I thought this was why we moved away from mainframe computing to general purpose hardware...now the best practice is to go the opposite direction, this time we

I thought this was why we moved away from mainframe computing to general purpose hardware...now the best practice is to go the opposite direction, this time we are calling shared compute resources “cloud.” Some cloud providers will be better than others. AWS is still very expensive for I/O intensive workloads. The tendency to revert to mainframe area commitments because a vendor provides a short term discount without factoring in true cost required to maintain the same QoS provided by on-prem is common for executives. A new layer of abstraction is a major benefit of the cloud.