The Only Service Providers Metric That Matters: M.P.F.U.

When thinking about live migrations, changing stuff around that could affect anyone who uses your services etc. there is only one term you need to be the aware of - the MPFU, or the Mean Potential for Fuck Up.

It's a way of measuring your safe level of risk. The more higher risk procedures you undertake, the higher the MPFU goes. Then to lower it you need to partake in lower risk procedures.