Azure Stack HCI
Hyperconverged infrastructure (HCI) solutions
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What is Azure Stack HCI
Azure Stack HCI is a Microsoft hyperconverged infrastructure platform that combines Windows Server-based compute with software-defined storage and networking, delivered as a subscription and deployed on validated hardware from OEM partners. It targets organizations running virtualized workloads, remote/branch sites, and edge deployments that want on-premises infrastructure with optional integration to Azure services. The product uses Hyper-V and Storage Spaces Direct and is managed through Windows Admin Center and Azure-based management services. It differentiates by aligning on-prem HCI operations with Azure identity, monitoring, update management, and hybrid services.
Tight Azure hybrid integration
Azure Stack HCI integrates with Azure for registration, billing, and optional management and monitoring capabilities. It supports hybrid scenarios such as centralized governance, Azure Arc-enabled services, and Azure-based backup/DR options depending on configuration. This can reduce tooling fragmentation for organizations already standardized on Microsoft cloud services. It also enables consistent identity and policy approaches using Microsoft ecosystem components.
Windows Server and Hyper-V stack
The platform is built on Windows Server technologies, including Hyper-V virtualization and Storage Spaces Direct for distributed storage. This can be advantageous for teams with existing Windows Server, Active Directory, and Microsoft virtualization skills. It supports common Windows guest workloads and integrates with Microsoft management tooling. Licensing and operational alignment can be simpler for Microsoft-centric environments than adopting a separate virtualization stack.
Broad validated hardware choices
Azure Stack HCI is offered through a catalog of validated nodes and integrated systems from multiple hardware partners. This provides flexibility in selecting form factors (including compact edge systems) and procurement channels. Hardware validation helps standardize configurations for supportability and lifecycle management. Buyers can choose between different performance and cost profiles without being limited to a single appliance vendor.
Azure dependency for full lifecycle
Azure Stack HCI requires Azure registration and uses subscription-based licensing, which introduces ongoing cloud dependency even for on-prem deployments. Some management experiences and value-added capabilities are tied to Azure services, which may not fit disconnected or highly regulated environments. Organizations must plan for Azure tenant governance, identity, and network access requirements. This can add complexity compared with fully self-contained HCI stacks.
Windows-centric virtualization focus
The solution centers on Hyper-V and Windows Server, which may be a constraint for organizations standardized on other hypervisors or seeking a hypervisor-agnostic HCI layer. Feature parity and ecosystem integrations can differ from platforms built around alternative virtualization stacks. Migrating existing clusters from other hypervisors can require tooling, planning, and potential downtime. Operational processes may need adjustment if teams are not experienced with Microsoft virtualization.
Partner hardware and support coordination
Deployments typically involve Microsoft software plus OEM hardware, which can create shared-responsibility boundaries for troubleshooting. Support experiences can vary by hardware partner, firmware baselines, and driver qualification. Hardware lifecycle, BIOS/firmware updates, and compatibility matrices require ongoing attention to stay within validated configurations. This can be more operationally involved than single-vendor integrated appliances with unified support.
Plan & Pricing
Pricing model: Pay-as-you-go (billed monthly per physical processor core on the host)
Free tier/trial: Azure Local (formerly Azure Stack HCI) — 60-day free trial after registration (host software includes a built-in 60-day trial).
Example costs:
- Host service fee (Azure Local / Azure Stack HCI) – $10 per physical core per month (pay-as-you-go).
- Windows Server subscription (optional add-on for unlimited Windows Server guest licensing) – $23.3 per physical core per month (optional; price shown on Microsoft pricing page).
Discount/options:
- Azure Hybrid Benefit: customers with Windows Server Datacenter licenses and active Software Assurance (or eligible license exchange) can apply Azure Hybrid Benefit to waive the Azure Local host service fee and the Windows Server subscription for guests.
- Enterprise/custom pricing and partner-validated hardware solutions: contact Microsoft sales or partners for quotes and bundled offers.
Notes: Prices are billed based on the number of physical processor cores in a registered cluster and are calculated daily and billed monthly. Region, agreement type, and currency/exchange rates may affect final prices. Official pricing pages indicate price variability and recommend contacting sales/requesting a quote.
Seller details
Microsoft Corporation
Redmond, Washington, United States
1975
Public
https://www.microsoft.com/
https://x.com/Microsoft
https://www.linkedin.com/company/microsoft/
