Issue link: http://hub-fr.insight.com/i/532074
18 Capacity Management Over-provisioning is expensive. It's common to see virtual machines with far more capacity than they need to support peak demand. As a result, server resources often sit idle, using electricity, generating heat, and adding time and cost for IT – but contributing very little to the operation of the business. Under-provisioning can be risky with exposure to performance issues. If a mission-critical workload doesn't have the processing power, storage and other network resources it needs, VM performance suffers, and so does the business. Capacity management: What is it? Capacity management helps identify idle and over- provisioned VMs to reclaim excess capacity and increase VM density without impacting performance The key is insight into the data center -- knowing how much resource each VM really requires, amount of resources available and how much will be required in the future. Companies that see the entire landscape have an advantage. They get historical as well as real-time insight into the IT environment, and can use operations management tools to spot underused resources and see the source of a problem – for example, idle, powered-off or super-sized VMs. Dashboards make it easy to see the resources that are available and make informed decisions about provisioning. And with predictive analytics, it's easier to anticipate future needs and provision the right amount of resources for future workloads.