A simple setup to build a private or public cloud.
A cloud at the IaaS layer is simply a cluster of hypervisors with some added storage infrastructure and software to orchestrate everything. In this presentation we show some straightfoward DELL hardware that could be purchased to build a single rack as the basic for a private or public cloud. It totals $100k and coupled with open source software: cloudstack, ceph, glusterfs, nfs etc is the basis for your cloud.
You will get a AWS compatible cloud in no-time and with limited acquisition cost.