VMware iSCSI NICs changing settings

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http://serverfault.com – I have a small VMware cluster that is exhibiting some strange behavior - the NICs in my iSCSI ports are needing to be switched periodically when my hosts have been down. Why is this occurring? This has been happening since version 4.0 ESX. We are currently on 5.0 ESXi. I'm using the inbuilt iSCSI software initiator utilizing a single vSwitch. Two physical NICs. Two VMKernel ports. Both are configured with the 'override switch failover' option as was outlined in the install manual when I set these systems up - vmnic3 is active, vmnic2 is disabled or visa-versa. This corresponds with my lo (HowTos)