RAID6 how disk array data is restored

RAID5 systems are typically used for data protection in many large business situations. It must be admitted, however, that the RAID5 disk array system only allows a single hard drive to fail, and as the number of disk capacity and array width increases, the likelihood of a drive potential flaw is close to 100%. Naruto Data recovery in order to solve this problem, the RAID6 disk array system will soon be widely used, as the RAID6 system can protect critical user data even when two or more drives fail at the same time, with even higher security than Raid5ee or RAIDADG.

RAID6 technology uses a mathematical MDS code based on the Galoisfield algorithm or finite field to encode the data on the drive to avoid errors or deletions. The average fault-free time (MTDL) of the RAID6 system is higher than the RAID5 system, but this does not mean that RAID6 is completely secure. The cause of RAID6 fault is not only the hard disk drop, RAID control card failure and raid information accidental destruction is also a factor that can not be ignored, which often brings great loss to users, and most of the Server service engineers can not solve.

The RAID6 rating is a RAID method designed to further enhance data protection based on RAID5, and is actually an extended RAID5 level. Unlike RAID5, there is an XOR check area for each block of data in addition to the peer data Xor check area on each hard disk. Of course, the current disk data block checksum data can not exist on the current disk but interleaved storage. As a result, there are two checksum protection barriers per block (one layered check and one for the overall checksum), so the data redundancy performance of RAID6 is quite good. For this special verification protection mechanism, Xiao Yi has been able to achieve high-efficiency reorganization analysis, TB order RAID6 system can generally be within 2 days to recover smoothly. More importantly, the recovery of the RAID6 itself also needs to be able to get more images of the hard drive. Once the crash is caused by physical failure of the hard disk, data Recovery provider's Open data recovery capability is also very important.

Once the RAID6 disk array data loss situation, it is recommended that you must be the first time to find the help of professional technical organizations. Shanghai Day Shield Data Recovery Center is a very good data recovery team, I believe their most professional service will help us to retrieve lost data.

RAID6 how disk array data is restored