5 hard disk group RAID5 data recovery

Case:
Mr. Wu’s server was formed by the RAID5 array formed by 5 hard disks. Due to the loss of RAID information, the SQL database of the user in this array was in the server in the past year, so the data recovery center was found.

Solution:
In the process of analysis, the engineer of the Data Recovery Center found that there were many residual partitions and DBR information in the array, and the incorrect MFT was positioned to the current MFT, and the size was 512SEC.Next, the depressed situation appeared. In the mirror of 5 plates, I couldn’t find the verification block, because the 5 plates in the second block were normal MFT records (everyone knows that the raid of the strange number plate disk is raid.If there are four plates in a plate, then the school block must be garbled after XOR).At this time, I started to suspect that the array was not RAID5, and it was likely to be RAID0 (because the starting position of MFT was located in 766832 clusters/5).However, because the user is the administrator of the computer room and has certain experience, the patience is very affected. After 1 hour of confirmation, it is determined that the array is listed as RAID0, and everything is normal after Winhex reorganization.