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.