Manual - Xpress Platforms

Appendix BAMD RAIDThe integrate one SATA host controller separately, andsupport RAID function for performance and reliability.SB950 SATA RAID provides support for RAID 0 (Striping),RAID 1 (Mirroring), RAID 10 (Striping & Mirroring)& RAID 5 (striping with parity). RAID 0 greatly improveshard disk I/O performance by concurrently striping dataacross multiple drives. RAID 1 makes sure data is notlost if a drive fails as data is simultaneously written totwo drives. Drives configured for RAID Striping are saidto form a RAID 0 set, while drives configured for RAIDMirroring are said to form a RAID 1 set. RAID 10 is implementedas a mirrored array whose segments are RAID0 arrays. RAID 10 has same fault tolerance as mirroringand reduces overhead by striping. It needs at least fourdrives to form a RAID 10. RAID 5 defines techniques forparity data.