Case:
The RAID5 IBM server composed of 4 300G SAS interface hard disks Suddenly lost the power off -power division, resulting in the loss of the office system database and unable to run normally. The customer then contacted our engineers. Without other operations, we immediately fixed disk.
Solution:
Our engineer first draws out the hard disk and mark it in order; detects the 4 fast disk and finds that there are two hard disks with physical bad tracts; the disk with a bad sector is mirroring, and then the other two hard disks are composed of algorithms and other composition of algorithms.Virtual RAID array; finally export data; data verification success.Successfully recovered the data