What good is a dashboard if it doesn’t show actual status
You need to draw a line in the sand somewhere, but whatever measure you choose is going to be somewhat arbitrary so I think it's reasonable to have a human make the final call (based on some known criteria).
Then put that on the dashboard! It certainly is an outage for the affected users (by your scenario).
- 999/1000 Data centers up
- 100,000 Users without service
- 6 paying customers without service (will get money back)"Sometimes, it's probably almost approximately around what we think could be along the spectrum of known values." - Me, as CEO.