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RAID Controller

Definition - What does RAID Controller mean?

A RAID controller is a type of storage component that manages the disk drives in a RAID infrastructure. It provides the physical disk drives as logical units to the computer or server managing the RAID infrastructure.

A RAID controller is also known as a disk array controller.

Techopedia explains RAID Controller

A RAID controller typically provides grouped logical disk space to the operating system and other applications.

RAID controllers are classified based on:

  • RAID level they support
  • Number of internal or external ports
  • Drive types (SAS/SATA/PATA)
  • Number of drives it can support
  • Front-end and back-end interfaces
  • Native cache memory

The front-end interface of the RAID controller enables communication with the server host adapter, whereas the back-end interface communicates and manages the underlying disks.

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