redundant array of independent disks

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- US Pronunciation
- US IPA

Definitions of redundant array of independent disks words

noun Technical meaning of redundant array of independent disks (storage, architecture) (RAID) A standard naming convention for various ways of using multiple disk drives to provide redundancy and distributed I/O. The original ("..Inexpensive..") term referred to the 3.5 and 5.25 inch disks used for the first RAID system but no longer applies. As solid state drives are becoming a practical repacement for magnetic disks, "RAID" is sometimes expanded as "Redundant Array of Independent Drives". The following standard RAID specifications exist: RAID 0 Non-redundant striped array RAID 1 Mirrored arrays RAID 2 Parallel array with ECC RAID 3 Parallel array with parity RAID 4 Striped array with parity RAID 5 Striped array with rotating parity RAID originated in a project at the computer science department of the University of California at Berkeley, under the direction of Professor Katz, in conjunction with Professor John Ousterhout and Professor David Patterson. A prototype disk array file server with a capacity of 40 GBytes and a sustained bandwidth of 80 MBytes/second was interfaced to a 1 Gb/s local area network. It was planned to extend the storage array to include automated optical disks and magnetic tapes. 1
noun redundant array of independent disks (computing) A system using multiple hard drives for the sharing or replication of data in order to increase data integrity, fault-tolerance or throughput. 0

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