Why use Infrastructure as a Service in cloud computing? ​

August 25, 2025

Professional Services

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Many businesses struggle with the financial burden of over-provisioning physical servers and the constant pressure to predict future growth.

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Infrastructure as a Service in cloud computing

Many businesses struggle with the financial burden of over-provisioning physical servers and the constant pressure to predict future growth. What if you could eliminate the guesswork and massive upfront costs of buying IT hardware? What if your infrastructure could instantly scale up or down to meet demand, without a single phone call or purchase order? That’s the promise of Infrastructure as a Service (IaaS), a powerful cloud computing solution that solves these problems and more. 

The hidden costs of traditional IT infrastructure

To truly appreciate the power of IaaS, it helps to understand the problems inherent in managing physical hardware. Infrastructure teams often face immense pressure to make critical decisions about server and networking components without a clear picture of future growth and performance needs. This leads to several costly and complex issues, including:  

  • Over-provisioning and underutilisation: To be safe, IT teams often over-specify hardware, leading to expensive, powerful servers that sit idle for months or even years. This is a significant capital expenditure with no immediate return on investment 
  • Lack of flexibility: What happens if a project is cancelled? You’re left with a physical server that has no designated purpose, a sunk cost that provides zero value. Balancing physical infrastructure with dynamic project requirements is not only difficult but also introduces major scalability and flexibility issues 
  • High maintenance and management overhead: Managing physical hardware requires a dedicated team of IT resources. From handling a storage disk failure to ensuring adequate spares are on hand, this maintenance is costly and time-consuming. An unexpected hardware failure can mean tight deadlines and pressure to restore services, potentially impacting business operations 
  • Expensive disaster recovery (DR) solutions: Achieving a low Recovery Time Objective (RTO) often requires purchasing additional hardware as a warm standby with ongoing replication, effectively doubling your initial costs. This doesn’t even account for the resources needed for meticulous backup planning and management 
  • Additional software and monitoring costs: Sophisticated monitoring software is essential for tracking hardware performance, adding another layer of expense and complexity to your IT budget 

The power of Infrastructure as a Service in cloud computing

Infrastructure as a Service abstracts away the complexities of hardware management, empowering your team to be more agile and efficient. As a foundational layer of cloud computing, IaaS provides on-demand access to compute, storage, and networking resources. For a broader perspective, you can read our article on cloud computing: beyond the buzzword. 

Here's how IaaS addresses the shortcomings of traditional infrastructure:

  • Scalability and agility: With IaaS, you can provision and de-provision resources within seconds. As your application’s load increases or decreases, you can easily scale up or down, ensuring you only pay for what you use. This pay-as-you-go model eliminates the need for large, upfront capital investments 
  • Cost optimisation: “The need to identify upfront costs becomes a lot simpler,” says Clayton York, a senior cloud solutions architect. “You are now able to rather only pay for the load that you intend on using at that particular time.” This flexible model means if a project is cancelled, you can terminate on-demand instances immediately, with no long-term commitment. For long-running projects, you can take advantage of savings plans and reserved instances to secure significant discounts. For more on this topic, see our insights on cost optimisation through FinOps 
  • Reduced management overhead: The complexities of hardware maintenance are handled by cloud specialists in the background. “If there is a hardware failure on a cloud server, there is automated redundancy built into the cloud data centre hardware in the event of failure,” explains York. This built-in reliability allows your IT team to focus on innovation rather than maintenance. Our managed cloud services offer a comprehensive solution for this 
  • Enhanced disaster recovery and business continuity: IaaS makes sophisticated DR options accessible and affordable. You can easily configure your application to run across multiple cloud availability zones or even different regions, dramatically improving your recovery time objective. “Suddenly… many more DR options become easily accessible at your fingertips.” 
  • Simplified backup and monitoring: Cloud backup services are streamlined and cost-effective. You can set up a secure backup plan with just a few configurations, archiving data to different storage tiers based on cost and recovery needs. The days of managing tapes and offsite storage are gone. Additionally, comprehensive monitoring is built-in, providing a wealth of metrics on every service by default, making it simple to set up alerts and gain valuable insights 

Is Infrastructure as a Service right for your business?

  • While there are specific use cases for applications to remain on physical hardware, Infrastructure as a Service is the ideal solution for any application that: 

    1. Is critical to business operations 
    2. Needs to be highly available with a very low recovery time 
    3. Has an unpredictable load and requires scalability 
    4. Has an uncertain future and may be decommissioned 
    5. Needs to be secured with a robust backup plan and a low recovery point objective 

Ready to explore how IaaS can transform your business? Contact us today to learn how we can help you design and implement a tailored cloud strategy that drives efficiency, reduces costs, and prepares your business for the future.  

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