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The command set and environment are quite different. Though, I've
noticed commanalities that allow for translations (concepts like on
disk structures, storage, I/O channels, console controls and
programming). A good book that get's passed around our office is
Murcach's OS/390 and z/OS JCL (ISBN: 1-890774-14-6). This will give
you a broad overview of the environment and how to work with JCL on the
system. I've found also found it instructional to load the Turnkey MVS
3.8J on a PC to put "eyeballs" onto certain concepts about a
mainframe's environment (emulating punch card readers, DASD's, and Tape
drives - no ISPF editing though). The turnkey environment also helped
when loading linux onto a hercules emulator system with regards to I/O
channel definition, CPU emulation, et al. <br>
<br>
William<br>
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