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Data Backup Plans

by bellamartin

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RAID is the acronym of Redundant Array of Independent Disks. RAID is a generic term which is used in world of Storage technology. RAID technology is designed to ensure data security. It involves usage of redundant/replication as well placing the data at different location. The RAID technology uses different ways to store the data among different storage disk which are categorized as RAID levels thus ensures security. There are five RAID Levels which are mostly used for data storage. In this article I will let you know about the different types of RAID levels and how you can utilize them to ensure data security.

RAID Level 0:

This is the primary level which ensures security by creating data partitioning/segmentation in bytes and keeping them in different disks without redundancy/replication of data. This increases the performance but problem occur when any of the disk failure which leads to data loss. This level does not provide feature of error correction.

RAID Level 1:

Form this level concept of data mirroring and multiplexing comes into the picture. When you keep your data with RAID Level 2 based security then data replicates itself and identical data is stored on the two disk drives. For implementing the Multiplexing the concerned disk drives are deployed with separate controller for performing read/write task concurrently which results in enhanced performance.

RAID Level 2:

RAID level 2 is used rarely. In RAID Level 2 the data segmentation is performed in terms of number of bits rather than bytes. All the disks are synchronized in such a way that when the data segmentation is performed each consecutive bit is stored on the different drive. Then Hamming code parity is calculated of the related bits and the parity information is stored on the separate drive.

RAID Level 3:

In RAID Level 3 the data segmentation is performed in terms of number of bytes. All the disks are synchronized in such a way that when the data segmentation is performed each consecutive byte is stored on the different drive with dedicated parity bit. Then parity bit is calculated for each of the storage disk and the parity information is stored on the separate drive. Thus RAID Level is used very rarely as it is not able to fulfill concurrent multiple requests for service by the user.

RAID Level 4:

In RAID Level 4 is designed to fill the loopholes of RAID Level 4 as it allows independent access to all the drives thus improves the overall performance. Similar to RAID Level 3 this also utilizes the Byte level segmentation of data. But in this case Parity bits information is stored on a separate partition. Thus in case of any data failure recovery operation can be performed through parity bit drive.

RAID Level 5:

In this level Byte level segmentation is used and parity bit is distributed along with the data. For implementing it one drives always need to be active. Whenever a disk failure occurs it can be recovered from the distributed parity across the disk. RAID Level 5 provides error correction feature as well as fault tolerance thus improves overall performance.    

Thus you can secure your data according to the above mentioned method in economical manner. If you want more information then visit Impcsupport website. They also provide computer maintenance tools for enhancing the speed and performance of computer. They also provide online technical support for resolving computer problems.

 

Summary:

RAID is the acronym of Redundant Array of Independent Disks. RAID is a storage technology which combines multiple disks into a single logical unit. It involves replication as well as data storage at different location for ensuring maximum data security.

 

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