Corporate APP
NAS-7450 /7850 support three RAID policies:
RAID 0: Stripe/Span. (2 ~ 8 hard disk drives). It interleaves data across multiple disks for better performance. Safeguard function is not provided in RAID 0.
RAID 1: Mirror. (Multiplication of 2 hard disk drives). It provides 100% duplication of data into paired hard disks. This offers the highest reliability, but doubles the storage cost.
RAID 5: Striped with Rotating Parity (3 ~ 8 hard disk drives). Data is striped across three or more drives. Parity bits are used for fault tolerance.
RAID 6: RAID 6 (striped disks with dual parity) combines four or more disks in a way that protects data against loss of any two disks.
RAID 10: RAID 1+0 (or 10) is a mirrored data set (RAID 1) which is then striped (RAID 0), hence the "1+0" name. A RAID 1+0 array requires a minimum of four drives �V two mirrored drives to hold half of the striped data, plus another two mirrored for the other half of the data. In Linux, MD RAID 10 is a non-nested RAID type like RAID 1 that only requires a minimum of two drives and may give read performance on the level of RAID 0.
