Overview: HP Compaq Hard Drives undergo an intense qualification process that eliminates data integrity problems firmware and O/S incompatibilities and other causes of data corruption or premature failure. HP Compaq Hard Drives are specifically designed and tested for flawless operation in your equipment. Supply your Proliant server a Genuine HP Compaq Hard Drive and you will prevent incompatibilities that can rob your system of performance or cause you to lose valuable data. This Hard Drive is designed for any Ultra320 Ultra3 or Ultra2 capable ProLiant Server ProLiant Storage System AlphaServer or StorageWorks Hot-Plug enclosure.Note: All drives are protected by a Pre-Failure Warranty when used with a HP array controller (SMART or SMART-2) and Insight Manager allowing Hard Drives to be replaced before failure free of charge. In addition all drives are covered by a one to three-year limited on-site warranty or the remaining warranty of the HP CPU in which it is installed (up to three years).