At my work place - I regularly see messages like this in Solar Winds warning of latency between ESXi hosts and their data store. I have no idea why 20ms is chosen as the warning level. And I'm not sure exactly what type of latency is being referred to in this context. With ICMP I'm familiar with RTT time. But I imaging this is a different measurement. Does anyone know how vSphere measures "latency" from an ESX to its datastore? From a VM to its datastore? Thank you.
"NetPerfMon Event Log : The total latency between a san-server-01.acmeloans.com and a datastore is above 20 ms." action was executed successfully