How Will Mainframes Survive In The Cloud Era?
Grazed from LifeHacker. Author: Angus Kidman.
Cloud computing promises us flexible and reliable service delivery based on charging for what we use, but that’s a model which mainframe computing has been using for decades. How will the use of mainframes evolve in the future? The comparison between clouds and mainframes isn’t a new one. Sendmail inventor Eric Allman made the point at Linux.conf.au 2011: “Cloud computing is a return to centralised administration. You are handing the keys back to people in those glass rooms.” But not all the people in glass rooms ever left.
BMC Software’s recent global survey of mainframe users emphasises two key points: mainframes aren’t going anywhere soon, but they’re not generally being used for new tasks. Within ANZ, growing use of mainframes is largely driven by existing applications; 91 per cent of regional respondents to the survey said that this was the main reason for the growth in MIPS (millions of instructions per second, the standard measure of mainframe performance). Key priorities for change include reducing costs and improving disaster recovery. We already know that reducing costs on mainframes is a priority. Beyond that, the big switch has been that the data produced from mainframes is often used to deliver information to consumers accessing (for example) bank accounts via smart phones, rather than simply feeding into corporate systems…

