Recovering Data from the Most Reliable Storage RAID : Music Search Site
Recovering Data from the Most Reliable Storage-RAID
To achieve the goals of better performance, scalability and data reliability and data recovery, RAID was thought to be designed by using several disks in the form of an array. But unfortunately this devil of data loss has also made its impact on this reliable storage media. RAID is short termed for Redundant Array of Inexpensive Disks.
RAID, at the present date, is popular for different configurations, each having their own method of redundancy. The most popular ones are RAID 0, RAID 1, RAID 0+1 and RAID 5.
Now let’s talk about the least configured one: RAID 0. This uses just the simple method of striping for storing the data. As the general term striping means dividing anything and the same is followed by RAID 0. The data in this case is divided into smaller pieces of fixed size and then these stripes are saved simultaneously on separate disks. This increases the speed of read/write procedure. But in any case, if either of the disks fails then the whole set fails and the data gets lost.
RAID 1 uses the method of mirroring and so is less prone to data loss. This is due to the reason that the same data is written on two disks, i.e. two disks are made exact copy of each other. So if either of the disks fails then the second one is there to help you out. But in case of natural disasters, there are least chances for the survival of any of the disk.
RAID 0+1, as the name suggests, is the combination of two mentioned above. The data is firstly stripped and then mirrored across the same number of disks. This is the most reliable solution but not applicable for low-budgeted firms due to the expensive nature.
RAID 5 is similar to RAID 0, except from one difference of support to parity write. This parity acts like an error correction which is a combination of the data on the other stripes. Several disks are made to write this parity, which makes it slower than its counterparts. If any of the disk fails then its parity is calculated from the contents of the other disks and the data recovery is done.
Although RAID is proving to be safer than what a single hard disk does but instead they are not completely safe. The natural disaster strike is the keen factor playing in this context.
In many cases, it becomes necessary to do RAID data recovery at some point of time of multiple disk failure. Majority of the RAID failure cases demands the care in data recovery labs called Clean Rooms.
Clean Rooms are set up by different data recovery companies to avail the data recovery services. Here the damaged components of the hard drive are replaced and the further procedure of data recovery is carried out in the dust free environment.
Stellar Information Systems Limited marks the tremendous performance in recovering data from RAID. Either it is the case of RAID controller failure or some fire or flood attack, the data recovery experts of Stellar are well capable of handling any of the condition.
Class 100 Clean Room facility is the superb feature of the data recovery service provided by Stellar. The company also offers you the data recovery software for various operating systems, in case of the simple repair of the hard drive does not work in recovering data.
Recovering Data from the Most Reliable Storage-RAID / Author: Jerry Tim
