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Choose SQL Server on Azure Local when the workload needs to run on infrastructure in your organization’s environment; choose SQL Server on Azure VMs when it should run in Azure but still needs VM and operating-system control. The right choice depends on where the workload must run and who will operate its infrastructure, not just on SQL Server features.
What is the difference between Azure Local and Azure VMs?
Both options run SQL Server in virtual machines, rather than using Azure SQL Database or Azure SQL Managed Instance. The main distinction is where the VM infrastructure runs and which team operates it.
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Microsoft describes SQL Server on Azure Local as running SQL Server on Windows Server or Linux VMs in the organization’s own infrastructure. Azure Local offers connected and disconnected deployment modes, but their prerequisites and management capabilities differ. Check the requirements for the specific mode and deployment before deciding that it will meet operational needs. Microsoft’s Azure Local overview describes the product and its modes.
SQL Server on Azure VMs runs SQL Server on Azure-hosted virtual machines. It retains guest operating-system control and the familiar SQL Server environment while using Azure VM infrastructure. SQL Server VM images and the SQL IaaS Agent extension can provide portal management and optional features such as automated backup and patching; those capabilities depend on configuration, so do not assume they are active by default. See the SQL Server on Azure VMs overview.
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How do the options compare?
| Decision area | SQL Server on Azure Local | SQL Server on Azure VMs |
|---|---|---|
| Infrastructure location | Customer-owned infrastructure in the organization’s environment; useful where local data placement or proximity is important. | Microsoft Azure-hosted infrastructure; useful when the workload belongs in Azure. |
| Connectivity and management | Connected and disconnected deployment modes are available, with mode-specific prerequisites and management capabilities. | Cloud-hosted design; assess the network paths and service dependencies the application needs. |
| Infrastructure operations | The organization is responsible for local capacity, maintenance, support planning and lifecycle operations. | Azure provides the VM infrastructure; the customer still configures and operates the guest OS and SQL Server. |
| SQL Server and OS control | SQL Server runs in VMs within the local Azure Local environment. | Guest OS control is a core reason to select SQL Server on Azure VMs. |
| Availability and recovery | Windows Server failover clustering can protect VMs, while SQL Server availability groups can add database-level high availability. Backups require a chosen tool and recovery plan. | Plan SQL Server high availability and database backups on the VM. Azure VM tooling and Azure Backup can support configured scenarios; confirm support for the edition, OS, region and topology. |
| Cost and licensing | Include hardware, local operating costs, support and applicable Azure Local and SQL licensing for the deployment. | Include SQL licensing, VM compute, OS, storage, backup and applicable I/O charges. |
| Migration | Plan data movement, compatibility, downtime and the transition to operating local infrastructure. | Possible approaches include lift and shift or database migration; the suitable method depends on the source and the migration constraints. |
These options do not by themselves promise a particular recovery time, cost, performance level or migration outage. Those outcomes depend on the workload and its design.
Which option fits your workload?
Choose Azure Local when location or proximity is a requirement
Azure Local is a candidate when data needs to remain near local users or systems, when low-latency proximity matters, or when governance or connectivity constraints favor infrastructure operated in the organization’s environment. Establish whether connected or disconnected mode fits the deployment’s management and operating requirements before committing.
Choose Azure VMs when the workload should run in Azure
Azure VMs are a candidate when the workload is intended to move to Azure but the application still needs control of its VM guest OS and SQL Server environment. Plan guest OS and SQL Server administration, security, backup and availability rather than treating those responsibilities as automatically handled by the VM service.
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For an existing SQL Server application, compare the target SQL Server and operating-system versions with the source, identify feature dependencies, and establish how much application change and downtime are acceptable. Microsoft’s migration overview for SQL Server to Azure VMs identifies scale, migration speed, code-change support, version needs and downtime as factors in choosing an approach. Lift and shift and database migration are distinct routes, not interchangeable labels.
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How should you compare availability and recovery?
Start by defining recovery time and recovery point objectives for the application, then map the failure domains the design must survive. On Azure Local, Microsoft describes VM-level protection through Windows Server failover clustering and database-level high availability through SQL Server availability groups. Backups may use Microsoft Azure Backup Server or partner tools; a backup tool is not a substitute for a tested restore and disaster-recovery plan. See Microsoft’s Azure Local workload resiliency guidance.
For SQL Server on Azure VMs, design the SQL Server availability configuration and database backup approach for the actual edition, operating system, region and topology. Azure tooling can support configured scenarios, but neither the hosting option nor a product name alone establishes a recovery guarantee. Include backup retention, restore testing and a recovery location in the design.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How should you compare cost and licensing?
Do not compare only VM compute prices. Azure VM estimates should account for SQL Server edition and licensing, VM size, operating system, storage, backup and applicable I/O charges. SQL Server on Azure VMs can use pay-as-you-go licensing or Azure Hybrid Benefit for eligible SQL Server Standard or Enterprise licenses with Software Assurance. Eligibility depends on current terms and the organization’s licenses. Microsoft also notes that the portal’s displayed VM-size estimate may omit SQL Server licensing for paid editions. Use the SQL Server on Azure VMs pricing guidance and current pricing tools to model the actual configuration.
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallFor Azure Local, include the hardware purchase or ownership costs, support, local operations and the applicable Azure Local and SQL licensing. A defensible total depends on the specific infrastructure and licensing position; do not assume either option is cheaper without comparing the same workload, availability design and accounting period.
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What should you validate before implementation?
- For Azure Local: validate the hardware and connectivity model, deployment mode, capacity, support, patching and lifecycle responsibilities with the team that will operate the environment. Microsoft describes prevalidated hardware solutions as part of Azure Local’s positioning; confirm current hardware and deployment requirements in the official documentation. Azure Local and Windows Server comparison.
- For Azure VMs: size the VM and storage for the workload, and confirm how SQL Server licensing, guest OS operations, backup, security and availability will be configured.
- For either target: verify SQL Server and OS compatibility, application dependencies, network access, migration method, cutover window, backup retention and a tested recovery procedure.
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