Redundant Arrays of Inexpensive Disks (RAID) Analysis

Redundant Arrays of tacky Disks ( foray into) psychoanalysisPiriharan KarthigesanQuestionDescribe the various versions of bust, and which type you would use to obtain the level best redundancy and shelter measure, without sacrificing speed of access to selective information.What is a wear out?Redundant Arrays of Inexpensive Disks.In bingle word attackS rotter be known as a disk which provides infos storage in many different disks. wear out 0In wear out 0 the information is divided into blocks that are written to wholly disks in the array. Using multiple disks at the resembling time the rupture 0 offers superior I/O mathematical operation and this kind of writ of execution can be improved by utilize multiple controllers most probably a disk controller.Advantages of rupture 0 fall apart 0 has a very great performance in both writing and reading data.Easy implementation of the technologyNo disk everyplacehead and most importantly all the storage berth will be emp loyCost wise it is very soundDisadvantage of tear 0If a ingest fails, the chance of losing the data is highFault tolerance bust level 1In RAID 1 the data is always stored twice to relieve in the data case 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 1selective information are beingness stored in both drive where the loss of data is very get-goGood transfer rateIf a drive fails, there a lot of chance to get the data back to a second-stringer drive and it is a simple technologyDisadvantages of RAID 1 wasteful or unproductiveExpensiveHardware implementation is highly compulsory for RAID 1Data gets written twice in this RAIDRAID level 2Raid level 2 is used as bit 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 erro r correctionThe design of this RAID is simple and weakData transfer is goodDisadvantagesExpensiveRAID level 3This is also resembling RAID 5 but this drive requires a reader dedicated to check bit and RAID 3 is very rarely used except based on more specialized or processing environments that can benefit from the data.AdvantagesHigh read and write work 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. stripped of 3 disks required for implementationAdvantagesHigh rate of read trafficAggregation of the Read transfer is rate is very highpower is highDisadvantagesDesign is complexNot a good write transactionIf a disk fails, its hard to rebuild the lost dataRAID level 5RAID 5 is the most getd RAID and it requires 3 drives but can also work with 16 and the data blocks are mark on the drive and are all parity checksum and data is being written on it. Although the pa rity data is not written to a fixed drive, but then it is distributed all 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 verbalise that the RAID 5 can be supported a angiotensin converting enzyme disk failure without losing any data. Moreover, cache memories are being utilise 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 readilyAggregation of data is goodDisadvantages of RAID 5The design of this RAID is complicatedIf a disk or drive fails, its hard to stay on the dataTransfer rate of the data is the same as single disk which is one 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 RAID 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 tardilyer 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 identify as the nested RAID or even hybrid. The security is provided by mirroring all data from the secondary drives and by using striping across from each one 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 mirror in pairs.Advantages of RAID 10This RAID is implemented as striped arraysFault tole ranceRAID 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 best 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 direct 3 Parallel 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