate a Version 5.1 web services gateway configuration.

Because a cell in a later version can contain application servers at different versions, we can continue to use Version 5.1 gateways that are running on Version 5.1 application servers even if you migrate the cell from Version 5.1 or Version 6 to Version 7.0 or later. However when you migrate a cell, any previously configured gateway on any Version 5.1 application server in the cell is replaced with an empty gateway. Therefore preserve your Version 5.1 gateway configurations before you migrate the cell.

To preserve Version 5.1 gateways and application servers when migrating a cell to a later version... For information about how to save and restore the Version 5.1 gateway configurations, see the WAS Version 5.1 topic: Backing up and restoring a gateway configuration.

1. Save the Version 5.1 gateway configurations.

2. Migrate the cell to the later version without also migrating the application servers, by referring to the documentation about migrating deployment managers.

3. Restore the Version 5.1 gateway configurations to the Version 5.1 application servers within the cell on the later version.