1) Do you back up ESXi hosts, or do you just backup the vitual machines running on the hosts?
2) In terms of your corporate diaster recovery plan document, do disaster recovery documented plans typically include technical details per system type, i.e. what do your disaster recovery plans detail for esxi hosts, vcenter etc. To what level?
3) Albeit not on a technical level, I am told often organisations have a 2 site replicated platform, so if one site goes down, the other kicks in and systems wont go down. Do you still need disaster recovery plans in that kind of setup?