Modernizing a Nationwide Animal Hospital Network with Azure VMware Solution (AVS)

iLink helped the leading nationwide animal hospital network operating hundreds of veterinary clinics across the U.S. relied on aging on-premises ESXi servers. The fragmented hospital infrastructure caused maintenance challenges, operational silos, and growing risks to system availability. To modernize their foundation and improve resilience, the client sought a seamless migration path to the cloud without disrupting ongoing hospital operations or compromising patient care.

Industry

Veterinary Services

Company size

10K+ Employees

Headquarters

California, United States

Client Overview

The client is a large, nationwide network of animal hospitals providing veterinary care, diagnostics, and specialty services across multiple locations in the United States. With oa distributed footprint and a growing portfolio of digital systems, the organization depends heavily on reliable, secure, and scalable IT infrastructure to support daily clinical operations and deliver uninterrupted patient care.

Challenges

Heavy dependency on on-prem ESXi servers led to hardware failures, capacity constraints, and inconsistent management across locations.
Legacy database workloads required strict boot-order sequencing to ensure software compatibility.
Uptime was critical, any downtime could disrupt hospital operations and impact patient services.
The client needed a scalable and centralized cloud architecture to improve reliability, lower costs, and simplify IT management.

Solution

iLink designed and executed a zero-disruption migration strategy using Azure VMware Solution (AVS) and VMware HCX to modernize the client’s infrastructure.

Two-phase HCX migration:

Replicated VMs from each hospital’s ESXi host to a centralized AVS SDDC with no operational impact.
Performed planned after-hours cutovers to ensure a seamless switchover.

Application-aware boot logic: Ensured database-first startup in AVS for complete software compatibility.

Secure, scalable network design: Architected connectivity between hospital locations and AVS using Azure Virtual Network and ExpressRoute.

Centralized monitoring and governance: Implemented Azure-native visibility, logging, and policy controls for improved manageability.

Business Outcome

Zero-downtime migration of critical workloads from on-prem ESXi to AVS.

Significant reliability and scalability gains, reducing hardware dependency across sites.

Centralized IT management, improving operational efficiency for all hospital locations.

Preserved application integrity and performance, ensuring continuous patient-care operations.

Stronger cloud-ready foundation, enabling future modernization and cost optimization initiatives.

Conclusion

iLink enabled a seamless, zero-downtime migration to Azure VMware Solution, modernizing the client’s infrastructure and eliminating on-premise limitations. The organization now operates on a scalable, reliable, and centrally managed cloud foundation, ensuring stronger performance, improved efficiency, and uninterrupted patient care.

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