Check Disk Volumes is listed on the Node Details
1. Login to Orion using an ADMIN account
2. Go to Admin
3. Manage Views
4. Scroll down to Node Details then edit
5. Check on the Resources either in any column if Disk Volumes is present. if not
a. click plus button in reources in column 2
b. expand Node Detail Reports, scroll down to Disk Volumes and check the box next to it then click submit.
The steps above is considering that the problem is accross all nodes
You may also want to check Views by device type for possible web view depends on the object type.
if all fail, consider opening a support ticket