Case:
IBM 3512 disk array storage, 5 SAS hard disks, a capacity of 2T.Raid5. Data suddenly cannot be accessed.RAID information is lost.
Solution:
Start detecting 5 hard disks and found no hardware problems.According to analysis, the RAID5,5 hard disk made by 4 hard disks is a heat disk.Analyze the original RAID5 parameter, and directly reorganize recovery.The data is about 6t.The files are all DICM files. The files are very small, hundreds of k.Because the file is small, the export speed is not very fast.