The term RAID is an acronym for Redundant Array of Independent Disks. It’s a way for enhancing the security and reliability of storing information by blending multiple hard disk drives into one logical device. The benefit of a RAID system is located in its enhanced redundancy. That is, because the information is stored on many different hard drives, it’s not as probable that it’ll be dropped due to hard disk failure. If a single drive fails, as sometimes happens, your data should still be secure, as it’s saved on more than one drive.

RAID Data Storage

The RAID concept was initially conceptualized in 1987 by researchers at the University of California, Berkeley. The expression is currently utilized to refer to some information Storage System that could copy and split data files among at least two disk drives. Regardless of the fact that multiple disc drives are used, the pc’s functioning system addresses the whole system as though it were a single push.

The goals of the method are twofold:

1. To improve the reliability of your information.

Maintaining your significant data on at least two discs makes less vulnerable to losing due to a drive failure.

2. Improved input/output performance.

Numerous drives enable you raised storage and quicker access to your files.

RAID systems are suitable once you have considerable quantities of information to store or whenever the information that you’re saving is significant enough that you need a readily available backup.

RAID Methods

There are 3 basic RAID methods that are utilized by the variety of RAID levels to a lesser or greater degree. The 3 kinds are mirroring, striping and striping with parity.

Mirroring

Mirroring is only storing the exact information in two different hard drives. The best thing about this is that if a single drive fails, you’ve got the information saved on a different drive so that you don’t lose it. It may also process two information read requests in precisely the exact same time and therefore obtain information more quickly than one drive could.