You can upgrade from an IBM® POWER5 or POWER6™ System p® model or hardware feature or IBM POWER™5 or POWER6 System i® model or hardware feature to an IBM POWER6 Power Systems™ server. For certain systems, you can also upgrade the server firmware so that you can use IBM i logical partitions and your system can create and run combinations of IBM i, AIX®, and Linux® logical partitions.