A Complete Guide to Cloud Migration Strategies and Multi-Cloud Architecture

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Organizations running on-premises infrastructure face structural challenges including high capital expenditure, rigid scaling, and single points of failure that cloud migration aims to resolve. Moving to the cloud shifts infrastructure costs from fixed capital expenditure to variable operational spending, with capacity scaling in minutes rather than months. A structured migration approach covers the full journey, from workload assessment using frameworks like the 7Rs to execution using AWS services such as Migration Hub, Application Migration Service, and Database Migration Service. Key AWS tools also include the Snow Family for offline data transfer, DataSync for continuous online transfer, and DMS for database migration. Beyond single-cloud adoption, the guide addresses multi-cloud design principles to help organizations avoid vendor lock-in and build more resilient architectures.

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