MSI 790GX User Guide - Page 96

Sata Raid

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Appendix C SATA RAID SATA RAID The 710 / 750 integrate one SATA host controller separately, and support RAID function for performance and reliability. SATA RAID provides support for RAID 0 (Striping), RAID 1 (Mirroring), RAID 0+1 (Striping & Mirroring) & RAID 5 (striping with parity). RAID 0 greatly improves hard disk I/O performance by concurrently striping data across multiple drives. RAID 1 makes sure data is not lost if a drive f ails as data is simultaneously written to two drives. Drives configured for RAID Striping are said to form a RAID 0 set, while drives configured for RAID Mirroring are said to form a RAID 1 set. RAID 0+1 is implemented as a mirrored array whose segments are RAID 0 arrays. RAID 0+1 has same fault tolerance as mirroring and reduces overhead by striping. It needs at least four drives to form a RAID 0+1. RAID 5 defines techniques for parity data. *Only 750 supports RAID 5. C-1

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C-1
SATA RAID
Appendix C
The 710 / 750 integrate one SATA host controller
separately, and support RAID function for performance
and reliability.
SATA RAID provides support for RAID 0 (Striping), RAID
1 (Mirroring), RAID 0+1 (Striping & Mirroring) & RAID 5
(striping with parity). RAID 0 greatly improves hard disk
I/O performance by concurrently striping data across
multiple drives. RAID 1 makes sure data is not lost if a
drive fails as data is simultaneously written to two
drives. Drives configured for RAID Striping are said to
form a RAID 0 set, while drives configured for RAID
Mirroring are said to form a RAID 1 set. RAID 0+1 is
implemented as a mirrored array whose segments are
RAID 0 arrays. RAID 0+1 has same fault tolerance as
mirroring and reduces overhead by striping. It needs at
least four drives to form a RAID 0+1. RAID 5 defines
techniques for parity data.
*Only 750 supports RAID 5.