The following is an example of how to create an LACP port-channel made up of two ports that will work with an EMC VNX 5300 SAN.

interface GigabitEthernet1/0/14
 description san-lacp-1
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 2 mode active
end
interface GigabitEthernet1/0/15
 description san-lacp-2
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 2 mode active
end
interface Port-channel2
 description san-lacp
 switchport trunk encapsulation dot1q
 switchport mode trunk
 spanning-tree portfast
end

The channel group mode must be “active”.
After creating the port-channel in the switch and configuring LACP on the SAN, you must “shutdown”  and then “no shutdown”  the port-channel.  This forces the SAN data mover ports to reconnect with the proper LACP values.