I have a tough decision coming up and need better weather forecasting to know the right answer. The Washington Post "Weather Gang", who I really like for their well thought out predictions, just came out with the following headline: "History shows a strong El Niño may mean huge snow for D.C. this winter or almost none". Wow, that really clears it up!
I could ask IBM's Deep Thunder what the forecast is for this afternoon, but it's not designed for long range predictions. So I'm on my own - do I buy the snowblower or small tractor with a plow - or just hope for the best? I'd hate to get a nasty surprise come the middle of January.
We all got a very pleasant surprise from IBM this week. The IBM mainframe has been around since 1964 (and thanks to TJ Watson for "literally betting the company" on the development of that gem). The big surprise is that for the first time IBM came out with a top of the line mainfrrame that is not running MVS as the primary operating system (yes, I know they call it z/OS these days, but isn't it really MVS release 20.something?). We've embraced Linux whole hog with our IBM LinuxONE™ platform. Now the customer has a tough choice - do I run Linux in LPARs, on z/VM, or KVM? My opinion - run it on z/VM, for the powerful tools it gives you to work with Linux guests. Now do I run with FB or ECKD DASD? As my colleague Richard Lewis so eloquently puts it, "In the case of z/VM all ECKD DASD devices that have been made available to the LPAR via the IOCP are automatically detected and available for use. Any operating system including the control program of z/VM does not need to do anything except start an I/O channel program in order to use the device. There is no need for path management or anything like that as the z System I/O subsystem takes care of all that." Richard did a great demo of that for one of my customers - see your local IBM rep to get Richard to show it to you as well.
OK, so I don't know what to buy, if anything, to keep my driveway clear during the coming winter, but as for folks who want to run a lot of Linux guests very efficiently - it's IBM LinuxONE with z/VM.