Thanks for the reply H
Understand the difference between faults and trends, etc. but still not seeing any evidence that space on non-C drives is being considered.
To test this further I filled up a C drive on a test VM and it reacted as expected (correctly). Risk score was impacted and days to run out of disk space were 2.
At the same time I filled up the D drive no change in score. Then I grew the C drive, all scores reset to normal/green even though D was 99% full.
What sounds most helpful is custom dashboards -- if it is possible to manually construct alarms from raw metrics then this might be the ticket. Trying to find out where this is now.....thanks....