Today, I'll talk about the *aaS misconception - a pet hate of mine. The figure below shows the evolution of infrastructure through different stages. [The stages are outlined in the previous post]
- your data centre is full of racks or containers each with volumes of highly commoditised servers
- you've stripped out almost all physical redundancy because frankly it's too expensive and only exists because of legacy architectural principles due to the high MTTR for replacement of equipment
- you're working on the principle of volume operations and provision of standardised "good enough" components with defined sizes of virtual servers
- the environment is heavily automated
- you're working hard to drive even greater standardisation and cost efficiencies
- you don't know where applications are running in your data centre and you don't care.
- you don't care if a single server dies
- operating not on the basis of servers but of racks or containers i.e. when enough of a rack is dead you pull it out and replace it with a new one
- your TCO (incl hardware/software/people/power/building ...) for providing a standard virtual server is probably somewhere between $200 - $400 per annum and you're trying to make it less.