Hi,
I looked for variables in the alert for volume capacity (VM datastore) in PERCENTAGE.
What we see is CAPACITY field only.
Try to use "Space Utilization" in Virtual Datastore, it should be a percent definition of used space, or "Provisioned Space Allocation" in Virtual Datastore that should be a percent definition of allocated space.
If it is not exactly what you are looking for, you can create a custom SWQL query (it is at the end of the first drop down in the second step) where you compute your own condition, for instance WHERE CASE WHEN IsNull(Capacity, 0) > 0 THEN (((Capacity - FreeSpace) * 1.0 / Capacity) * 100) END > 90
That will cause triggering an alert in case used space is more than 90% of capacity.
Regards
Lubo
Thank you Lubo.