Back a the IBM zSummit, James also had the chance to talk with IBM's John Shedletsky on a wide range of contemporary mainframe topics, primarily, about using the multi-hosting (to put it in "distributed" terms) abilities that mainframes to bring to drive consolidation benefits. The interesting angles here are that John and James get detailed into much of the "mainframes have been doing it for years" talk that's been going around with the rise of virtualization.

John does a good job of explaining how mainframes have been built, for decades, to be fault-tolerate, scale-up environments. Along they way, he takes the chance to point out similarities to recent efforts like "shipping container computing" and other modern efforts to replicate mainframe functionality.