As already mentioned, VMware provides many power tools to monitor the performance of your vSphere infrastructure. These power tools help you to diagnose different problems of your vSphere hosts and vCenter Server in order to resolve them. Let's take a look at some of the tools.
The main tool for performance monitoring is esxtop, which collects data based on different metrics, for example, host memory usage, network usage, disk usage/IOPs and CPU usage.
Esxtop is just like using top in Linux. It has the same look and feel and provides the same kind of information provided by top tools in Linux. Esxtop is a famous tool almost every seasoned system administrator knows about. It can be used in real-time performance monitoring of vSphere hosts, and metrics can be monitored for system interruptions, CPU, network, disk device, disk adapter, and memory, each on a dedicated screen. The real-time monitoring can help you to identify different problems...