Planning your high availability solution

Before configuring an IBM® i high-availability solution, proper planning is necessary to ensure all the requirements for the solution have been met.

Each high availability technology has minimum requirements that should be met before configuring a specific solution. In addition to these requirements, it is important to also determine which resources should be made resilient. These resources, such as applications, data, and devices, should be evaluated to determine whether they should be highly available. If they require high availability, it is important to make any necessary changes to the environment prior to configuring a solution for high availability. For example, you might have data that resides in SYSBAS, which should be highly available. Before configuring a solution, you should move that data to an independent disk pool. Applications might also require changes to enable high availability.