Using a real mainframe in order to run legacy code is probably the most expensive way to do so I can think of.
Re:Buying an IBM Mainframe
by neverartful on Thursday May 23, 2019 @10:26AM
(#19992088)
Oh? Even when your environment uses z/OS, z/VM, CICS, DB2, and a whole slew of other IBM and 3rd party products? Do you know that all mainframe software is fully supported when run on a mainframe substitute? I have no idea whether it is or isn't.
You're incorrect. The most common one is to run legacy software, and not just banks. Insurance, retail, utilities, financial, manufacturing, etc. Some companies have been around before x86 hit the scene and already had significant investments in their in-house computing infrastructure.