Cloud Rightsizing is the Key to Keeping IaaS Spend In Check

In our recently published eBook 4 Economic Benefits of Hosted Private Cloud, we highlighted the differences between a hosted private cloud and an on-premise private cloud, and the leading ways the hosted model can be a huge help to an organization’s IT budget.  

In this blog, let’s explore one of those benefits in further detail – Rightsizing Enables Optimal Resource Utilization.  If you haven’t had a chance to read the eBook, download it for free it using the form below.

What is Cloud Rightsizing?

Despite the progress of virtualization, IT departments deploying infrastructure on premise or in public clouds still have to walk a fine line between deploying too many servers and deploying too few.

The majority of public cloud deployments are generally used for applications where user demand peaks and falls at certain times of the day, month or year.  

The peaks and valleys of resource usage is where the dilemma of over-sizing infrastructure comes into play leading to significant idle capacity and unnecessary bloat to IT budgets. This is especially true of AWS Reserved Instance users, who paid up front for full capacity.

So how does rightsizing in private clouds work? It’s all about provisioning the resources your applications need, rather than paying for an arbitrary instance size. This resource-pool based model provides predictability (you pay the same rate every month), without sacrificing the scalability of the cloud To determine those resources, follow these steps:

Establish Business Drivers and Goals

A prerequisite to rightsizing an application is understanding the bigger picture. What business problems is the project intended to solve? Are there specific KPIs for the project?  What service levels do your users expect? When launching a new infrastructure project or moving applications to the cloud, having a clear understanding of what success looks at the beginning of the project before moving on to assess applications, cloud platforms and service providers is key.

There is no one-size-fits-all, but there are several factors that should be considered during the solution and design stage that will provide optimum performance and predictable costs while ensuring headroom for growth or special projects.

Picking the Right Platform Based on Application Needs

The needs of a specific application should drive the business decision to deploy new workloads or existing on-premises workloads in the cloud.

Assessing your application resource consumption characteristics is a key step in avoiding costly over-provisioning of resources, enabling you to free up capital to fuel innovation and grow the business.   

  • Legacy applications with consistent, predictable CPU, RAM and network performance requirements are ideal for a hosted dedicated private cloud environment.
  • Mission critical applications that require significant CPU, RAM and network bandwidth are also great candidates for a hosted dedicated private cloud solution.
  • Applications that have significant variable computing resource usage, do not require physical isolation of data for security purposes or smaller deployments that cannot justify dedicated hardware are a good fit for a hosted virtual private cloud.

Architecture and Design

Once you’ve assessed the applications, it’s time to look at the architecture and design required to support them in a cloud environment. For example, when moving legacy or mission-critical applications to the cloud, the ability to customize compute, storage and network components to suit the needs of the application is particularly important.

  • Some mission-critical and many legacy applications are based on a complex architectural design requiring a fair amount of customization to ensure optimal performance.
  • If there are regulatory requirements (PCI DSS, HIPAA, Sarbanes-Oxley, etc.), full isolation with dedicated infrastructure is a must.
  • Any one or a mix of these characteristics, makes a dedicated hosted private cloud solution from SingleHop a great choice.

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Business Drivers and Goal Evaluation

You’ve assessed the resource characteristics of your applications and the architecture required to support them. Now let’s revisit the business goals you set out to achieve at the beginning.  Will the environment achieve short term and long term goals? Is there a practical and sustainable plan to scale up if needed? How will KPIs be measured over the short and long term?

Controlling costs is one of the greatest challenges facing IT and Finance managers today. The cloud, by nature, makes it easy to spin up new environments and resources that can cost thousands of dollars each month. Hosted private clouds allow resources to be rightsized, minimizing waste and solving a 1:1 app to instance problem often found in public cloud deployments.

The Cloud Architects at SingleHop are experts in helping clients assess applications and rightsizing solutions. We’d love to hear from you. Get Started with a Free Private Cloud Architecture Consultation and Migration!

eBook: 4 Economic Benefits of Hosted Private Cloud

In this free eBook: What is hosted private cloud, when to use it, and its four major economic benefits.

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Wendy L Williams
Wendy L Williams
Product Manager, Private Cloud

Wendy is product manager for Private Cloud at SingleHop and is responsible for Dedicated Private Cloud and Virtual Product Cloud services and solutions. Wendy brings to the SingleHop team years of experience in IT, ranging fr...READ MORE

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