RAID Glossary
This glossary contains some basic terms that may aid your understanding of RAID technology.
Term | Definition |
Array | Two or more hard disk drives that are grouped together and function as a single drive to the |
host computer. |
|
Fault tolerance | The ability of a computer to continue its function, even after one or more hard disk drives have |
failed. |
|
Intel® Application Accelerator RAID edition (IAA) Software program that replaces the original ATA drivers provided with the Microsoft® Windows® operating system. The IAA replacement drivers are optimized for computers using certain Intel® chipsets.
Logical drive | Two or more hard disk drives that are grouped together so that they appear and function as a |
single or logical drive to the host computer. | |
Mirrored/Mirroring | All data on a primary hard disk drive is duplicated on a secondary drive, to provide data |
protection. |
|
Parity | A type of data protection that uses verification to detect errors in data. |
Physical drive | The actual hard disk drive. |
RAID | An acronym for "Redundant Array of Independent Disks". This method of combining small, |
inexpensive hard disk drives offers advantages for data availability, equipment cost, and system performance. | |
See "Striped/Striping" | |
| See "Mirrored/Mirroring" |
Redundant
(Information Technology use) Additional computer components, such as hard disk drives, that are installed to back up the primary resources in case of failure.
| An acronym for "Serial Advanced Technology Attachment." This is a standard that uses serial |
signaling technology and is used for connecting hard disk drives into computers. | |
Striped/Striping | Data is spread evenly over multiple hard disk drives for improved system performance. There |
is no data protection. |
|
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