The end of service date for IBM V6R1 is September 30, 2015 (please see software withdrawal announcement below)
After that date your operating system will need to be upgraded or you will have to purchase an extended support contract.
A third alternative is to rent a hosted partition from First Option. First Option offers dedicated and shared environments with service level agreements that fit your business need and allow you to focus on your business not your IT environment. (For More Info)
Contact us at sales@localhost for a free quote or click on the free IT assessment link below.