When you login to the OMU portal for the VCN 500 it gave a limited option , display only the HDD information , [No other information ]
Before logging in to the OMU portal of the server,
configure Internet Explorer as follows:
1. Open Internet Explorer, and choose Tools
> Internet options > Advanced.
2. On the Advanced tab page, On the Advanced
tab page, deselect Use SSL 2.0, Use SSL 3.0, select Use TLS
1.1 and Use TLS 1.2, as shown in Figure
2- IF the problem still exists , check the HDD status and in raid 5 .
3- Change the invalid HDD status to normal , then every thing will be ok
because of the three disk had invalid, it can't create RAID5 left 2 disks. I changed the status of invalid disk to normal
1-Connect the VCN server to UPS to avoid the power outage .
2-Chack the HDD status and keep a backup HDD to avoid any problem in the future .