We split the iSCS nics so Nic #2 was on the EQL network and Nic #1 was on EMC iSCSI VLAN #1. When the OM migration was done we took NIC #2 and moved it to EMC iSCSI VLAN #2.
Can you explain what you mean by "split the iscsi nics" ? Does this mean you removed one of the nics from your mpio config? If so how was that accomplished? I'm in the process of migrating a microsoft envrionment to a new storage array which requires taking one of the dual-nics away from the existing configuration and using it for connecting to the new array. It's unclear to me how to perform this task however.
Thanks for you help.
First try it in a test lab or build a VM that is using s/w initiator. Yes, take one of the nics and put it on the new vlan, re-ip, etc. then connect to the target on the EMC SAN. Since the nic will be on the new network you can connect the iSCSI target to the new SAN and you will still have access to the old san via the original nic.