We are starting to make a disaster recovery plan for our data center. We have a failry small setup using vSphere 4.1 Enterprise with 6 hosts (blades) and about 30 Windows, Linux and Netware vms running on an IBM BladeCenter S. The BladeCenter S has shared storage built into the chassis and we also have an DS3300 iSCSI storage array. In the event that something happens to this building we want to be able to bring our most important vms (~12 of them, the others will be restored from backup but not immediately) up at another location which is connected to this buildling via a 1GB fibre connection. We don't necessarily expect to provide the same level of service, just that our core services are available.
I understand this is a major project that cannot be answered in a forum but I'm not sure where to start, if someone could point me in the right direction or give me some ideas I'd appreciate it.