Go to Manage Nodes, search for the server in question and click the + next to it to list the resources linked to it currently in the Orion database. You should find this erroneous volume here. Check the box next to the volume, and then hit 'delete' from the menu bar at the top.
he volume will never darken your alert mailbox again!
Thanks, it did the job!
Just, why it kept there. even though volume gone long ago?
It should be refreshed, isn't it?
Sadly not. Volumes are not automatically added or removed by SolarWinds, you always have to remove them. A particular pain in the proverbials when working with virtual machines.