Re: Operational Failover is incredibly complex
It's worse than a mishmash. It'll be set up like a bank. Sure you've got your all-singing, all-dancing modern apps-and-web front end for the masses, but under the hood there will be the same core monolithic mainframe actually doing the real work, substantially unchanged for 30 years. This is translated into modern representations with layers upon layers upon layers of interfaces. Take out any one of those layers and it's anyone's guess what the outcome will be. That's why DR for these systems is particularly tricky.
Biting the hand that feeds IT
