A year ago we’ve added SMART metrics collection to our monitoring agent that collects disk drive attributes on clients servers. So here a couple of interesting cases from the real world.

Recently there was a mini-incident in a data center where we host our servers. It did not affect our service after all. And thanks to the right operational metrics, we’ve been able to instantly figure our what’s happening. But then an thought came up to me, how we would’ve been racking our heads trying to understand what’s happening without 2 simple metrics.