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It 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
by binarymax 9y ago
It 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 9y 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 9y 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 9y 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?