RAID Data Recovery for Server and Raid Disk Volume Array

Data Recovery Process for Raid Disk Array

Though raid disk arrays offer more redundancy and data security over standard disk systems, they are often complex and more difficult to recover once fail.

The process begins by looking at the kinds of failure occured in a raid volume. If the disk failure is due to failed disks, effort will be spent in getting the failed disk backed to ready state (see Hard Disk Data Recovery). The low level binary contents of each disk are then extracted and analysis is carried out on the extracted disk images. A process of de-stripping will be carried out on each of the extracted disk image upon confirming the correct orientation of disk elements forming the raid volume, the raid strip block size, the parity location etc. Very often, file system repair is needed before the data could be finally accessed.

Once data layout pattern making the raid logical volume has been identified and confirmed, the critical data will be uplifted into other disk media. The data integrity is then evaluated to ensure that the data is of acceptable quality before a file list is finally produced for customer review.

Normally, we only require the hard disks making up the raid volume in order to recover your lost data. In some of the more complex situations whereby customers are not able to provide much details on the raid configuration or problems, we may require the whole system though it is rare.