Cloud and DevOps examples

Phased Azure cloud migration case study

A SaaS company needed more room to scale than its local data center could provide. Transcendent planned a staged Azure migration that kept legacy systems operating while applications and data moved incrementally.

Cloud and DevOps Case Studies engagement context

Client case study

Moving a growing SaaS platform to Azure without a big-bang cutover

See how Transcendent Software moved a SaaS platform from a local data center to Azure through a staged hybrid migration that preserved legacy operations.

Engagement

The business problem and technical context

Situation

A SaaS company expected significant business growth, but its applications were hosted in a local data center. The estate included Windows Services, a website and blog, and a very large shared database that constrained scaling.

Business constraint

The company needed cloud capacity without taking every legacy system offline at once, and the new operating model still had to make financial sense.

Why this approach fit

A phased migration reduced cutover risk. A VPN between the data center and Azure allowed cloud applications to feed the existing warehouse while dependent legacy systems remained online.

Data and systems involved

Windows Services, a website and blog, a large on-premises data warehouse, Microsoft Azure WebJobs, Azure App Service, Azure SQL, application-specific databases, and a VPN connection.

Transcendent's role

Transcendent Software assessed the application estate, designed the hybrid transition, converted workloads, separated databases, and migrated the system one application at a time.

Delivery

Approach

  1. 01

    Establish secure connectivity between the data center and Azure

  2. 02

    Convert Windows Services to Azure WebJobs and move the website to App Service

  3. 03

    Create dedicated Azure SQL databases while continuing to supply the legacy warehouse

  4. 04

    Move dependent systems incrementally, then use reserved Azure instances to control cost

Outcome

The system moved to Azure through staged transitions, and reserved cloud capacity helped reduce ongoing hosting costs.

What this engagement demonstrates

Cloud modernization can improve scalability and lower hosting cost while preserving operational continuity through an intentionally hybrid migration period.

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