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Using Hot Spare Disk Drives for Performance Enhancement in a RAID System

IP.com Disclosure Number: IPCOM000019208D
Publication Date: 2003-Sep-04

Publishing Venue

The IP.com Prior Art Database


The present invention is an apparatus for using hot spare disk drives for performance enhancement in a RAID system, including an active hot spare, a RAID controller, a plethora of hard disk drives, a data communications link, a primary volume, and a volume mirror. The method of the present invention includes the steps of assigning a hot spare as an active spare, building an active spare, detecting a hard disk drive failure, unassigning the active spare, and reassigning the hot spare to hard disk drive rebuild status.