At the recent Nutanix .NEXT conference in Chicago, the University of Canberra detailed how its multi-year migration from legacy three-tier architecture to Nutanix hyperconverged infrastructure (HCI) slashed its on‑premises data centre footprint by roughly 70%. The dramatic reduction has freed up floor space, lowered power and cooling costs, and simplified daily operations for the IT team—all while delivering faster performance for critical workloads, including the university’s extensive Windows Server estate.
Speaking in a packed breakout session, Marcus O’Reilly, Director of Digital Infrastructure at the University of Canberra, walked attendees through the institution’s journey from an ageing silo‑based setup to a software‑defined, scale‑out platform. “We were running out of physical room in our main data centre, and the complexity of managing separate compute, storage and network tiers was consuming far too much of my team’s time,” O’Reilly explained. “With Nutanix, we collapsed everything into a single, intelligent appliance that scales linearly. The footprint savings alone were worth the investment—but the operational simplicity and disaster recovery improvements were what really won over our senior leadership.”
The university’s original environment consisted of multiple racks of fibre‑channel‑connected storage arrays, dozens of blade servers, and dedicated network switches—a classic three‑tier design that had grown organically over a decade. Provisioning new services could take weeks, capacity planning was guesswork, and failover tests were so cumbersome that they were rarely performed. Backup windows were creeping into business hours, and the rising energy bill was attracting the ire of the university’s sustainability committee.
Why the University Chose Nutanix
After evaluating VMware vSAN, Cisco HyperFlex, and a public‑cloud‑first approach, the internal cloud architecture group settled on Nutanix for four key reasons. First, its native Acropolis Hypervisor (AHV) eliminated the need for separate VMware licensing, which saved the university nearly $200,000 a year in software costs. Second, Nutanix Prism Central gave a single pane of glass to manage the entire cluster, even across two geographically separate data centres used for disaster recovery. Third, built‑in data protection—including snapshots, asynchronous replication, and full‑fledged Metro Availability—allowed the team to meet a recovery point objective of under a minute for tier‑one applications. Finally, the Nutanix partner ecosystem included deep integrations with Microsoft technologies, such as native support for Windows Server 2022 and SQL Server, which the university runs extensively for its student information system, finance platform, and research databases.
“We didn’t want to just lift and shift our infrastructure; we wanted to modernise it,” O’Reilly said. “Nutanix gave us a path that kept our Microsoft workloads running flawlessly while cutting the operational burden in half.”
The Footprint Reduction in Numbers
Before the migration, the university’s primary data centre housed 22 racks of equipment—a mix of Dell EMC storage, Cisco UCS blades, and Brocade switches. The migration, carried out in three phases over eighteen months, condensed all that gear into just seven Nutanix NX‑8150‑G8 nodes and a pair of top‑of‑rack switches per site. That 15‑rack difference translates directly into a 68% fewer physical racks, or roughly 130 square feet of reclaimed floor space that is now being repurposed for a high‑performance computing (HPC) cluster used by the Faculty of Science and Technology.
Power draw fell by 62%, from an average of 45 kW to just 17 kW, because the Nutanix nodes use low‑power Intel Xeon Scalable processors and efficient cooling. That drop alone will avoid an estimated AU$150,000 in electricity charges over the next five years. Cooling load dropped correspondingly, and the data centre’s power usage effectiveness (PUE) improved from a mediocre 2.1 to a much more respectable 1.4.
Windows Workloads Thrive on HCI
For Windows enthusiasts, the most relevant part of the story is how the university’s 400‑plus Windows Server VMs performed during and after the transition. The IT team used Nutanix Move to migrate live workloads from the old ESXi cluster to AHV with almost no downtime—in many cases, a single three‑second pause while the virtual machine switched hosts. Post‑migration, SQL Server queries on the student system returned in half the time, and the Active Directory domain controllers booted 40% faster thanks to the data‑locality algorithms that keep frequently accessed blocks on NVMe cache.
“Our Windows admins were a little nervous at first, because they’d lived in VMware for a decade,” admitted Sarah Turner, the university’s lead systems engineer. “But within a month they were converts. The Prism interface is so intuitive that even our junior staff can troubleshoot performance bottlenecks without having to dig through vCenter logs. And the one‑click firmware upgrades? That’s a game‑changer during semester when we can’t afford any downtime.”
Turner also highlighted Nutanix’s support for Windows Clustering and Failover Cluster Manager, which allowed them to preserve a handful of legacy applications that require shared storage. “We simply presented an iSCSI LUN via Nutanix Volumes, and the cluster saw it as a regular SAN target. No re‑architecture needed.”
Disaster Recovery That Actually Works
The university’s secondary data centre, located in a suburban campus building, was previously equipped with only a subset of the production environment. Critical systems were replicated using array‑based snapshots, but the recovery process was manual and error‑prone. After the Nutanix deployment, that same secondary site now runs a full‑size cluster that stays in sync via near‑synchronous replication with an RPO of 20 seconds. Full data centre failover—tested every quarter—takes under 15 minutes from the moment the green light is given, with all Windows services and Linux research systems coming up in a predetermined order.
“Last November we had a planned power outage for maintenance, and we flipped the entire datacentre over to the DR site in front of an audience of worried academics,” O’Reilly recounted. “Not a single student complaint. The helpdesk didn’t even know we’d failed over.”
The university also took advantage of Nutanix’s tight integration with Microsoft Azure. Non‑sensitive workloads such as the prospective student portal and the HR intranet are now replicated to Azure Site Recovery, giving a third tier of protection and a cost‑effective way to meet long‑term retention requirements. The cloud tier uses Azure’s Windows Virtual Desktop to deliver remote lab environments to students, a feature the university plans to expand in the coming year.
Sustainability and Future Plans
The 70% footprint reduction directly supports the University of Canberra’s ambitious goal to be carbon neutral by 2030. Fewer physical assets means less e‑waste, and the energy efficiency gains have already been reported in the university’s annual sustainability update. The IT department is now exploring Nutanix Era, the company’s database‑as‑a‑service layer, to automate patching and provisioning of the 130 SQL Server instances that underpin everything from student grading to research data lakes.
On the edge computing front, the university is piloting Nutanix Clusters on a small Kubernetes footprint to process IoT sensor data from its smart campus initiative. If successful, the same platform could soon run Windows IoT Core containers alongside Linux services, all managed through the same Prism interface.
“We’re not standing still,” O’Reilly said in closing. “The 70% footprint reduction was just the headline. The real story is that we’ve built a foundation that lets us deliver digital services as quickly as our teaching and research colleagues can imagine them. And for a modern university, that’s the ultimate success metric.”
Attendees of .NEXT walked away with a clear message: hyperconverged infrastructure is not just about consolidating tin; it’s about unlocking agility, resilience, and cost savings that traditional architectures simply cannot match. For Windows‑heavy shops like the University of Canberra, Nutanix has proved to be a robust, licence‑efficient platform that treats Microsoft workloads as first‑class citizens. As more education institutions face pressure to do more with less, the Canberra example offers a compelling blueprint—one that starts with a 70% smaller physical footprint and ends with a more responsive, sustainable IT estate.