Power
Network
Storage
Compute
A second prod host will join the R520 soon to add some redundancy and mirror the Virtual SAN.
All VMs are backed up and kept in an encrypted on-site data store for at least 4 weeks. They're duplicated to tape (encrypted) once a month and taken off site. Those are kept for 1 year minimum. Cloud backup storage will never replace tape in my setup.
Services
As far as "public facing" goes, the list is very short:
Though I do run around 30-40 services all up on this setup (not including actual non-prod lab things that are on other servers or various SBCs around the place).
If I had unlimited free electricity and no functioning ears I'd be using my Cisco UCS chassis and Nexus 5K switch/fabric extenders. But it just isn't meant to be (for now, haha).