Information Technology - IT Infrastructure

Information Technology - IT Infrastructure is defined broadly as a set of information technology components that are the foundation of an IT service; typically physical components, but also various software and network components. The term IT Infrastructure is defined in ITIL as a combined set of hardware, software, networks, facilities, etc. (including all of the information technology related equipment) used to develop, test, deliver, monitor, control, or support IT services. Associated people, processes, and documentation are not part of IT Infrastructure.

What is ITIL?

ITIL is a globally recognized, world-leading framework for IT Service Management - ITSM, and increasingly for overall Service Management that delivers business value.

What’s new in ITIL 4?

Now in its fourth iteration, released in winter 2019, ITIL 4 provides the guidance you need to address new Service Management challenges and utilize the potential of modern technology in an era of Cloud Computing, e.g., Public Cloud, Private Cloud, Multi-Cloud, and Hybrid Cloud, in addition to Edge Computing, Agile, DevOps, DevSecOps, ITOps, NetOps, GitOps, CloudOps, Internet of Things - IoT, Industrial Internet of Things - IIoT, Internet of Medical Things - IoMT, and Digital Transformation.

The key components of the ITIL 4 Framework are the ITIL Service Value System - SVS and the four dimensions model.
The ITIL Service Value System

The ITIL Service Value System provides - ITIL SVS is a flexible operating model for the creation, delivery, and continual improvement of services.

The core components of the ITIL SVS are:

  • The ITIL Service Value Chain
  • The ITIL Practices
  • The ITIL Guiding Principles
  • Governance
  • Continual Improvement

ITIL Four Dimensions

The Four Dimensions describes a balanced focus to the ITIL SVS through a holistic and effective approach.

The Four Dimensions are:
  • Organizations and People
  • Information and Technology
  • Partners and Suppliers
  • Value Streams and Processes

These components are a significant evolution of ITIL from previous iterations. From a specific focus on delivering services to the broader perspective of the value created by the products and services delivered to the customer. ITIL 4 is designed to provide a seamless transition from an organization’s existing investment in ITIL and its current way of working, to a faster, more flexible, more agile approach.

Who uses ITIL?

Large, Medium, and Small organizations all over the world use ITIL to help them improve the value of their services. ITIL helps organizations in all industries and sectors to:

Solve business issues
Improve IT capability
Implement new capabilities that directly provide business value

Benefits and advantages of ITIL 4

Organizational benefits of adopting ITIL 4 include:
  • Faster and more flexible service delivery practices to support digital transformation
  • Better strategic alignment between IT and the business
  • Smoother integration between evolving software delivery practices and the enterprise customer support framework
  • Improved service delivery and customer satisfaction
  • Reduced costs through improved use of resources
  • Greater visibility of IT costs and assets
  • Better management of business risk and service disruption or failure
Information Technology Infrastructure
Information Technology Infrastructure

Components of IT Infrastructure

What are the components of IT infrastructure?

  • Hardware includes servers, Datacenters, personal computers, routers, switches, and other equipment.
  • The facilities that house, cool, and power a Datacenter could also be included as part of the infrastructure.

Software refers to the applications used by the business, such as web servers, content management systems, and the Operating System - OS. The OS is responsible for managing system resources and hardware, and makes the connections between all of your software and the physical resources that do the work.


Interconnected network components enable network operations, management, and communication between internal and external systems. The network consists of internet connectivity, network enablement, firewalls and security, as well as hardware like routers, switches, and cables.

Information Technology Infrastructure
Information Technology Infrastructure

Types of IT infrastructure

Traditional infrastructure

With a traditional infrastructure, the components—like Datacenters, Data Storage, and other equipment—are all managed and owned by the business within their own facilities. Traditional infrastructure is often thought of as expensive to run and requires large amounts of hardware, like servers, as well as power and physical space.

Cloud infrastructure

Cloud infrastructure describes the components and resources needed for cloud computing. You can create a private cloud by building it yourself using resources dedicated solely to you. Or you can use a public cloud by renting cloud infrastructure from a cloud provider like Alibaba, Amazon, Google, IBM, or Microsoft. And by incorporating some degree of workload portability, orchestration, and management across multiple clouds you can create a hybrid cloud.

Hyperconverged infrastructure

Hyperconverged infrastructure allows you to manage your compute, network, and data storage resources from a single interface. With software-defined compute and data storage bundled together, you can support more modern workloads with scalable architectures on industry-standard hardware.

Information Technology Infrastructure
Information Technology Infrastructure

IT Infrastructure Management

IT Infrastructure Management is the coordination of IT resources, systems, platforms, people, and environments. Here are some of the most common technology infrastructure management types:

OS management: Oversees environments running the same OS by providing content, patch, provisioning, and subscription management.

Cloud Management:

Gives cloud admins control over everything running in a cloud—end users, data, applications, and services—by managing resource deployments, use, integration, and disaster recovery.

Virtualization Management:

Interfaces with virtual environments and the underlying physical hardware to simplify resource administration, enhance data analyses, and streamline operations.

IT Operations Management:

Also known as business process management, this is the practice of modeling, analyzing, and optimizing business processes that are often repeated, ongoing, or predictable.

IT Automation:

Creates repeatable instructions and processes to replace or reduce human interaction with IT systems. Also known as infrastructure automation.

Container Orchestration:

Automates the deployment, management, scaling, and networking of containers.

Configuration Management:

Maintains computer systems, servers, and software in a desired, consistent state.

API - Application Programming Interface Management:

Distributes, controls, and analyzes the Application Programming Interfaces - APIs that connect apps and data across enterprises and clouds.

Risk Management:

Identifies and assesses risks and creates plans to minimize or control those risks and their potential impacts.