What is RAID ?

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What is RAID ?

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RAID stands for Redundant Array of Independent Disks. It is a data storage technology that combines multiple physical disk drives into a single logical unit for improved performance, fault tolerance, and data protection.

RAID is used to increase storage capacity, improve performance, and provide data redundancy.
There are different RAID levels, such as RAID 0, RAID 1, RAID 5, RAID 10, etc., each offering different benefits and trade-offs.
RAID 0 stripes data across multiple drives to improve performance but does not provide redundancy.
RAID 1 mirrors data across multiple drives to provide redundancy but does not improve performance.
RAID 5 uses block-level striping with distributed parity to provide both performance and redundancy.
RAID 10 combines mirroring and striping to provide both performance and redundancy.
RAID can be implemented using hardware controllers or software.
RAID arrays can be hot-swappable, allowing for drive replacement without shutting down the system.
RAID is commonly used in servers, NAS devices, and high-performance computing systems.

What is RAID ?

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