Hyper-V Storage Expansion for Enterprise Data Center

Dell EMC Unity 380 Capacity Upgrade for Increased Hyper-V Storage and Business Continuity for North Carolina Water Authority

The Challenge: Critically Low Hyper-V Storage Capacity

This North Carolina-based water authority was approaching critical storage capacity limits within its Hyper-V infrastructure, creating operational risk for production workloads and future growth. The organization’s existing Dell EMC Unity 380 storage environment had reached 83% utilization, with several hosted LUNs operating at dangerously low free capacity levels. One critical LUN had only 4% remaining capacity, while others were nearing similar thresholds.

As storage consumption continued to increase, the water authority faced the possibility of degraded system performance, application disruption, and limitations on future virtual machine growth. At the same time, maintaining uptime for business-critical workloads was essential, making downtime or service interruptions unacceptable during any upgrade process.

The organization required a scalable Hyper-V storage expansion solution that would increase available storage capacity, expand existing LUNs, and preserve all active workloads and services without disrupting operations.

The Solution: Non-Disruptive Hyper-V Storage Expansion with Dell EMC Unity

Data Networks delivered a comprehensive Hyper-V storage expansion project designed to increase storage capacity while maintaining full availability of existing applications and services.

Working alongside the water authority’s IT administration team, Data Networks coordinated the installation and integration of five (5) new 1.8TB drives into the existing Dell EMC Unity 380 storage array. The additional drives increased the SAN’s raw storage capacity by approximately 9TB, providing the foundation for expanded storage pools and improved long-term scalability.

After installing the new drives, Data Networks expanded the existing storage pool to make the newly available capacity accessible to the Hyper-V environment. The team then expanded the hosted LUNs within the pool to support future workload growth while preserving all existing virtualized data and applications.

Key LUN expansions included:

• Increasing one production LUN from 6.72TB to 9TB
• Expanding additional LUNs from approximately 3TB to 4TB
• Increasing another LUN from 1.2TB to 1.8TB

These upgrades significantly improved available free capacity across the environment, increasing estimated available storage from critically low thresholds to healthier operational levels ranging from approximately 28% to 41% free capacity.

All work was completed without interrupting Hyper-V service availability, ensuring continuous access to business-critical applications throughout the expansion process.

The Outcome: Increased Capacity, Improved Stability, and Future Growth

Through this Hyper-V storage expansion, the water authority gained a more scalable and resilient storage environment capable of supporting ongoing infrastructure growth. By expanding the Dell EMC Unity 380 storage pool and increasing LUN capacity, Data Networks helped eliminate immediate storage constraints while improving operational stability.

The non-disruptive approach allowed the organization to maintain uninterrupted access to virtualized workloads and services during the upgrade, minimizing business risk and avoiding costly downtime. The expanded storage architecture now provides significantly greater flexibility for future workload growth and improved resource utilization across the Hyper-V environment.

With approximately 9TB of additional raw storage capacity added through the deployment of 5 new 1.8TB drives, the water authority now benefits from enhanced storage availability, improved infrastructure scalability, and a stronger foundation for long-term virtualization performance.

Tags: SLG, local, government, data center, datacenter