HP XP
The HP Storageworks XP is an enterprise storage disk array sold by Hewlett-Packard using Hitachi hardware and adding their own software to it. It is similar to the Hitachi Lightning and Sun StorEdge 9900 and targeted towards enabling large scale consolidation, large database, Oracle, SAP, Exchange, and online transaction processing (OLTP) environments.
Read more about HP XP: The P9000 XP Disk Array Family