This case describes the problem that the omu does not read the hard disk because of the difference in the serial number of the hard disk.
【Problem Description】：
The customer found that some servers did not have a recording video.
Product type:VCN5x0
version:V100R002C30SPC200.
The customer has 135 VCN servers.
【Problem Analysis】：
We checked the hard disk and found that the OMU portal hard disk display needed to be initialized.
We checked the type of hard disk by command and found it to be diskless.
【Root Cause】：
It is caused by the difference in SN of the hard disk.
【Solution Description】：
The version of V100R002C30SPC205 has solved this problem, all servers have been upgraded to this version.
After the upgrade is completed, the issue does not occur again.
