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