Software licensing for i5/OS® is included with the active processors for the Capacity BackUp server and is not required with the use of temporary capacity. AIX® software licensing for permanently active processors is licensed separately. AIX software licensing of inactive processors is typically not required in the event of a disaster. IBM® software licensing is not required on the Capacity BackUp server. Non-IBM software licensing is based on the software tier or conditional use licensing explicitly required by the software provider.