RAID Levels Supported By Windows Server 2012

RAID 0 (Disk striping)

Two or more volumes, each on a separate drive, are configured as a striped set. Data is broken into blocks, called stripes, and then written sequentially to all drives in the striped set.

Advantages: Speed and performance.

 

RAID 1(Disk mirroring)

Two volumes on two drives are configured identically. Data is written to both drives. If one drive fails, no data loss occurs because the other drive contains the data. (This level doesn’t include disk striping.)

Advantages: Better write performance than disk striping with parity.

 

RAID 5(Disk striping with parity)

Uses three or more volumes, each on a separate drive, to create a striped set with parity error checking. In the case of failure, data can be recovered.

Advantages : Fault tolerance with less overhead than mirroring. Better read performance than disk mirroring.