Challenges faced by virtual data centers and management tools

The spread of virtual machines has demonstrated the necessity of understanding new business policies and processes, proving that when creating new server instances, appropriate tools are required to monitor Virtual Machine activity. This method also applies to virtual machines that are not needed or used. Removing these VMS can clear resources for other loads to avoid the need to purchase more servers, storage, and network components.

So how is the best way to allocate server resources to virtual machines? Do you need to prepare more resources than physical servers? What if I don't know the number of required resources?

Although there is no unique method that applies to all situations, you can decide the ideal number of computing resources allocated to each virtual machine, but there are some principles that can help administrators find the starting point.

First, most documents in the application detail the minimum and recommendation system requirements. Although these system requirements are usually for physical systems, many IT experts allocate resources that exceed the recommended value of 5% to 10% to meet the virtualization system overhead. Other experts who want to virtualize existing applications will use monitoring and evaluation tools to measure the current application resource overhead, then allocate resources to the virtual machine that are sufficient to handle peak usage (a small part is used for virtualization ).

Resource allocation has a direct impact on workload or server integration. For example, allocating additional resources to a workload can prevent performance problems caused by the increase in computing requirements. However, this reduces the resources available for other loads and limits integration. The opposite is true. unallocated resources allow more loads to be added to the same server, but may cause performance problems.

Remember that the new virtual machine configuration is only one step in the existing monitoring, evaluation, and adjustment process. If the monitoring tool shows a shortage of resources or abnormal application performance, Virtualization allows organizations to adjust the number of resources for each virtual machine. In fact, regular monitoring and careful analysis of resource usage are also crucial for long-term resource allocation plans.

Virtualization Technology is constantly being improved to provide IT experts with the tools they need to make more informed resource allocation decisions. But there are still a lot of improvements to the process-especially when virtualizing unstable or cyclical resources. Resource allocation and integration can usually achieve a subtle balance between solving expenses and reducing operational expenses through integration. In addition, you can allocate enough idle resources to meet possible growth needs without rebalancing the resource allocation of major loads. To achieve this goal, organizations need to rely on improved tools and common business policies that can discover common virtual traps.