Redundant Arrays of Inexpensive Disks (RAID) Analysis

pointless Arrays of Inexpensive Disks (maraud) AnalysisPiriharan KarthigesanQuestionDescribe the various versions of snap, and which type you would use to obtain the maximum redundancy and security, without sacrificing speed of access to data.What is a assail?Redundant Arrays of Inexpensive Disks.In single word RAIDS can be known as a disk which provides datas storage in some(prenominal) different disks.RAID 0In RAID 0 the data is divided into blocks that are written to all disks in the array. Using multiple disks at the same time the RAID 0 offers superior I/O performance and this kind of performance can be improved by exploitation multiple controllers most probably a disk controller.Advantages of RAID 0RAID 0 has a precise great performance in both writing and reading data.Easy implementation of the technologyNo disk overhead and most importantly all the storage space will be usedCost wise it is very effectiveDisadvantage of RAID 0If a drive fails, the chance of losing the data is full(prenominal)Fault allowanceRAID take 1In RAID 1 the data is always stored twice to write in the data drive and a mirror drive. And in case if a drive or disk fails the controller uses the data drive or the mirror drive for data recovery and continues the operation.For RAID 1, we at least need two drives.Advantages of RAID 1 info are being stored in both drive where the loss of data is very lowGood transfer rateIf a drive fails, on that point a deal out of chance to get the data back to a electric switch drive and it is a simple technologyDisadvantages of RAID 1Inefficient or unproductiveExpensiveHardware implementation is highly needed for RAID 1Data gets written twice in this RAIDRAID level 2Raid level 2 is used as firearm level striping and this RAID is similar to RAID 5. This raids performance is poor and this raid needs at least 10 drives to setup.AdvantagesData error disciplineThe jut out of this RAID is simple and easyData transfer is goodDisadvantagesExp ensiveRAID level 3This is also like RAID 5 plainly this drive requires a reader dedicated to mirror symmetry and RAID 3 is very rarely used except based on much specialized or processing environments that can benefit from the data.AdvantagesHigh read and write transaction rateDisadvantagesNot a very good designRAID level 4Unlike other RAIDS the disk striping happens in a different way where it takes the byte level rather than bit level. marginal of 3 disks required for implementationAdvantagesHigh rate of read transactionAggregation of the Read transfer is rate is very highEfficiency is highDisadvantagesDesign is complexNot a good write transactionIf a disk fails, its hard to rebuild the lost dataRAID level 5RAID 5 is the most pimpd RAID and it requires 3 drives but can also work with 16 and the data blocks are striped on the drive and are all parity checksum and data is being written on it. Although the parity data is not written to a fixed drive, but then it is distributed al l over the drives and by using parity data the computer can recalculate data from some other blocks if the data is no longer available. So, in other words this can be also be said that the RAID 5 can be supported a single disk failure without losing any data. Moreover, cache memories are being implemented on to these drives to make their writing speed improve.Advantages of RAID 5Data transaction for read is very good. For example it reads the data so quicklyAggregation of data is goodDisadvantages of RAID 5The design of this RAID is obscureIf a disk or drive fails, its hard to retain the dataTransfer rate of the data is the same as single disk which is unitary of the main disadvantageRAID level 6This is RAID 6 is somewhat like RAID 5. In this drive the parity data are being written on both the drives. RAID 6 requires 4 drivers and can handle 2 drives losing. And thee is a very less chance of losing 2 drives at the same time. RAID 6 can survive even if it fails twice unlike like R AID 5 it doesnt take a lot of time to rebuild the lost dataAdvantages of RAID 6This is like RAID 5 where it reads and writes the data very quicklyEven if two drives fail, there is a possibility of getting the failed drives data by replacing it with the new driveDisadvantages of RAID 6Writing data are slower compared to RAID 5This drive is a bit complicated where rebuilding a drive can take time.Transaction of the data are slow because of the parity which does the calculationRAID level 10This RAID is identified as the nested RAID or even hybrid. The security is provided by mirroring all data from the substitute drives and by using striping across each of the drives to make the data transfer to high speed. And in this level, it requires at least four disk and the data will be striped and mirrored in pairs.Advantages of RAID 10This RAID is implemented as striped arraysFault toleranceRAID 10 has I/O rates.Disadvantages of RAID 10ExpensiveLimited scalabilitySelecting RAID 10 as security and redundancy where to help avoid the sacrifice of the dataI would personally use RAID 10 to obtain the maximum redundancy and security among the other RAID levels. This RAID level also gives the better performance with considerable speed of access to data. It is more redundant than other RAID levels because it stripes data across mirrored pairs. It is also the most secure RAID array because even if one of the disks fail the data can be recovered in no time due to its rebuild speed.REFERENCESDisadvantages Of Redundant Array Of Independent Disks. (n.d.). Retrieved January 22, 2017, from http//www.whatisnetworking.net/tag/disadvantages-of-redundant-array-of-independent-disks/Lynn, S. (2014, March 27). RAID Levels Explained. Retrieved January 22, 2017, from http//www.pcmag.com/article2/0,2817,2370235,00.aspRAID. (n.d.). Retrieved January 22, 2017, from https//www.prepressure.com/library/technology/raidRAID Levels RAID 3 RAID LEVEL 3 analogue Transfer With Parity. (n.d.). Retrieved January 22, 2017, from http//www.acnc.com/raidedu/3Redundant Arrays of Inexpensive Disks RAID 0-1-2-3 (Continued). (n.d.). Retrieved January 22, 2017, from http//www.datarecovery.net/articles/raid-levels-0-1-2-3.aspx