Free Space Datastore Alert

My co-worker and I were able to figure this out.

For the alert, you have to set the value in bytes

I wanted to provide the solution we used on our side.  Instead of setting it to a flat value, we ended up using the utilization/space thresholds.  At this time, I did not see the space utilization threshold as an option under the Virtual Datastore Trigger conditions, so we ended up using a "Custom SWQL Alert (Advanced)."  On the "Set up your SWQL condition" select "Virtual Datastore"

In the query box supply the following:

WHERE Datastores.Thresholds.Name = 'VIM.Datastores.Stats.SpaceUsage'
AND (Datastores.Thresholds.IsLevel1State = TRUE
OR Datastores.Thresholds.CurrentValue > Datastores.Thresholds.Level1Value)

We built in a little extra redundancy in the event the threshold flag didn't trip, so we added in the comparison as well.  The query above will be the warning threshold, change the Level1 with Level2 in both values for the critical value.

From the actual datastore object within SolarWinds, go to edit thresholds and do an override on "Storage Capacity Usage" if you need to adjust to a higher or lower value.

We also started to use the modern dashboards, and are using the following query to show our low space datastores.

SELECT [VDS].Name
,[VDS].Type
,[VDS].Accessible
,[VDS].ManagedStatus
,[VDS].DetailsUrl
,Round(([VDS].FreeSpace/(1073741824)), 2) AS SpaceAvailable_GB
,[VDS].SpaceUtilization
,[VDS].ClusterCount
,[VDS].Thresholds.IsLevel1State
,[VDS].Thresholds.IsLevel2State
,[VDS].Thresholds.Level1Value
,[VDS].Thresholds.Level2Value
FROM Orion.VIM.Datastores [VDS]
WHERE [VDS].Thresholds.Name = 'VIM.Datastores.Stats.SpaceUsage'
AND ([VDS].Thresholds.IsLevel1State = TRUE
OR [VDS].Thresholds.IsLevel2State = TRUE
OR [VDS].Thresholds.CurrentValue > [VDS].Thresholds.Level1Value
OR [VDS].Thresholds.CurrentValue > [VDS].Thresholds.Level2Value)
ORDER BY [VDS].SpaceUtilization DESC

If you want the dashboard to show all of the datastores, just remove everything from the AND in the where clause up to Order BY.  The mappings for the columns are pretty easy.  Just use:
  Format:  Orion Entity
  Icon:  Entity type + status
  Field Mappings:
     Column Datastore
        Format:  Orion Entity, Icon:  Entity type + status
        Entity type:  datastore, Status:  ManagedStatus, Details URL:  DetailsURl, Label, Name

     All other columns we just used the no formatter option and flagged the various other values