Obtaining Mainframe Experience w/o a Mainframe?
Nice2Cats asks: "So I'm reading all over about how companies are desperate for people who know how to work mainframes, especially now that IBM is shipping them with Linux. But how -- short of a course with Big Blue or some other exercise in expensive formal education -- can I acquire even the most basic information or experience with big iron? There doesn't seem to be many tutorials or introductions online; what would be nice, but I can't seem to find either, would be a simulator that would run on a PC. All I want to know is if I like enough to be seriously interested."
Hercules was created by Roger Bowler and is maintained by Jay Maynard. Jan Jaeger designed and implemented many of the advanced features of Hercules, including dynamic reconfiguration, integrated console, interpretive execution and z/Architecture support.
"Flyin' in just a sweet place,
Never been known to fail..."
I'vebrought up Hercules at home and it does a good job at the HARDWARE level. the real issue is that of getting an O/S that you CAN run.
Older versions of MVS (ie MVT) are available, as are older versions of VM. However, these run in 370 mode, not in ESA or Z mode.
I'm not sure about what Linux versions would run on this emulator.
It is though still a good means of gaining some familiarity with the environment.
In my city, and I expect in others, the local two year community college teaches extension courses in what we used to call "Data Processing". Basic Tape Monkey and Console operator courses in mainframes and AS400s. JCL, CL, maybe a bit of Cobol, RPG, or some SQL queries. Nothing fancy, but the courses are hands on. These classes would not necessarily be for college credit - perhaps for adult education CEUs. Fees don't seem particularly expensive.
This is obviously dependent on your local CC's resources, interests, and local demand. But check it out.