Benefits of Cloud Migration: Do They Outweigh the Cost?

Gilad David Maayan
Published 07/21/2023
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costs of cloud migrationCloud migration refers to the process of transferring digital assets such as data, applications, and IT resources from on-premises infrastructure to a cloud environment. This transition allows businesses to harness the power of public, private, or hybrid cloud services, resulting in increased flexibility, scalability, and cost-efficiency. Migrating to the cloud has become increasingly crucial for organizations seeking to stay competitive.


Key Benefits of Cloud Migration


Lower Infrastructure Costs

One of the most significant benefits of cloud migration is reduced infrastructure expenses. By moving applications and data storage off-premises, organizations can eliminate costs related to hardware maintenance and upgrades. Furthermore, many cloud providers offer pay-as-you-go pricing models, enabling companies to pay only for resources they actually use instead of over-provisioning on-premises servers.


Greater Scalability

The cloud’s ability to quickly scale up or down according to changing business needs is another advantage of moving workloads to the cloud. This adaptability allows organizations to save money and respond more effectively in times of high demand or sudden growth without being constrained by the limited resources of traditional IT infrastructures.


Increased Business Agility

Transitioning operations to the cloud provides increased agility due to its inherent elasticity, allowing teams to quickly provision new environments, test ideas, and innovate at a faster pace than previously possible with legacy systems alone. Moreover, it supports modern development practices like DevOps, continuous integration, and delivery (CI/CD), which further accelerate time-to-market for new products and services.


Simplified IT Management

Finally, cloud migration can streamline IT management by consolidating disparate systems and applications into a single platform. This centralization reduces the complexity of managing multiple vendors, software licenses, and hardware configurations. Furthermore, managed services offered by cloud providers can offload routine tasks such as patching or backups to their expert teams, freeing up internal resources for more strategic initiatives.



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What Are the True Costs of Cloud Migration?

Cloud migration is a complex process that involves various costs. Understanding the financial implications of transitioning to the cloud is essential for organizations to make wise decisions regarding their cloud journey and ensure they achieve maximum return on investment.


Infrastructure Costs

Migrating to the cloud requires organizations to invest in new infrastructure components such as servers and networking equipment. These investments can be significant but are often offset by reduced on-premises infrastructure requirements. Additionally, cloud providers like AWS and Azure offer flexible pricing models, allowing businesses to pay only for what they use.


Compute and Storage Costs

In addition to infrastructure costs, organizations must also consider compute and storage expenses when migrating to the cloud. Compute refers to the processing power needed for running applications, while storage involves data retention requirements like databases or file systems. The cost depends on factors such as usage patterns, performance requirements, and redundancy options chosen by an organization.


Data Transfer Costs

There are two types of data transfer costs to consider:

  • Ingress: Transferring data from on-premises environments to a public cloud usually incurs no fees; however, certain services might charge based on volume transferred or speed required during transfer operations.
  • Egress: Moving data out of a cloud environment can be more costly, as most providers charge for outbound data transfers. The cost of egress depends on the amount of data and its destination, whether it is another cloud provider or back to an on-premises location.


Professional Services Costs

Organizations may require assistance from external consultants or managed service providers during their migration journey. These professional services can include project management, architectural design, implementation support, and post-migration optimization.


Training and Education Costs

Migrating to the cloud often requires staff members to learn new skills or update existing ones. Organizations should budget for training courses, certifications, workshops, and other educational resources needed by their teams.


Compliance and Security Costs

To ensure compliance with industry regulations like GDPR or HIPAA in a cloud environment, organizations must invest in security measures such as encryption tools, access control systems, or cloud-specific security solutions. The costs associated with these investments vary based on specific requirements.


Calculating the ROI of a Cloud Migration

Calculating the Return on Investment (ROI) for a cloud migration involves determining both the costs of the migration and the subsequent benefits. This process helps businesses understand the value generated from their investment in the cloud.

Here is a high-level process to calculate ROI for a cloud migration:

Identify the Costs

  • Migration costs: Include the costs of planning, re-architecting, migrating, and validating the migrated systems. Also consider any required training and the cost of potential downtime during the migration.
  • Ongoing costs: These include the costs of cloud services (such as storage, compute, network transfer costs, etc.), operations, support, and maintenance. Also, take into account the costs of any third-party tools you’ll use for managing and monitoring your cloud environment.

Identify the Benefits

  • Cost savings: Calculate the cost savings resulting from not having to manage and maintain on-premises hardware and software. These savings can include reduced capital expenses, lower energy costs, decreased need for physical space, and fewer staff hours spent on hardware and software maintenance.
  • Revenue increase: Determine if the migration to the cloud can help increase revenue. This could be through new business opportunities, faster time to market due to improved agility, or improved customer experience due to better performance or availability.
  • Productivity gains: Cloud migration often leads to improved productivity due to better resource availability, scalability, and flexibility. Try to quantify these benefits in terms of hours saved or output increased.
  • Risk mitigation: The cloud can provide improved security and compliance capabilities, and more robust disaster recovery. If these reduce your risk of a security incident or data loss, try to quantify that in monetary terms.

Calculate ROI

Finally, you can calculate the ROI using the following formula:

ROI = (Total Benefits - Total Costs) / Total Costs * 100%

Keep in mind that both costs and benefits can occur over different time frames. Costs are often upfront, while benefits accrue over time. This can make the ROI of a cloud migration negative in the short term but positive over the longer term. Therefore, it’s crucial to consider the timeframe over which you’re calculating ROI.


Disclaimer: The author is completely responsible for the content of this article. The opinions expressed are their own and do not represent IEEE’s position nor that of the Computer Society nor its Leadership.