Case:
Customers accidentally unplugged a plate when they do cleaning and hygiene for the server, causing the array to collapse.
Solution:
The disk number mentioned in the following is not the sequence in the array. DISK0 and DISK1 plates are all MBR, DISK2 plates are all 0. The verification through this proves that the array uses RAID5.DBR to exist at No. 32 No. 32The sector, after analysis, found that the size of the block is 16 SEC (ie 8KB).After confirming the size of the block, continue to analyze it, and discovered the FAT table of the first logic disk. The FAT table logo used by the version is F8FFFFFF instead of the common F8ffffFF0F.At that time, the verification was unable to pass, but the DISK1 DISK0 was normal. After a large number of verifications, the DISK2 check was not approved by the start of the second logic area. At this timeEssenceBecause RAID5 can work normally even in the case of a less disk, the preliminary analysis result is the right band and the disk order is DISK1 DISK0 and directly remove the No. 2 disk for reorganization.The data of the logic E drive that the user must be verified is normal, and the data is ended.