Raid 0 disk failure and data recovery

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Raid 0 disk failure and data recovery

A redundant array of independent disks (RAID) group is made up of several levels and is a way to store data in different hard disks. Each RAID level has its own benefits and drawbacks, but RAID 0 is the easiest to create and, therefore, most popular among home users. RAID 0 offers the best performance, but does not offer redundancy. This means that if one disk malfunctions, all the data on that disk will be lost. However, the rest of the data can be recovered.

 
RAID 0 failures could occur due to a number of different reasons:
– Power failure.
– Power surges.
– Controller failure.
– OS failure.
– Human error.

There are two types of damage that can be caused to RAID 0 configurations:
Logical corruption or physical damage causing the failure of one or more disks. Not connected with any member disk due to software or controller failure. There are primarily two ways to recover data in case of RAID 0 failure:
– Manual method.
– Using trusted third-party software.

Manual Method
We strongly advise against using the manual method unless you are well-versed with RAID technology. This process is convoluted and a single wrong step could result in permanent loss of all your data. If you are not good with RAID technology, please use the alternate method. The manual involves determining the disk order, first disk, block/stripe size and start offset of the member disks.
Determining the Disk Order
Use text files with logs and timestamps to determine the disk order. You can use a disk viewer tool to look for the disk members for these files. Once you’ve found a fragment of such a file, you’ll need to locate the disk that contains the next fragment.
Determining the First Disk
Use a disk viewer to find:
1. If it is a hardware RAID, look for the disk with the MBR. This is the first disk.
2. In case of a software RAID, look for the boot sector contained in the first disk.
Determining block or stripe size:
If you have a hardware RAID, go through the relevant documentation to find the block size. In case of a software RAID, use the standard value. For e.g: 128 sectors for Windows.
Determining start offset:
In most hardware RAID, the data starts at the start of the hard drive. The offset for this will be 0. In software RAID, the offsets for all the member disks are the same. Locate the boot sector to – identify the offset – of the volume.

Using Third Party Software
Using a reliable third party software like Stellar Data Recovery Technician is the safest and easiest way to perform a RAID recovery. With an intuitive user-interface, Stellar makes RAID 0 data recovery a walk in the park.

Here’s how you can easily perform RAID 0 recovery using Stellar Data Recovery Technician:
– Connect your RAID 0 drives to your computer using an HDD enclosure or SATA-USB converter.
– Download and install the software – Windows Raid Recovery.
– Run the program and select the type of media you want to recover and click ‘Next’.
– Select ‘RAID Recovery’ from the ‘Select Location’ dialog, and click ‘Scan’.
– Click RAID 0 in the top-left corner of the ‘Raid Reconstruction’ window.
– Change the order of the listed disks to match the order in which they were arranged in the RAID 0 stack.
– If you are not sure of the order, click ‘don’t know start sector of drives. Show list of probably start sectors’. Select one or more of the start sectors listed or add your own manually.
– Choose ‘Stripe/Block size’ from the drop-down menu and click ‘Build RAID’.
– If you have entered the correct parameters, the software will create a RAID construction and display the RAID volume details in a ‘Select Constructed RAID’ window. Click on ‘Show Volume List’.
– A ‘Select Volume to Recover Data’ window should appear. Choose the volume from which data needs to be recovered and click ‘Scan’.
– If your desired files are not listed, click on ‘Click Here’ link beside Deep Scan.
– The ‘Tree View’ pane lists all of the files and folders that have been recovered. Search for the files you need from the list using the search box or ‘File Type’ tab.
– Choose the files you want to recover and click ‘Recover’.
– Click ‘Browse’ to select the location where you’d like to save the recovered files. Do not choose the drive that was in the RAID array.
– Click ‘Start Saving’ to allow the software to start saving the recovered files to the selected location.

That’s it. It’s that simple to perform a RAID 0 data recovery in case of a RAID 0 failure.

Conclusion
It is not advisable to use RAID for backup purposes as they are built for redundancy and to maintain continuity in workspaces with a lot of computers. RAID 0 arrays are prone to data loss as they are non-redundant. It is very important to create a backup of your RAID array and store it in a safe location as a precautionary measure. It is also critical to have a trustworthy and well-equipped RAID recovery software like Stellar Data Recovery Technician on hand so that you can quickly and easily recover your data in case of crisis. If in case the software is not work you can approach for Raid data Recovery Services.

Stellar is one of the pioneers in data recovery services and software with a presence in 18+ locations across the globe. Starting out its operations in 1993 (25 years ago), it has served more than 3 million customers with 100% secure and confidential data recovery services. It has a strong portfolio of Class 100 clean rooms, in-house developed advanced technologies and software and a team of 100+ R & D engineers to solve even the complicated data problems within a stipulated time. Recognized and awarded for outstanding services in the IT industry, Stellar has become the first and foremost choice of various Fortune 500 companies.

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