Here is are setup In one cluster we have 4 IBM Flex blades and 4 new Cisco UCS blades. EVC is enabled. The host running on the UCS's are boot from SAN. As a test today we pulled dropped both sides of the network fabric to simulate a host failure. vCenter tried to move the running VM to another random host but failed. Now I have noticed that I can vmotion between Flex but not from Flex to UCS. I can only do it if the VM if off. I believe this has to do with difference in the CPU's even though UCS is enabled. Also the VM's in question have extremely high reservation which the UCS are the only who do not through resource errors when try to move the VM's.
1) With boot from SAN. IF both sides of the Network fail would the VM keep running. I believe the default isolation response it to leave powered on.
2) When HA selects a host to failover to how does it select the host? Least utilized?