RAID is a Redundant Array of Inexpensive disks, also known as Redundant Array of Independent drives.
RAID is used to increase the logical capacity of storage devices used, improve read/write performance and ensure redundancy in case of a hard disk failure. All these needs can be addressed by other means, usually more expensive than the RAID configuration of several hard disks. The adjective Inexpensive used in the name is not without a reason.
Strip Set with priority bit
|Min. Max Disk