Re: Not x86 virtualization
I did not know you could run i5/os (what you are calling iSeries) on a Z system partition. But if mainframe is POWER, I guess that makes sense for consolidation reasons. A top end i5 server now (which shares same hardware as AIX os) is pretty much a mainframe now with the scale it offers. I have been working on AS400/iSeries/i5 servers since 1988 when they hit market to replace the old System 38. The growth of these servers has been amazing over the years.
My current job started with helping them implement ERP on a AS400 back in 1998 to replace LoB software they ran on a Wang (yes a Wang, only time I actually saw one in my career) and on Windows based Paradox software. That first machine in 1997 was 1000 lbs and cost about $100,000. I don't remember exact specs but memory was maybe a few MB, storage was maybe a GB and the CPW (performance measure) was, say, 100. The one we bought in 2003 was $50K, 200 lbs with everything else about doubled. The one we use now, bought 2009, is smallest model they have. 4U rack mounted for about $20K, 4GB memory, 460GB storage, CPW about 4300.
The new one I got quote on is less than $20K, 32GB memory, 849GB storage, CPW 9875, again smallest they make. And people wonder why IBM hardware revenue is down. This is still finest business server in available. And by business, I don't mean Facebook. Think actually making a product and selling it.
This cloud/scale internet business stuff can use cheap x86, whole different ballgame. But as I commented on another article in Dark Reading, still waiting for somebody to tell me story about an IBM mainframe getting pawned that wasn't inside job. My i5 is not going to taken by ransomware, ever.