IaaS: Cloud-based infrastructure for rent

Featured Image

3 min read

IaaS has become the norm for many companies who prefer scalable infrastructure services at lower costs - but what does it really mean to use Infrastructure-as-a-Service?


  1. IaaS: Definition
  2. Private, Public & Hybrid Cloud
  3. Why do I need IaaS? 

IaaS: Definition

IaaS is short for "Infrastructure-as-a-Service" which basically translates to cloud-based IT-infrastructures that can be rented depending on specific requirements. As such, IaaS replaces the often expensive and resource-intensive on-premise servers that used to make up the main computer network of any company.

The different IaaS Cloud models

Private Cloud

A very dedicated cloud server that is not shared with other users. The company has full control over their specific "cloud" and does operation on their own (although even there it is possible to use managed services if needed). A private cloud is mostly used for sensitive data and business-critical operations due to the higher control over the entire cloud environment.

The cloud-advantages of scalability and easy use without installation or maintenance are also part of the private cloud.

Public Cloud

Cloud services that are being shared with different users/companies. This doesn't mean that they can look into each other's systems and data but rather that they use from the same resource pool. Public cloud services are quite often more affordable, however, if one user has a high peak of usage, this might affect the performance of the other user's resources.

Public clouds are probably the most popular cloud models. Google services or the Microsoft Office 365 environment are public cloud services.

Hybrid Cloud

Often used is the hybrid cloud model, which allocates sensitive and critical processes and data into a private cloud environment and the rest to a public cloud. This way, companies can be secure and flexible where it counts. A key basis for this combination is the combination of clear processes and structured data to make sure that sensitive or critical data stays in the private cloud.

Why do I need IaaS?

Back to overview

Less is more (and if you want more, you can scale)

IaaS is a huge step forwards to enable companies with processing and storage without high investments and long setup times for on-premise servers. The service model can decrease budget with pay-per-use models and it is much easier to scale down or up depending on use. Service and support is usually provided by the cloud vendor and even though it's always recommended to have an internal IT that collaborates with the vendor, this reduces overall workloads for your IT.

Lower risks 

A huge reason for IaaS services is the risk management. Most cloud services work with redundancies, to make sure that one failed server does not interrupt operations. Additionally, most services also have backups, which makes data recovery much easier in case of a security breach, server failure, etc.

higher security

Although for quite some time, companies feared that the cloud might be less secure, this is not the case if the company itself has security awareness and clear data structures.

In fact, the automatic updates ensure a much higher safety level without operative disruptions than the old-fashioned on-premise updates that took hours and usually meant that the IT team had to stay late at night or do it during weekends to ensure that operations were minimally impacted.

By the way, those automatic updates also mean that the cloud has longevity because vendors obviously want efficient, long-lasting hardware and software to provide better services. As such, cloud-based infrastructure usually is state-of-the-art, gets constant updates to fix not only bugs but also add new features and optimization.

Still unsure?

Our experts are happy to help you find the right solution for your company. We provide not only support with the evaluation but also with implementation, optimization and managed services.

Succeed in the Cloud

by Pavel Stoychev

Pavel Stoychev is an Engagement Manager CC Sales at DIGITALL. His main responsibilities in this position include business development, CRM, program management for big enterprise projects as well as leading virtual teams. Pavel has over 15 years of experience in the IT sector with strong expertise in the areas of engagement management, service architecture, pre-sales support, bid management, delivery management as well as IT infrastructure & cloud services. Before joining DIGITALL, he held Engagement Manager and Lead Solution Architect positions for big companies like Microsoft and Hewlett Packard.

6 min read

Relaxed at work: 5 simple things to lift your mood

In autumn and winter, the decrease in sunlight - which affects the "happiness hormone" serotonin -...

3 min read

Expert interview: Cyber Security Trends & topics for 2023 and 2024

We sat down with our Cyber Security expert Deniz Tourgout to talk about current and future trends...

3 min read

The future in AI: facts and stats about artificial intelligence

What does the future of artificial intelligence bring and how are companies currently dealing with...