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This doesn't help if part of your goal is to have a system not written in COBOL. Emulating the older hardware and OS gives you an even more complex system that'
by dpark 10y ago
This doesn't help if part of your goal is to have a system not written in COBOL. Emulating the older hardware and OS gives you an even more complex system that's harder to hire people to work on.
- binarymax 10y agoIt helps for the first stage - getting the platform onto a more sustainable environment. Once the interface exists and has full coverage, parts of the backend can begin migration without a doomed-to-fail 'big bang' rewrite.
- dpark 10y agoDoes it really help? What does it cost to build a trustworthy emulator for an ancient system that you don't own the source for? What would it cost to just migrate your legacy applications to a newer mainframe that IBM supports?
- binarymax 10y agoI wasnt suggesting writing an emulator from scratch. I was suggesting emulating the mainframe. Here is what we, specifically, were looking at: https://en.wikipedia.org/wiki/Hercules_%28emulator%29 https://en.wikipedia.org/wiki/Hercules_%28emulator%29
- dpark 10y agoDon't you then need to pay IBM for the OS anyway? Will they license the OS for this use? Or did your system actually include the OS source?