As Red Hat's CEO for the past 12 years moves to take on the role of IBM president, a 19-year Red Hat veteran is promoted to president and CEO of the open source company.

It's been nearly nine months since the marriage between IBM and Red Hat was finalized. We decided to check in and see how the newlyweds are getting along.

“We like our hand, and we’ve already done better than most people actually give us credit for.”

By basing all of its FlashSystem flash storage solutions on a common storage platform, IBM is enabling organizations of all types to standardize and simplify storage.

It was widely expected that Red Hat's Jim Whitehurst would be Ginni Rometty's successor. Instead, the job is going to Arvind Krishna -- and that's probably a good thing.

Restoring IBM even part way back to its glory days will require a radical transformation. Analysts say Krishna is up for the task.

Krishna, 57, was the mastermind behind the Red Hat deal.

Thanks to its acquisition of Red Hat, IBM's fourth-quarter cloud revenue was its highest ever.

The service is aimed at legacy enterprise workloads. Google is the second major cloud provider to offer the option besides IBM.

IBM draws on its own expertise, enlists subsidiary Red Hat, customer Bank of America to build what it says will be "the world's first financial services-ready public cloud."