RAID at Computer Glossary

What is it? RAID (redundant array of independent disks) is a way of storing the same data in different places (thus, redundantly) on multiple hard disk. By placing data on multiple disks, I/O operations can overlap in a balanced way, improving performance. Since multiple disks increases the mean time between failure (MTBF), storing data redundantly also increases fault tolerance.

Computer Definition Added By: Eric

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