Cloud infrastructure as a service (IaaS) has been more popular among companies today due to its low-cost and high adaptability. With the help of this platform, modern enterprises are freed from the need to maintain their own IT systems. Its primary function is to move infrastructure away from on-premises data centers and onto private and public clouds.
It has seen explosive popularity as a form of cloud computing that offers virtualized computer resources via the internet, and the concept is closely associated with serverless computing. In this article, we will provide you with a comprehensive overview of Infrastructure as a Service (IaaS), explaining how this technology service can help your company expand and thrive.
Infrastructure as a Service: The Basics
IaaS is a cloud computing service that delivers virtualized computer resources via the internet. Customers can access a range of computing resources such as servers, storage, and networking and run and administer operating systems and applications via IaaS providers.
Customers can scale up or down their resources as required, eliminating their need to invest in and manage their physical infrastructure. Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform are IaaS providers (GCP) examples.
How Does IaaS Work?
IaaS necessitates using an off-site cloud provider, which end users can connect to either through the dashboard of the cloud platform or via an application programming interface (API).
Users might have the choice to select between a public cloud and a private cloud, based on the provider. In a private cloud, the information technology (IT) infrastructure is entirely devoted to the requirements of a single client.
Users who log into the IaaS console receive access to the provider's computing resources. With these resources, they can do things such as install computer systems and middleware on their virtual machines (VM), end up making backups of their data storage, and adjust the effectiveness of their applications, among other things.
IaaS systems also allow customers to orchestrate and automate critical processes, such as load balancing and other similar activities. i.e., dividing the workload over several servers so that no one server becomes overwhelmed by the amount of work it must do.
Defining The IaaS Structure
The following is a list of the primary components commonly included in an Infrastructure as a Service (IaaS) architecture.
This layer provides virtualized resources and abstracts the underlying physical hardware. These resources, which include virtual servers, storage, and networking, can be accessed and controlled through the internet. Users are given the ability to scale their resources up or down depending on their needs.
Cloud Management Layer
This layer offers the tools and interfaces necessary for administering the virtualized resources, such as a control panel accessible through the web or an application programming interface (API). Users can design, configure, and administer their virtualized resources with the assistance of this layer.
This layer is responsible for providing a connection between virtualized resources and the internet. It can include load balancers, firewalls, and several other networking components to guarantee the availability and safety of the virtualized resources.
Block storage, file storage, and object storage are all examples of the types of storage provided by this layer for virtualized resources. This layer oversees ensuring that data is always both durable and accessible.
Physical Infrastructure Layer
This is the underlying layer of the data center that the IaaS provider offers, which consists of the actual servers, storage, and networking. Users do not have direct access to this layer since the IaaS provider normally maintains it.
Infrastructure as a service often has the above broad design. However, this might change based on the individual provider and their services.
Difference Between IaaS Vs. SaaS Vs. PaaS
Cloud computing services include Infrastructure as a Service (IaaS), Software as a Service (SaaS), and Platform as a Service (PaaS). However, they vary in the amount of control and resources provided to the customer.
IaaS is the most fundamental kind of cloud computing service. It delivers internet-based virtualized computer resources such as servers, storage, and networking. This enables users to scale up or down their resources as required, eliminating the need to invest in and manage their physical infrastructure. Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform are IaaS providers (GCP) examples.
SaaS is based on IaaS and gives consumers access to software applications hosted and managed by the SaaS provider. These programs are web-based and accessible over the internet. Salesforce, Office 365, and Gmail are all examples of SaaS.
PaaS is a platform that lets customers design, operate, and administer their online applications and services. It is built on top of IaaS. Databases, programming languages, and development frameworks are common tools and services provided by PaaS providers to enable customers to build, test, and deploy their applications. Heroku, AWS Elastic Beanstalk, and Google App Engine are examples of PaaS.
IaaS offers infrastructure, SaaS offers software, and PaaS offers a platform for developing and delivering software applications. Each service level builds on the one before, providing additional functionality and simplicity. The service used is determined by the organization's unique needs and requirements.
Common IaaS Use Cases
There are a wide variety of applications for Infrastructure as a Service (IaaS), but the following are some of the more typical ones:
- Web and application hosting – IaaS makes it possible for businesses to host and operate online applications and services with ease, including e-commerce websites, content management systems, and customer relationship management (CRM) systems.
- Backup and disaster recovery – IaaS providers often provide disaster recovery services, which make it possible for businesses to keep backup copies of their data on the cloud if an outage or natural catastrophe occurs.
- Big data processing – IaaS gives organizations access to the computational capacity and storage space required to handle massive volumes of data. This can benefit companies operating in retail, healthcare, and the financial sector.
- Test and development – Organizations can use IaaS to build up test and development environments, enabling businesses to test new apps and services before putting them into production. This is possible because organizations can use IaaS to set up test and development environments.
- Remote working – Providing access to virtualized resources and apps that employees can access remotely is one of how IaaS can facilitate remote working.
- Gaming and streaming services – Organizations can use IaaS to support gaming and streaming services by providing the required resources to enable these services to be operated and scaled according to the requirements of the gaming and streaming services.
- IoT – IaaS can serve IoT devices because it can provide the required resources to process and store the data produced by these devices.
- Machine Learning and AI – IaaS can support machine learning and artificial intelligence applications since it provides the resources required to run and train models.
These are some of the more typical applications for infrastructure as a service. Still, due to its adaptability, organizations can utilize IaaS in various ways to meet multiple business requirements.
Benefits of IaaS to the Business World Today
The following are some of the benefits that businesses are availing via IaaS:
- Enhanced Security – To guarantee the safety of the data they handle, most IaaS companies put considerable resources into IT security procedures. End-to-end encryption, numerous authentication methods, and stringent access rules to data center locations are just a few of these safeguards.
- Scalable and Flexible Infrastructure – Infrastructure as a service allows enterprises to scale up or down in response to fluctuating demand quickly. This adaptability allows for swift reactions to new circumstances that can arise inside a company.
- Improved Continuity And Disaster Recovery – Service uptime guarantees from CSPs can reach 99.999%, according to service-level agreements (SLAs). Disaster recovery solutions made possible by IaaS can help firms maintain more stringent RPOs and RTOs than they would be able to with on-premise infrastructure.
- Significant Cost Savings – With IaaS, companies save money on networking and hardware gear maintenance costs. They are also spared the burden of paying for yearly or monthly subscriptions to IT services they have little or no intention of ever using.
- Backup and Data Recovery – In a natural catastrophe or a power outage, many IaaS providers also provide disaster recovery services, whereby businesses can keep offsite backups of their information. Thanks to this, the availability and integrity of an organization's data can be guaranteed when facing a catastrophic incident.
The Bottom Line: Businesses are Scaling with IaaS
IaaS allows companies to remotely access their IT infrastructure from any place in the world. Because of this, the network operator is in a better position to deliver more availability. The facilities are spread out among several different locations, which helps to eliminate any single points of failure.
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