One of the drivers to moving to the cloud be that public or private is the promised reduced management overhead and cost savings. Part of this comes from how effectively infrastructure can be utilised and so partially idle virtual machines can be consolidated alongside each other to get the most out of that infrastructure. The other factor affecting cost is the cost of the IT team and what occurs to me is that the simple way to measure this is the ratio of IT professionals to the amount of infrastructure being looked after.
For example if you are a helpdesk specialist how many desktops/users do you look after and if you work in the data centre how many servers physical/or virtual are you responsible for?
The mission for Azure is one infrastructure specialist per 4,000 servers, however that’s a Microsoft target and there will also be IT professionals working for customers who will have to do some administration and integration work on them. How much extra work is need is going to depend on what sort of service you have opted for:
However this doesn’t mean the end of the IT professional, but a shift from executing tasks which can be automated and scripted to such areas design work governance risk and compliance (GRC) and change management. The increase in this work as data volumes and system capabilities grow will offset the losses in the routine work many of have to carry out today, and the fact that we simply don’t seem to be getting new people interested in working infrastructure.
So my question is
BTW Simon has a similar survey for desktops on his blog