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Cloud Migration Fundamentals

1. Introduction

Cloud migration refers to the process of moving data, applications, and other business elements from on-premises infrastructure to a cloud-based environment. This process can enhance scalability, flexibility, and cost-efficiency.

2. Key Concepts

  • Cloud Computing: Delivery of computing services over the internet.
  • Infrastructure as a Service (IaaS): Cloud service model that provides virtualized computing resources over the internet.
  • Platform as a Service (PaaS): Cloud computing model that provides a platform allowing customers to develop, run, and manage applications.
  • Software as a Service (SaaS): Software distribution model in which applications are hosted by a service provider and made available to customers over the internet.

3. Migration Strategies

There are several strategies for migrating to the cloud, including:

  • Rehosting (Lift and Shift): Moving applications as-is to the cloud.
  • Refactoring: Modifying applications to better suit the cloud environment.
  • Revising: Re-architecting applications for enhanced performance.
  • Rebuilding: Recreating applications from scratch in the cloud.
  • Retiring: Decommissioning applications that are no longer needed.
  • Step-by-Step Migration Process

    
    graph TD;
        A[Assess Current Environment] --> B[Choose Cloud Provider];
        B --> C[Plan Migration];
        C --> D[Execute Migration];
        D --> E[Optimize and Monitor];
        E --> F[Review and Iterate];
                

    4. Best Practices

    Ensure a thorough assessment of current applications and workloads before migration.
    • Conduct a readiness assessment.
    • Establish clear goals and timelines.
    • Prioritize security and compliance.
    • Leverage cloud-native services for better efficiency.
    • Implement monitoring and management tools.

    5. FAQ

    What is cloud migration?

    Cloud migration is the process of moving data, applications, and other business elements from on-premise infrastructure to a cloud-based environment.

    What are the benefits of cloud migration?

    Benefits include increased scalability, flexibility, cost savings, and improved disaster recovery options.

    What are the different cloud service models?

    The main service models are IaaS, PaaS, and SaaS.