Redundant Array of Inexpensive Disks (RAID) is a type of protection available in Teradata. RAID provides Data protection at the disk Drive level. It ensures data is available even when the disk drive had failed.
Th\ere are around 6 levels of RAID ( RAID0 to RAID5) . Teradata supports Two levels of RAID protection
RAID 1 - Mirrored copy of data in other disk
RAID 5 - Parity bit (XOR) based Data protection on each disk array.
One of the major overhead's of RAID is Space consumption
Give Detail Info about RAID and discuss all the its type
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