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Virtual servers, as opposed to real physical servers, provide great cost benefits. The applications, services, together with the virtual servers, need to be up and running all the time. Any outages or performance degradation in the virtual servers, will affect the users of these applications and services. Hence it becomes imperative to monitor and manage those virtual servers continuously. The Free "ManageEngine VM Health Monitor" tool will address this monitoring requirement. The ManageEngine VM Health Monitor tool, as the name implies, monitors important parameters of VMWare ESX and ESXi servers. The tool fetches comprehensive data about the servers and presents them as visually elegant graphs and reports. The relevant data, graphs and reports are displayed in a desktop tool dashboard providing wealth of information about the real-time functioning of the virtual servers. The "ManageEngine VM Health Monitor" tool can monitor two VMWare servers simultaneously. ManageEngine VM Health Monitor tool provides an exclusive ESX / ESXi monitoring, as a desktop tool dashboard. It shows the actual resource utilization of the virtual servers alongwith CPU and memory utilization for each guest OS on the ESX / ESXi server. The dashboard quickly shows how many virtual machines are present, how many are powered on/off or suspended, how much CPU and memory are allocated to / consumed by each virtual machine etc., in an intuitive bar graph. Using the tool, administrator can also set threshold values for CPU and memory usage, like critical and warning thresholds. If at all, the virtual servers behave abnormally and the CPU and memory utilization dangerously crosses the threshold limits, alert signals are shown in the dashboard tool. The IT administrator can then effortlessly manage instances to prevent server crash, or bring back the serveres to normal functioning state. The ManageEngine VM Health Monitor tool comes handy.