We are using the VMware Virtual Machine (SOAP) Sensor and have looked at the PRTG manual for this sensor. It states that the sensor shows read and write latency but that "which channels the sensor actually shows might depend on the monitored device and the sensor setup".
We have added several VMs from the same vcenter and ESXi host using the same probe. In each case the VMs are the same OS and vmx version. However, some of them present disk latency statistics and some do not. Is there any reason for this behaviour?