Parallel Sysplex, IBM's lumbering mainframe technology, is back from the dead and may finally take off, argues Sean Hallahan. This April marked the fifth birthday of Parallel Sysplex, IBM's maligned, ...

Few people are more aware of virtualization’s long history than Jim Rymarczyk, who joined IBM as a programmer in the 1960s just as the mainframe giant was inventing virtualization. The future of ...

IBM's mainframe clustering architecture. It allows multiple computers to work together as a single system. Supporting data sharing with guaranteed integrity, extensive resource sharing and ...