The new cheetah 15k.5 enterprise disc drive employs innovative perpendicular recording technology to set new standards for storage cost-effectiveness. the cheetah 15k.5 delivers 36 percent higher sequential performance. this enables enterprises to meet their throughput and capacity requirements with fewer drives, significantly reducing total cost of ownership (tco). seagate designed the cheetah 15k.5 for maximum reliability in demanding enterprise applications, including a nonrecoverable error rate that's been improved by a factor of 10. cheetah 15k.5 incorporates such seagate-exclusive features as iraw (idle read after write), enhanced ecc (error correction code) and bms (background media scan) to safeguard data integrity in the most rigorous environments.fifth-generation cheetah 15k is the fastest, highest capacity and most reliable ever; delivers lower tco for a wide variety of enterprise applications. cheetah 15k.5 employs perpendicular recording technology to deliver 146gb capacity with 30 percent faster sequential performance. nonrecoverable error rate has been improved by a factor of 10, safeguarding data integrity and reducing risk exposure during raid rebuilds. cheetah 15k.5 drives employ perpendicular recording to enable systems with an unprecedented blend of storage performance,capacity and reliability. cheetah 15k.5 drives offer lasting value, ensuring systems can keep up with growing performance and capacity needs over a longer period of time.cheetah 15k drives have the highest field-proven reliability of any 3.5-inch drives in the world, and boost system reliability even further due to the need for fewer drives.