I just tried turning on Fault Tolerance on one of my virtual machines. It's a single processor, 6gb ram. We're running ESXi 4.1 with 2 hosts.
I get this error:
Insufficient resources to satisfy configured failover level for HA.
Anyone know why? It's the first machine I've attempted to set FT on.
you'll have to do this by logging into the ESX(i) host that the guest is running on. Also, if running vCenter as a VM the requirements are to run it with 2vCPU's.
Plus, I woldn't worry to much about FT on your vCenter VM, just take care of your DB.
Technically, you can't FT protect a vCenter server as, per software requirements, vCenter requires 2 CPUs. FT will only protect uniprocessor VMs.