The linked page on Alerting Principle there is good: https://response.pagerduty.com/oncall/alerting_principles/ https://response.pagerduty.com/oncall/alerting_

The linked page on Alerting Principle there is good: https://response.pagerduty.com/oncall/alerting_principles/ https://response.pagerduty.com/oncall/alerting_principles/ "We manage how we get alerted based on a simple principle, an alert is something which requires a human to perform an action. Anything else is a notification, which is something that we cannot control, and for which we cannot make any action to affect it. Notifications are useful, but they shouldn't be waking people up under any circumstance." They also distinguish between "needs fixing right now", and "needs to be fixed asap, but can wait until office hours"...