Cloud Migration and Solutions —
Westchester, NY
Moving your business to the cloud eliminates aging on-premises hardware, reduces IT overhead, and gives your team the flexibility to work from anywhere. Corstar plans and executes cloud migrations for Westchester businesses with zero data loss and minimal disruption.
End-to-End Cloud Migration for Westchester Businesses
Cloud migration isn't a single project — it's a series of distinct workloads, each requiring its own approach. Corstar has migrated servers, email platforms, file storage, line-of-business applications, and entire data centers for Westchester businesses of all sizes.
We're Microsoft Azure specialists and Microsoft 365 experts. Our team handles migrations from on-premises infrastructure to Azure, from legacy hosted platforms to Microsoft 365, and from local file servers to SharePoint and OneDrive — all with documented rollback plans and tested procedures.
Migration Types We Handle
- On-premises servers → Microsoft Azure VMs
- Email (any platform) → Microsoft 365 Exchange Online
- File servers and shared drives → SharePoint Online and OneDrive
- On-premises Active Directory → Azure Active Directory (Entra ID)
- Physical servers → Azure Virtual Desktop (AVD)
- Legacy backup solutions → Azure cloud backup
- Google Workspace → Microsoft 365
- Hosted / co-located servers → Azure IaaS
How a Cloud Migration Works — Step by Step
A successful cloud migration follows a structured process. Shortcuts cause data loss and downtime. Our methodology has been refined over hundreds of migrations.
Discovery & Assessment
We document your current environment — every server, application, dependency, and data location. This creates the foundation for a migration plan with no surprises.
Migration Planning
We design the target cloud architecture, size Azure resources appropriately, sequence workloads in the right order, and write the runbook — including rollback procedures for every phase.
Pilot Migration
Before moving production systems, we migrate a non-critical workload to validate the process, test performance, and confirm security settings. Issues discovered in the pilot are fixed before the main migration.
Production Migration
We execute the migration during a maintenance window — typically a weekend — following the documented runbook. Your team arrives Monday with everything working in the new environment.
Post-Migration Optimization
After cutover, we monitor the new environment closely, right-size Azure resources based on actual usage, and train your team on any new tools or workflows.
Ongoing Cloud Management
Migration is the beginning, not the end. We manage your cloud environment on an ongoing basis — cost optimization, security updates, capacity management, and support. See managed IT services →
What Cloud Migration Gives Westchester Businesses
Eliminate Hardware Costs
Stop buying, replacing, and maintaining on-premises servers. Pay for only what you use in the cloud — and scale up or down as your business changes.
Work From Anywhere
Cloud-based systems give your team access from any location on any device — without a VPN tunnel to aging on-premises infrastructure.
Enterprise-Grade Security
Microsoft Azure and Microsoft 365 include security capabilities that most small businesses couldn't afford to implement on-premises.
Built-In Resilience
Azure's globally distributed data centers provide 99.9%+ uptime SLAs — far beyond what an on-premises server room can achieve.
Scale Without Friction
Add users, storage, or compute in minutes. No hardware procurement, no rack space, no lead time — the cloud scales with your business.
Compliance-Ready
Azure and Microsoft 365 hold HIPAA, SOC 2, and ISO 27001 certifications — simplifying your compliance posture from day one.
Ready to Move Your Business to the Cloud?
We'll assess your current environment and build a cloud migration roadmap — no cost, no commitment.