Greg Cope mailed us a few weeks ago with a pointer to this project, which has been monitoring DevOps at the Financial Times (FT) here in the UK. It’s hard for everyone in the group to simultaneously maintain an overview of the health of the stack under normal circumstances. They use  Nagios , a great piece of kit with one fatal flaw: Nagios emails everybody on the team every time a check changes state

See the article here:
The big flashing DevOps thing