Мониторинг одиночного хоста eSXI

Исторические данные по производительности:

ESXi 5.5 – Extending Performance Data to 36 hours

By default a standalone ESXi host will keep 1 hours worth of performance data. vCenter Server will allow you to capture performance data long term, but if you have just the standalone ESXi host you can extend the capture of performance data to 36 hours with just a simple configuration change.

https://jonsonyang2006.wordpress.com/2015/12/15/esxi-5-5-extending-performance-data-to-36-hours/