Playing around with a mainframe OS from the 70s (I'm weird like that), I realized that IBM has that wonderful thing where nearly every message has a code that you can use for lookup. In manuals or online, for example.
If you ever used OS/2 you might have seen that, too.
The problem is, the original handbooks are hard to come by[1], and while another wonderful thing (in some aspects) is that a modern, current mainframe is still compatible with that old code from the 70s, and so you can use their resources, you sometimes encounter error codes where the description is basically just "contact IBM". Most likely because IBM really does not expect you to encounter that error on a mainframe delivered since, say, the Berlin Wall fell.
Even if I wanted to, I doubt IBM wants to sell me a support contract for their 4 decades old last public domain version of their mainframe OS on an emulator.
[1] ... and especially on that old OS the message itself can be cryptically short, likely because even a few bytes still cost serious money in the beginning. You still see that in bootloaders.
If you ever used OS/2 you might have seen that, too.
The problem is, the original handbooks are hard to come by[1], and while another wonderful thing (in some aspects) is that a modern, current mainframe is still compatible with that old code from the 70s, and so you can use their resources, you sometimes encounter error codes where the description is basically just "contact IBM". Most likely because IBM really does not expect you to encounter that error on a mainframe delivered since, say, the Berlin Wall fell.
Even if I wanted to, I doubt IBM wants to sell me a support contract for their 4 decades old last public domain version of their mainframe OS on an emulator.
[1] ... and especially on that old OS the message itself can be cryptically short, likely because even a few bytes still cost serious money in the beginning. You still see that in bootloaders.