2 Only if both are 2 different Clariions and 1 is an initiator and the other a target (for example Mirrorview or SANcopy), but with host access please don't put more than 2 wwpn's in a single zone. Try to keep it 1:1.
All,  Is it advisable to keep 2 or more CX ports in a single zone? As I read, Its not an EMC best practice.  But in terms of recover point implementation, same way of zoning is being recommended. Whats best way of doing it in switches with defzone enabled with all access?   Thanks
Keeping 2 CX ports in the same zone.