RAID Redundant Array of Independent Disks

RAID is a grouping of hard disk drives in a PC or server that is used for fault tolerance or performance.

There are several types of RAID. The most popular are considered RAID 0, which is striping. Striping splits data evenly across multiple drives in order to increase performance. There is no redundancy in RAID 0 and if one drive fails all data is lost. RAID1 1is Mirroring. The same data is written to multiple disks and if one drive fails, another drive can be inserted and recover the data.

Newer motherboards support RAID, but RAID is generally used in the workplace, or in PCs where data backups are extremely important.

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