As a general rule, if a work task lands on your desk that involves working with a IBM/Oracle/SAP product, preemptively apologize to those regularly around you for your miserable attitude in the near future.
Despite this, there was still a semi-major outage every few months that required even more complex failover systems surrounding it (message queues etc.) to deal with the downtime. I was with the company for only a few months but it was long enough for this to occur. Does make me wonder what the company was paying all this money (hardware, software and DBAs) for if the system was still expected to fail regularly.