Aspects of the present invention include a method, system and computer program product for managing time sharing option address space on one computer system for a software program running on another computer system. The method includes a processor creating a time sharing option address space on a first computer, the time sharing option address space on a first computer configured to store data; running a computer program on a second computer; and managing data within the time sharing option address space with respect to the computer program running on a second computer.