Patent ID: 6795895
Filing Date: 2004-09-21
Classification: G06F

Abstract:
A dual-axis RAID system, comprising:four X-axis ordinal series of six disks and a tape drive, five of said X-axis series disks being configured to store data and parity of the data in RAID fashion forming a RAID 0, RAID 1, or RAID 5 system, one of said X-axis series disks being configured as a segment journal disk; a Y-axis ordinal series of four Y-axis parity disks, each of said Y-axis parity disks being configured to store and retrieve parity data for the disks of each of the X-axis series having the same ordinal as each Y-axis parity disk; a RAID interface communicating with the disks of said X-axis series and the disks of said Y-axis series; an SCI network interface operable to communicate with clients; and a controller operable to receive read and write requests through said SCI network interface from clients, said controller further operable to process the read and write requests, said controller further operable to execute said read and write requests through said RAID interface to the disks of said X-axis series and the disks of said Y-axis series.