Switch zoning limitations for IBM XIV systems

Switch zoning has limitations for the system and IBM® XIV® Storage System systems.

Fabric zoning

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 port sharing

Target ports can be shared between the system and other hosts.

Host splitting

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.

Controller splitting

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.