HP StorageWorks XP24000/XP20000 for Compatible Parallel Access Volumes Software User Guide: Including Hyper PAV (T5237-96011, May 2011)

alias devices for any base device in the LCU. If a host computer accesses similarly to the base
devise 2 or 3, I/O requests will be also issued to all alias devices in this LCU automatically.
The base device 4 in this LCU is also able to use all alias devices in this LCU, even though no alias
devices were assigned to it in advance.
8 Overview of HP StorageWorks XP for Compatible Parallel Access Volumes Software