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Advantages and Disadvantages of RAID
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Advantages of RAID

The foremost advantage of using a RAID drive is that it increases the performance and reliability of the system. The RAID drive is a credible example that could be used in a server. The RAID increases the parity check and thus it regularly checks for any possibility of a system crash. Disk stripping is also a hot topic when we discuss about the RAID drives. The performance is much highlighting and increases a lot when the disk stripping is done. How the performance increases a lot by the disk stripping? This is actually done by the interleaving of the bytes or the group of bytes. The interleaving of this sort is done across the multiple drives. By this procedure only one disk is reading or writing the data. The reading and writing of the data are done in a simultaneous process.

The mirroring is the complete duplication of the data. Or in the other sense the mirroring is the 100% duplication of the data on two drives. The drives may be considerably the RAID 1. The concept of parity comes after the concept and application of the mirroring. The parity involves that the data from the crashed system be matched up with the data that is stored in the other disk. The parity check is the term allotted for the work it carries out. The procedure involved is done as described below: the parity is used to calculate the data in the two drives and store the results in the third drive. In case there are more than two drives the parity check is done on all of them and the results are stored on a completely altogether different drive. The preferable device may be the RAID 3 or the RAID 5. And the failed drive is replaced.

Disadvantages of RAID

A major disadvantage regarding the RAID drive is that there needs to be written the drivers for a Network Operating System (NOS). Hence the major fact and also the most important usage of the RAID system is that it is essentially designed and extensively used in a server. So when the server comes into the picture, there obviously has to be a network.

Hence the device drivers should be included so as to design the system. The design is a quite complex process as far as the RAID is concerned. Another disadvantage regarding the RAID is that it is very much difficult for an administrator to configure the RAID system. The ability to dynamically enlarge the RAID server is also complex process; especially for those administrators who are the IS managers and also the LAN administrators.

Also the major disadvantage is that the system should support the RAID drives. Most of the RAID drives include the different types like the RAID 0, RAID 1, and RAID 2 etc. Hence if the server system is using a different type of RAID drive and that is not supported by the system then the problem of availability may arise.

The situation involves the determination of the RAID drives that are needed because some of the systems might support some different types of RAID drives and the other systems may support some different types of RAID drives. The DGR technology allows the administrator of any network system to reconfigure the Storage Dimensions RAID System. The DGR here stands for the Storage Dimensions Dynamic Growth and Reconfiguration. Along with the disadvantages also the RAID system offers a lot of growth and stability and the advantages override these things. Hence RAID is still the most widely used server even along with the above mentioned disadvantages.

 

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