"Move to the cloud" has become the default advice for any business still running local servers or on-premise software. And for most small businesses, the advice is correct. But the how matters far more than the whether, and a botched migration can be worse than not migrating at all.
This guide walks through the real decisions you'll face, in the order you'll face them.
Step 1: Inventory What You Actually Have
Before you can plan a migration, you need to know what you're migrating. Most businesses underestimate how much they have because data sprawls across devices and systems over time.
Create an inventory that covers:
- File storage: Shared drives, NAS devices, local hard drives, USB backups. How much data total? What's actively used vs. archived?
- Applications: What software does your team use daily? What's installed locally vs. already web-based? Are there desktop-only apps (like specialized accounting software or industry tools) that don't have cloud equivalents?
- Email: Where is email hosted now? How much historical email do you need to preserve?
- Databases: Any line-of-business applications with databases? CRM systems, inventory management, custom tools?
- Hardware: Servers, firewalls, switches, printers that rely on local network resources.
This inventory is the foundation of every decision that follows. Skip it, and you'll discover critical systems you forgot about halfway through the migration.
Step 2: Decide What Moves and What Doesn't
Not everything should go to the cloud. This is where a lot of generic "cloud migration" advice breaks down. Some specific considerations:
- Large file workflows (video editing, CAD, large datasets) may perform poorly in the cloud due to upload/download speeds. These often work better with a hybrid approach: local storage for active projects, cloud backup for finished work.
- Legacy applications that require a Windows server may need to move to a cloud-hosted virtual machine rather than a SaaS replacement. This is more complex and more expensive than moving to a native cloud app.
- Compliance requirements may dictate where certain data can be stored. Healthcare (HIPAA), financial services, and government contractors all have specific rules about cloud storage.
- Printer and device dependencies sometimes require a local server or print server. Don't assume you can eliminate all on-premise infrastructure.
The realistic outcome for most small businesses is a hybrid environment: most things in the cloud, with a few things remaining local for practical reasons.
Step 3: Choose Your Cloud Platform
For most small businesses, the primary decision is between Microsoft 365 and Google Workspace for productivity and email. This is where you'll spend most of your cloud budget, and it affects everything else.
Beyond the productivity suite, you may also need:
- Cloud file storage beyond what's included in your productivity suite (OneDrive, SharePoint, or Google Drive)
- Cloud-hosted servers on Azure or AWS if you have applications that need dedicated infrastructure
- SaaS replacements for on-premise software (e.g., QuickBooks Online instead of QuickBooks Desktop)
Avoid the trap of moving to the cloud for its own sake. Every service you add is a monthly cost that compounds. A 20-person company paying for 5 different cloud services at $10-30 per user per month adds up fast.
Step 4: Plan the Migration Sequence
The biggest mistake in cloud migration is trying to do everything at once. A phased approach reduces risk and gives your team time to adapt.
A typical sequence for a small business:
- Email first (1-2 weeks). This is usually the lowest-risk, highest-value migration. Move email to Microsoft 365 or Google Workspace. Migrate historical email in batches.
- File storage second (2-4 weeks). Move shared drives to SharePoint/OneDrive or Google Drive. This takes longer because you'll need to clean up folder structures, set permissions, and train people on the new workflow.
- Applications third (varies). Replace or migrate line-of-business applications one at a time. Each one is its own mini-project with its own training needs.
- Server decommission last (after everything is confirmed working). Don't shut down the old server until you've verified everything is working in the cloud and you've kept a backup for at least 90 days.
Step 5: Handle the Human Side
This is where most migrations actually fail. The technology works, but people resist the change because they weren't prepared for it.
- Communicate early and often. Tell your team what's changing, why, and when. Give them specific dates, not vague timelines.
- Train before the switch, not after. Even 30 minutes of hands-on training before go-live prevents hours of frustrated support calls afterward.
- Identify your power users. Every team has 2-3 people who adapt quickly to new technology. Get them on board early and let them help their colleagues.
- Expect a productivity dip. The first two weeks after a major change are always slower. Plan for it. Don't schedule a cloud migration the week before a major deadline.
Step 6: Secure the New Environment
Moving to the cloud doesn't automatically make you more secure. In fact, a misconfigured cloud environment can be less secure than a well-managed local server. After migration:
- Enable multi-factor authentication on all cloud accounts
- Configure sharing policies (who can share files externally, who can't)
- Set up data loss prevention rules if your platform supports them
- Enable audit logging so you can see who accessed what
- Review admin access: not everyone needs global admin privileges
Common Pitfalls to Avoid
Underestimating internet bandwidth. If your office has a 50 Mbps connection shared by 20 people all accessing cloud files simultaneously, things will feel slow. Upgrade your internet before the migration, not after.
Forgetting about offline access. What happens when the internet goes down? Make sure critical files are available offline through OneDrive sync or Google Drive's offline mode.
Ignoring the cost trajectory. Cloud costs are recurring. That $12/user/month for Microsoft 365 Business Premium across 30 users is $4,320/year, every year. Compare that honestly against one-time server costs plus maintenance.
No rollback plan. Always keep your old systems running (even in read-only mode) for at least 30-90 days after migration. If something goes wrong, you need a way back.
The best cloud migration is the one your team barely notices. That takes planning, not speed.
Planning a cloud migration?
River Mountain Systems handles cloud migrations for small businesses every month. We'll assess your current setup, recommend the right approach, and manage the entire process so your team stays productive.
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