Editing Disk array controller (section)

{{Short description|Device that manages disk drives}}

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 often implements [[RAID#Hardware-based|hardware RAID]], thus it is sometimes referred to as '''RAID controller'''. It also often provides additional disk [[cache (computing)|cache]].

''Disk array controller'' is often ambiguously shortened to ''[[disk controller]]'' which can also refer to the circuitry responsible for managing internal disk drive operations.