Hitachi's Universal Storage Platform V is a storage system.
Hitachi offers flash array storage, Unified Storage VM.
HP StorageWorks XP P9000 is a storage appliance.
IBM System Storage DS8000 is a line of storage appliances.
HP StorageWorks XP24000 is a line of storage systems, from Hewlett-Packard.
EMC's Symmetrix VMAX series is a frame-based disk array.
Fujitsu Eternus DX8000 is a disk storage system.
HP StorageWorks XP20000 is a disk storage system, from Hewlett-Packard.
EMC's Symmetrix DMX-4 is a storage array system.