Mainframe Optimization with Rehosting

Seamless transition from your mainframe environment to the cloud.

Mainframe modernization supports your transformational journey that bridges old and new to create greater value from longstanding IT investments, on or off the mainframe.

While the mainframe is a platform of choice for enterprises that rely on computing power and stability, its legacy technology and software requirements are complex and expensive to maintain. FNTS has decades of mainframe expertise and is ready to assist with your mainframe modernization or exit strategies, by seamlessly migrating legacy applications from your mainframe environment to a contemporary Azure or private cloud model.

By performing data manipulation and extracting data to the cloud utilizing enhanced tools and integration methods, FNTS and its expansive partner network can rehost, refactor and replatform your legacy applications.


When combining Mainframe-as-a-Service (MFaaS) with a rehosting strategy you will benefit from:

Provide a bridge between your current state and the cloud to optimize overall costs for modernization efforts.

Unlock innovation, agility and long-term operational savings through improved performance and a reduction in total cost of ownership (TCO). Save 70-80% (on average) with refactoring and replatforming strategies.

Allow your current mainframe staff to focus on future state vs day-to-day operations.

Remediate resource and staffing risk.

Save 15-20% (on average) moving to a MFaaS model.

We will help design the architecture and deployment in Azure.

FNTS specializes in helping you create and execute a MFaaS model as part of the rehosting phase. This provides a bridge until FNTS and our expansive partner network can refactor or replatform the applications in Azure.

Modernization Strategy



Management of your entire mainframe environment remotely at FNTS’ secure data center.


Rehosting often referred to as a “lift-and-shift migration”, this option doesn’t require code changes and ensures your existing mainframe applications are managed and fully available. Shifts the workload to the cloud at the lowest cost. You can use it to quickly migrate your existing applications to the cloud.

Refactoring and Replatforming

Refactoring and Replatforming provides 100% automated code transformation and data conversion to a cloud environment, ensuring business continuity. Converting applications to newer code allows organizations to innovate and stay competitive. They also can leverage the latest technology and software development approaches, including Agile, DevOps, business intelligence, artificial intelligence, machine learning, the Internet of Things and more.


Once you’ve determined your Mainframe Modernization strategy for your organization’s digital transformation, FNTS will partner with you to accomplish the following:

  1. Detailed analysis of your existing environment
  2. Define a transformation plan
  3. Develop a business case
  4. Design your architecture and deployment
  5. Facilitate your mainframe transformation with the least amount of disruption and risk



Want to learn more about our Mainframe-as-a-Service?

Now is a great time to evaluate the cost of IT labor to determine how FNTS can augment your team and enable employees to shift into more business focused roles.

Let's Connect


The FNTS Advantage.

FNTS supports any generation of mainframe environments, including Windows, Linux, AIX and IBM i operating systems.

Leveraging FNTS can provide business continuity and 24/7 support to ensure technical and operational coverage during all shifts, which can be achieved at a fraction of the cost of having a full-time, on-site team.

As a trusted advisor in managed IT services for almost 30 years, FNTS provides an exceptional customer experience. We consistently achieve high service ratings from customers, have an above-average customer retention rate of 97%, and are proud to say 70% of our customers come from referral sources.


Is your data protected and accessible if disaster strikes?

FNTS provides Disaster Recovery as a Service (DRaaS) in secure public and hybrid cloud environments for full data restoration and replication services for fail-over in the event of natural or human-made disasters.

Disaster Recovery Services

Technology Partners
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