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RAID Data Recovery Can Retrieve Data You Thought Was Lost

LACIE 2BIG RAID 1:

I have a LaCie 2Big server which also serves as a Raid 1 array for 2 hard drives. I have been using this as the main data storage point for the computers in the company, but the main computer recently reported that one of the hard drives has a bad sector. Software showed this sector was about a quarter of the way in, and I am having trouble getting the Raid controller to read the data on the drives while this bad sector exists. The computer tried to remap the sector, but this rebuild is eventually timed out on each attempt. The drive has now started dropping off of the system after each rebuild failure. The other drive has had to be replaced already after a failure, and I am struggling with the rebuild because the bad sector won’t allow it. The array is now completely offline in the eyes of the computer.

BUFFALO LINKSTATION NAS RAID 1:

I have a Buffalo Linkstation NAS which has become corrupt. The reason for this is that the NAS was dropped onto the floor, and the disks inside were damaged. I have recovered a little bit of information from one of the drives, but there are bad sectors all over the place, and a lot of data is missing still. I don’t want to lose the data which might be contained on the second disk, which has been in a RAID 1 configuration, but I also don’t want to miss the opportunity to recover as much of my data as possible so contacting yourselves to get a data recovery specialist to extract the data for me.

RAID Data Recovery Can Retrieve Data You Thought Was Lost

The use of RAID drives as bulk storage, particularly for businesses, is increasing in popularity. While RAID systems are generally very reliable they are not immune from problems that can lead to data corruption or inaccessibility. Some businesses are overly reliant on their RAID systems and so if a problem does occur they find that they no longer have access to any of their data and files that they need in order to continue their business.

You also need to be aware that there are significant differences between the different RAID architectures and configurations. The most common architectures are the RAID 0, 1 and 5 systems. They all utilise the same type of idea in which your data is split over multiple drives so that if one fails not all of the data is lost. Unfortunately it is not quite as simple as it sounds and so it is still possible to lose data if your data management is perhaps not as good as it should be.

The RAID 0 architecture is one that has no built in fault resistance because of the way that the data is written to the drives. The data is striped between two, or more, drives so that not all of the data is written to a single drive. Should a drive become inaccessible, corrupted or damaged none of the data will be accessible because there will only be partial files available on the undamaged drives. Therefore care must be taken when using the RAID 0 architecture as a storage solution.

The RAID 1 architecture is much more robust as it utilises mirroring. This means that full copies of the data are written to each of two, or more, drives. If one of the drives fails then there will be a complete copy of the data and files held on the other drive. This architecture, although robust, does not provide an optimal storage solution as everything is replicated in multiple locations.

The RAID 5 architecture utilises perhaps the most optimal data storage solution as the data is striped between a number of drives, with the minimum being three, so there is only a requirement to store one copy of the data, but there is also parity data that is written to each drive that means if one of the drives fails it is possible to recover the data from the failed drive by replacing it and allowing the data to rebuild from the good drives.

RAID recovery is a complex process as it not only relies upon knowing the architecture, but also a huge number of other factors that will affect how the drives can be recovered that include the operating system, the file system and the position in the array, among others.

Therefore you should give us a call as experts in the field of RAID system recovery so that we can provide you with a diagnosis of the problem that you have and can also provide you with free advice about your best course of action. We can also provide a quote for you so that you know how much money and time it will take for our professional RAID recovery engineers to recover the data from your RAID drive.