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RAID Data Recovery

RAID stands for redundant array of inexpensive disks and it was specially developed to use smaller disks for better performance, data reliability, recovery and scalability. RAID is now days common for home desktop computers and most of the PC motherboards are coming into the market with inbuilt RAID controller whether they are in use or not. RAID can be found in various configurations and most of them are RAID 0, RAID 1, RAID 0+1, RAID 5 and RAID 10 along with their own redundancy method.

RAID 0 has an ability to strip data across multiple disks. It is similar to distributing data into distinct tiny pieces called stripe width and writing the stripes across multiple disks. It provides fastest way to write the data of large files like if there the file size was 5 KB along with a stripe width of 1 KB and 4 RAID disks set. First stripe would be written into first disk, second on second and so on but the fifth stripe would be written into first disk. If one disk fails, it results entire set failed.

RAID 1 is generally referred as mirroring due to the same data to be written into two disks in same time. This is an efficient solution of having two disks performing one job and if one of them fails then there is another disk that keeps data safe and continued read write operations.

RAID 0+1 is a super mix of RAID 0 and RAID 1 and it provides functionally of data striped across the disks first and then mirrored in the number of disks. If there are four disks exist than first data stripped into first two and mirrored in the pair across remaining two. It is stout solution but it is quite expensive.

If any kind of disk failure, data can be recovered by calculating paired contents of failed disk from the content of other disks. Failed disk is taken out and most probably replaced in hot swap installations and further data moved smoothly.

The aim behind the design of RAID was providing robustness and scalability but additional hard disk increases the changes of hard disk failure. However, it can continue running in case of single disk failure and depending on the RAID 0+1 configuration, data will be still written and read accurately to a certain point if more disks failed.

A RAID also requires pursuing through recovery process in the instance of multiple disk failure. HDD Data Recovery has specialized team of RAID recovery experts which provides excellent data recovery services for RAID by dealing with RAID setups every day.