Switch zoning has limitations for the system and IBM XIV Storage System systems.
To avoid a single point of failure, the system's switch zone must include at least one target port from each IBM XIV Storage System controller.
Target ports can be shared between the system and other hosts.
To avoid the possibility of an interaction between multipathing drivers, a single host cannot be connected to both the system and the IBM XIV Storage System system.
IBM XIV Storage System system LUNs that are mapped to the system cannot be mapped to other hosts. IBM XIV Storage System system LUNs that are not mapped to the system can be mapped to other hosts.