Case:
The customer’s server is assembled by itself.The RAID card is a rocket array card, with a model of 26801F a total of four 1T hard disk RAID. Customers say they don’t know which RAID level.RAID card burns out and the data cannot be accessed.
Solution:
We perform mirrors to 4 hard disks.Among them, the No. 1 hard disk has a large number of bad sectors, analyzes the original RAID structure, and is determined to be RAID5 composed of four hard disks. Remove No. 1 hard disk with No. 2,3,4 hard disk for reorganization.This RAID starts the sector is not 0 sectors, which is special. There are four partitions. The DBR of the partition is 4096 per sector. This is also special.After modifying the autonomous tool code, successfully reorganize and reproduce all directory files.The data has a total of about 2.8T.