![cliff federspiel.vigilent lead mono](https://media.datacenterdynamics.com/media/images/Cliff-Federspiel.Vigilent-lead-mon.2e16d0ba.fill-280x185.jpg)
When free cooling isn't free
Systems that use outside air for cooling are cheap and efficient, but they are prone to failure and need careful monitoring
Systems that use outside air for cooling are cheap and efficient, but they are prone to failure and need careful monitoring