The SME Cloud Migration Guide

Why Migrate to the Cloud?

Cloud computing offers scalability, resilience, and cost efficiency that traditional on-premises infrastructure simply cannot match. For SMEs, the cloud levels the playing field, providing access to enterprise-grade technology without enterprise-scale budgets.

Phase 1: Assessment

Before migrating anything, you need a clear picture of your current environment:

• Inventory all applications, services, and data stores
• Classify workloads by criticality and complexity
• Identify dependencies between systems
• Assess current costs (hardware, licences, electricity, staffing)
• Define your compliance and data residency requirements

Phase 2: Planning

With your assessment complete, plan the migration:

• Choose the right cloud model: public, private, or hybrid
• Select your cloud provider(s): Azure, AWS, or Google Cloud
• Decide your migration strategy for each workload: rehost, refactor, replace, or retire
• Design your target architecture, including networking, security, and identity
• Create a detailed timeline with milestones and rollback plans

Phase 3: Execution

Execute the migration in waves, starting with low-risk workloads:

• Migrate non-critical workloads first to build confidence
• Run parallel environments during transition periods
• Test thoroughly before decommissioning on-premises systems
• Communicate changes to users with adequate training

Phase 4: Optimisation

Migration is not the end — it is the beginning of continuous optimisation:

• Monitor performance and costs from day one
• Rightsize resources based on actual usage data
• Implement tagging and cost allocation
• Review and optimise quarterly