How is the availability % calculated for Monitor Group?
Take for eg., Monitor Group shows downtime % as 80% whereas none of the monitors has <90% downtime %. This is because Monitor Group's availability is based on any one of the monitors present in it by default. For eg, assume a Monitor Group has 2 monitors in it. If the first monitor is down from 10 to 11 AM, then Monitor Group has 1 hour downtime. If the second monitor goes down from 3 to 4PM, then the Monitor Group's total downtime is 2 hours. If you take the downtime report, it would say monitor group is not available for 2 hours even though each individual monitor is not available for 1 hour only.