RAID Level 3

 

Striping with dedicated parity drive

RAID level 3 provides redundancy by writing all data to three or more drives.  This RAID level 3 disk array provides excellent storage for video imaging, streaming, publishing applications or any system that requires large file block transfers.

Advantages

Single dedicated parity disk

High read data rate

 High write data rate 4 drives minimum

 No performance degradation if drive fails

Best and worst case performance similar

Disadvantages

In-efficient with small file transfer

RAID level 3

Application

Ideal for video streaming/processing that process large blocks and files sequentially.