Redundant Array of Inexpensive Disks
E703147
Redundant Array of Inexpensive Disks (RAID) is a data storage technology that combines multiple physical disk drives into a single logical unit to improve performance, reliability, and fault tolerance.
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
acronym
ⓘ
data storage technology ⓘ redundancy technology ⓘ |
| abbreviation | RAID NERFINISHED ⓘ |
| alsoKnownAs |
RAID
ⓘ
Redundant Array of Independent Disks NERFINISHED ⓘ |
| canProvide |
hot spare disks
ⓘ
online capacity expansion ⓘ online rebuild after disk failure ⓘ |
| category |
computer data storage
ⓘ
data protection ⓘ fault-tolerant computer systems ⓘ |
| combines | multiple physical disk drives ⓘ |
| forms | single logical unit ⓘ |
| hasLevel |
RAID 0
NERFINISHED
ⓘ
RAID 01 ⓘ RAID 1 NERFINISHED ⓘ RAID 10 NERFINISHED ⓘ RAID 2 NERFINISHED ⓘ RAID 3 NERFINISHED ⓘ RAID 4 NERFINISHED ⓘ RAID 5 NERFINISHED ⓘ RAID 50 NERFINISHED ⓘ RAID 6 ⓘ RAID 60 NERFINISHED ⓘ nested RAID levels ⓘ |
| implementedBy |
firmware-based RAID
ⓘ
hardware RAID controllers ⓘ software RAID ⓘ |
| improves |
sequential read performance
ⓘ
sequential write performance ⓘ |
| introducedIn | 1980s ⓘ |
| proposedAt | University of California, Berkeley NERFINISHED ⓘ |
| proposedBy |
David A. Patterson
NERFINISHED
ⓘ
Garth A. Gibson NERFINISHED ⓘ Randy H. Katz NERFINISHED ⓘ |
| proposedIn | paper "A Case for Redundant Arrays of Inexpensive Disks (RAID)" NERFINISHED ⓘ |
| purpose |
improve data availability
ⓘ
improve data reliability ⓘ improve storage performance ⓘ provide fault tolerance ⓘ |
| requires | multiple disk drives ⓘ |
| tradeoff |
capacity versus redundancy
ⓘ
performance versus fault tolerance ⓘ |
| typicalUse |
network-attached storage
ⓘ
servers ⓘ storage area networks ⓘ workstations ⓘ |
| uses |
data mirroring
ⓘ
data striping ⓘ parity information ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.