"In what one IBM-watcher calls a 'dramatic change' in IBM's
thinking, Big Blue is now starting to push mainframes that run
Linux--and only Linux.
"It was three years ago that IBM started a revolution in its
decades-old mainframe business, when it released a version of Linux
that ran on the mainframe.
"Now, there are signals of another siesmic shift: a growing
trend towards selling mainframes that run Linux and the zVM virtual
machine software, without IBM's traditional zOS mainframe operating