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Workload fit Capacity and cost Migration and operations route Cloud

Migration Plan from On-Premises Infrastructure to the Cloud

A guide to the discovery, prioritization, security and cost management steps of moving from on-premises infrastructure to the cloud.

Published by: AnatoliaCore Technical Editorial Team

On-premises inventory and dependency analysis

A server list on its own is not a migration inventory. Application, database, storage, network, DNS, identity, external services, licensing, data volume, business owner and permitted downtime should be collected in the same workload record.

Building a wave plan for cloud migration

For each workload, a retain, retire, rehost, replatform or refactor decision is written down with its rationale. Directly dependent components are kept in the same wave, and the pilot wave should be representative as well as low-risk.

Balancing cost, security and governance

The target cost estimate includes storage, data transfer, backup, logging, connectivity and licensing in addition to compute. Identity, network, policy, security, budget and ownership standards in the landing zone are prepared before the workloads arrive.

Post-migration operations checklist

The short checklist below is a practical field reference for on-premises to cloud migration projects:

Control AreaExpected Output
InventoryWorkload, owner, dependencies and data
TargetStrategy, landing zone and cost
WavePilot, cutover, communication and rollback
AcceptanceFunctionality, performance, security and business owner

Pilot, Cutover and Rollback

The rollback plan should be a separate, executable scenario, not a by-product of the cutover. The decision point, the permitted data difference, how long the source environment is kept and the reconciliation steps after a rollback should be approved before the migration window.

The pilot test measures functionality, performance, data integrity, monitoring, backup and cost. For cutover, data synchronization, DNS, user communication, the maintenance window and the rollback trigger are written down.

Post-Migration Acceptance Test

After migration, not just server start-up is verified but also application transactions, integrations, permissions, logging, backup, performance and business owner acceptance. Decommissioning the source environment requires a separate approval.

Related Service Pages

To turn this guide into a project, review the service pages below.

Technology Perspective

Microsoft product families, use cases and technology selection considerations are covered on our related technology page.

Microsoft Details

Quote and Contact

You can schedule a technical pre-assessment call to scope the work for your organization.

Verify with the official documentation

Plan your cloud migration as a lifecycle of strategy, readiness, adoption, governance and operations.

Microsoft Cloud Adoption Framework