Nutanix, AHV, MS Server 2016 installed with IIS, Media Wiki.
Out of the blue, the server performs very slow. The MediaWiki site takes forever to load ( at times a Server 500 error appears when going to the MediaWiki site from a desktop). Opening the console shows the Server logon window but very slow. Everything is very slow. Once logged on, it takes almost 20 min for the server management window to open.
Currently, vCPU=6, Cores per CPU=4, RAM 16
CPU Usage around 10% and Memory usage around 17%
Only server that acts like that. Ran
DISM /Online /Cleanup-Image /ScanHealth and so on and everything is ok/ no problems. Rebooted all hosts.
Not sure what caused this all of a sudden ….