What is RAID 3?

RAID 3 is a Redundant Array of Independent Disks (RAID) standard that Makes use of striPing at the byte stage and shops devoted Parity bits on a separate disk force. Like RAID 2, RAID 3 requires a unique Controller that lets in for the synchronized spinning of all disks. Instead of striping inFormation Blocks into distinctive disks, RAID three stripes the bits, which are stored on one of a kind Disk Drives. This Configuration is used much less commonly than other RAID degrees.

What Does RAID 3 Mean?

Because RAID 3 combines parity and striping with saved parity bits on a devoted disk, this configuration calls for as a minimum 3 separate tough disks – for striping Records and one for storing parity bits. The disks should spin in sync, so sequential examine/write (R/W) operations achieve suiTable performance. However, random R/W operations might also take heavy hits in performance.

In real phrases, study pace is tons Greater than write speeds because of required Checksum calculations, which is a overall performance bottleneck for the complete Disk Array.

RAID 3 advantages consist of:

• High Throughput for moving large aMounts of information
• Resistant to disk Failure and breakdown, which leads to RAID 3’s important risks (underneath).

Disadvantages:

• The configuration can be too much if a small document transfer is the simplest requirement.
• Disk failures may additionally notably decrease throughput.