If you're using VMware ESX extensively but haven't deployed a chargeback tool, or at minimum a system for monitoring resource consumption and available capacity, you will lack valuable ammunition come budget time. Usage measurements can justify infrastructure expansion, help recover costs, even transform IT into a profit center. The VKernel Capacity and Chargeback Virtual Appliance is ESX-specific software that reports on capacity and resource consumption. It also provides chargeback totals based on a user-defined unit cost for four core metering sources: CPU, RAM, storage and network usage. An unlimited number of custom fields are available for monitoring cooling costs, administrative services, software licensing or whatever else you can dream up. VKernel says the product can handle as many as 300 hosts, so there's definitely room to breathe. Read the complete article at the source.