Mean Time To Restore or MTTR
The average time taken to recover, fix and restore service when a release cause a failure
App inputs to this metric:
CI/CD tools
Range points and what they mean:
The DORA performance grades for MTTR are:
-
Elite - Less than 1 hour
-
High - Between 1 hour and 1 week
-
Medium - Between 1 day and 1 week
-
Low - Between 1 week and 1 month
Use cases:
- Plan releases to keep business impact to a minimum in combination with Change Failure Rate metric.
Some more references:
https://www.hatica.io/blog/dora-metrics/ (opens in a new tab)