Where should your firm host its applications? The answer should reflect the software you rely on, how your people access it and what it takes to operate it reliably. For a firm built around Microsoft technologies, Azure is often a strong place to begin the evaluation. But the provider is only one part of the decision. Hosting region, application support, data location and connectivity can matter just as much to daily performance. A successful cloud plan brings those choices together before migration, rather than treating the network as something to add after the servers move.
Start with the application and its dependencies
Inventory what each business-critical application needs. That may include Windows Server, SQL Server, file shares, authentication services, document integrations and scheduled processing.
Ask the vendor which deployment models it supports, whether the application needs a dedicated server and whether its database can run on a managed service. Confirm supported versions, access methods and recovery procedures.
A vendor-hosted service may reduce the amount of infrastructure your firm operates. A supported virtual-machine deployment may be more appropriate for an existing application with specific requirements. Choose a hosting model that meets the application's needs before deciding which provider supplies it.
Why Azure deserves consideration for a Microsoft-based firm
If your firm relies on Windows Server and SQL Server, Azure offers a practical migration path to evaluate. Existing Microsoft administration experience can also influence how your team operates the environment.
Eligible Windows Server and SQL Server licensing may qualify for Azure Hybrid Benefit. Microsoft specifies qualifying subscription licenses or licenses with active Software Assurance; eligibility and savings depend on the applicable terms and deployment. [1]
That makes Azure worth comparing on technical fit, operating effort and total cost. It does not establish that Azure will always be faster or cheaper. A firm using Microsoft 365 should still evaluate the requirements of the applications it plans to host. Microsoft 365 subscriptions do not by themselves establish eligibility for Windows Server or SQL Server licensing benefits.
Microsoft workloads are also possible outside Azure. AWS documents Windows Server images that include SQL Server. [2] Your selection should reflect the supported configuration and measured outcome, rather than assuming one software brand requires one infrastructure provider.
Compare the complete operating model
Use these questions for Azure, AWS, Google Cloud or a vendor-managed service. A Microsoft-heavy environment is a reason to evaluate Azure seriously; the application and operating requirements should determine the final choice.
| Decision | What your firm should confirm | Why it matters |
|---|---|---|
| Application support | Vendor-approved platform, versions and deployment model | Protects supportability and reduces migration surprises |
| Identity and access | How accounts, permissions and administrator access will work | Supports consistent access management |
| Performance | Results from representative user tasks under realistic load | Tests the experience staff will actually receive |
| Licensing and cost | Compute, storage, software, support and data-transfer costs | Avoids comparing incomplete monthly estimates |
| Recovery | Backup, restore and regional failure procedures | Establishes how the firm will recover essential services |
| Connectivity | Routes, capacity, redundancy and remote access | Connects hosting decisions to daily use |
| Operations | Who patches, monitors, resolves incidents and manages changes | Makes responsibilities explicit |
Choose a region using distance and measurement
Physical distance can increase latency. A region closer to your primary users may improve responsiveness, especially when applications require frequent exchanges. Microsoft also advises checking regional service availability, pricing, capacity and resilience capabilities. [3]
For a firm with most staff in California, test suitable western US regions using its actual office circuits and approved remote-access paths. Do not assume the nearest point on a map provides the fastest route for every office.
Measure representative work: opening a matter, saving a document and completing a report. Compare typical results and slower results during busy periods. Evaluate remote users and branch offices separately.
Keep frequently communicating application and data components close where practical and supported. Published Azure inter-region latency statistics can help assess dependencies across regions, but they do not measure a particular user's complete connection to the application. [4]
Data residency requirements and disaster recovery may also affect placement. Treat a production region and a recovery region as separate design decisions. A nearby primary environment still needs a tested recovery plan.
Hybrid cloud depends on suitable connectivity
Hybrid cloud combines environments, such as office systems and cloud-hosted applications, that work together. For systems that need private network communication, the connecting path must support their traffic and security requirements.
Two common Azure options are a site-to-site VPN and ExpressRoute. A VPN sends encrypted traffic over the public internet. ExpressRoute provides private connectivity through a provider without using the public internet for that path. [5]
VPN is not the only way to build a hybrid environment. Dedicated connectivity is another option, and some application integrations use authenticated, encrypted connections to public service endpoints rather than extending an entire private network.
Google Cloud likewise offers Cloud VPN and Interconnect options. [6] The principle is to choose the connection for the workload, not to prescribe a VPN for every hybrid design.
Compare VPN and dedicated private connectivity
These are planning scenarios. Validate the chosen configuration with representative traffic before relying on it for production.
| Option | Useful evaluation scenario | What to check |
|---|---|---|
| Site-to-site VPN | An office needs encrypted access to private cloud resources using existing internet connectivity | Traffic volume, internet-path variability, gateway capacity and redundancy |
| Individual remote access | Staff or administrators need controlled access from outside the office | Identity controls, device requirements, user routes and supported applications |
| Dedicated private connection | Sustained traffic or business-critical dependencies justify a private provider path | Circuit costs, provider reach, latency, encryption needs and failure scenarios |
| Primary connection plus backup path | The firm needs continued access when its main path fails | Route changes, backup capacity and application behavior during failover |
Private connectivity and encryption are different properties. Microsoft states that ExpressRoute traffic is not encrypted by default. Apply supported encryption appropriate to the design and the information being transmitted. [7]
Connectivity cannot repair every application design
Consider a fictional firm that moves a case-management application to Azure while leaving its database in the office. Every database interaction now depends on the office-to-cloud path. A dedicated circuit may make that path more consistent, but it does not make the database local to the application.
If supported by the vendor, hosting the application and database together may reduce the dependency on repeated network trips. Alternatively, a supported remote application or desktop model may keep processing near the data while giving users controlled access.
Map these dependencies before deciding what stays in the office. A hybrid arrangement works best when the placement is deliberate and the connecting services are sized and operated accordingly.
Include resilience and total cost before committing
Test what happens when a connection fails. A second circuit is useful only if routing, access and application behavior allow work to continue. Establish who monitors the links and who coordinates incidents across the office network, connectivity provider and cloud environment.
Compare costs for the full design: application infrastructure, storage performance, backups, licensing, VPN gateways or circuits, data transfer, support and migration effort. Estimate busy-period requirements instead of comparing only the cheapest available server.
Run a pilot with a representative group, confirm vendor support, test restore and connectivity failure procedures, and document acceptance criteria. Choose the design that delivers supported applications, usable performance and clear operational ownership.
Allnext Legal helps law firms select cloud hosting, plan hybrid connectivity and manage the environment around their applications, users and business requirements.
Sources
- Microsoft — Azure Hybrid Benefit and licensing eligibility
- AWS — Windows Server images with SQL Server
- Microsoft — Select Azure regions
- Microsoft — Azure network round-trip latency statistics
- Microsoft — Plan hybrid connectivity with VPN and ExpressRoute
- Google Cloud — Hybrid connectivity options
- Microsoft — Encryption for ExpressRoute
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