Cloud Computing Outlook

The Importance of Right-Sizing Cloud Instances and VMs

By Cloud Computing Outlook | Tuesday, August 04, 2020

Wrong sized instances are significant contributors to wasteful expenditure on the cloud. Organizations must look to right-size their machine images during the development phase itself. This starts by defining elements and features that an application needs to run efficiently and discarding anything unnecessary

Fremont, CA: Cloud infrastructure has come a long way since its launch, playing a significant role in reducing costs and improving performance. However, organizations need to ensure that these technologies are correctly implemented, as poorly sized cloud instances and Virtual Machines (VM) can hit a company's budget hard and hamper the user experience. As a result, organizations have made it their priority to ensure proper optimization of their cloud environment. The elasticity of the cloud can be utilized by IT teams to acquire, change, and remove resources as needed. However, it isn't unusual for cloud-based loads to fluctuate, which means that a once-properly sized instance is suddenly too big or too small.

Right-sizing Cloud VMs for Better Performance and Lower Costs

Wrong sized instances are significant contributors to wasteful expenditure on the cloud. Organizations must look to right-size their machine images during the development phase itself. This starts by defining elements and features that an application needs to run efficiently and discarding anything and everything unnecessary. Organizations should try to adjust their configuration parameters and VM memory size, as in most cases, memory resources are over-allocated.

Finding the right-sized VM also involves choosing the right instance type. Organizations need to select between reserved, on-demand, and preemptible instance types. Reserved instances such as AWS Reserved Instance and Azure Reserved VM Instance are available at all times and are most suited for applications that are running continuously. On-demand instances are suitable for most applications and are free from long term contracts, however, with a risk of delay. The only way to know if the decision is right is through testing, which will also help in finding the best cost-performance balance.

Do not over Provision Public Cloud Capacity

While navigating through the cloud, traditional enterprise IT teams must alter their mindset to ensure that the organization does not overestimate resource use. By using capital-intensive, on-premises deployments, IT teams can spend considerable time determining their compute needs ahead of time, so they don't get stuck with the wrong machine size. By leveraging cloud instances, organizations can change, test, and resize instances at will; however, they will also need to monitor and evaluate usage to thwart overspending continually.

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