Case:
The server is a RAID5 composed of 4 disks. There were hard disks bright yellow lights before, but the server could be used normally, so I didn’t care about it. I found that the server could not turn on normally when I went to work the day before yesterday.
Solution:
After testing by the server engineer of the company, it was found that of the four hard disks, the No. 1 plate was physical damage, and there was a bad session on the No. 2 plate.The plate is cleaned.Subsequently, professional software was used to mirror No. 1 and other three plates, and through the underlying search, reorganized RAID array information, and finally the server data recovered successfully.