How to add a second Clariion array?

I need to add a second clariion array to my NS80G. The current array array, array1, is serving up 243 LUNs with host id 0-243. How do I go about numbering the luns on my second array, array2? Can I start the host lun id at 0 since the Celerra already knows what it's control LUNs are?