Disk array controller: Difference between revisions

Revision as of 11:09, 20 October 2020

Revision as of 21:11, 30 December 2020

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A '''disk array controller''' is a device that manages the physical [[disk drives]] and presents them to the computer as [[Logical Unit Number|logical units]]. It almost always implements [[RAID#Hardware-based|hardware]] [[RAID]], thus it is sometimes referred to as '''RAID controller'''. It also often provides additional disk [[cache (computing)|cache]].

A ''diskDisk array controller'' name is often improperly shortened to a ''[[disk controller]]''. The two should not be confused as they provide very different functionality.

== Front-end and back-end side ==