RAID Controller

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.