DELLMD300015 hard disk RAID5 data recovery

Case:
Dell MD3000 disk array cabinet, a total of 15 hard disks.Each hard disk capacity is 1T.I made a set of RAID5. At first, a hard disk was broken, No. 10 hard disk, the customer replaced the new disk, and began to rebuild it. Suddenly, the three hard disks were 3, 5,6.It is very important. The customer did not move anymore and changed to the supplier. The supplier did the operation of forced online under the guidance of the Dell 800 after -sales, and the fault was still the same.

Solution:
We first tested the four bad hard disks. Two tests were tested, and the other two were bad sectors. After using professional equipment for corresponding treatment, all hard disks were made.Analyze the original RAID5 parameters, successfully reorganize RAID5, and restore all data.