It would certainly help separability to observe the data in a higher dimensional space, however when you're taking automated action against the results its some

It would certainly help separability to observe the data in a higher dimensional space, however when you're taking automated action against the results its sometimes pertinent to know which specific metric is causing the server to be an outlier. For example if network tcp retransmits are throwing it off we probably just want the system to kill it and let the autoscaling group bring up another server. If its memory usage we probably want to page someone.