Scenario 5: Windows-based infrastructure modernization
As Windows Server workloads approach end-of-support or hardware refresh cycles, organizations need a strategic approach to infrastructure modernization. This scenario provides a framework for assessing, migrating, and optimizing Windows workloads on AWS, enabling automated management, improved security, and operational efficiency while maximizing existing Microsoft investments.
Characteristics
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Lifecycle management: Strategic approach to Windows Server modernization focusing on end-of-support deadlines and hardware refresh cycles, incorporating assessment tools and migration planning to optimize timing and resource allocation.
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Migration strategy: Systematic workload evaluation and migration approach using tools like AWS Application Migration Service (MGN) and AWS Migration Hub, enabling both migration and modernization paths based on workload requirements.
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Infrastructure optimization: Implementation of AWS automation for Windows Server management, including patching (AWS Systems Manager), monitoring (Amazon CloudWatch), and infrastructure provisioning (AWS CloudFormation), reducing operational overhead.
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Security enhancement: Integration of AWS security services with Windows Server security features, implementing improved access controls, network security, and compliance monitoring while maintaining existing security policies.
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Cost management: Optimization of Windows Server licensing and infrastructure costs through right-sizing, automation, and AWS pricing models (Reserve Instances, Savings Plans), while using existing Microsoft licensing benefits like BYOL.
Reference architecture
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AWS Application Migration Service (MGN) facilitates block-level migration to Amazon EC2. It allows synchronization and transition of servers to EC2, regardless of their original location (on-premises or elsewhere).
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AWS Migration Hub serves as a centralized platform for efficiently planning and managing your migration process, offering a comprehensive overview of your migration projects.
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Amazon CloudWatch provides robust monitoring capabilities for Windows-based servers and workloads, enabling real-time tracking and analysis of performance metrics.
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AWS License Manager streamlines the management of third-party licenses, helping organizations maintain adherence and optimize license utilization across their AWS environment.
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AWS Systems Manager automates various aspects of operating system management, including but not limited to inventory tracking, patching, and other essential maintenance tasks, enhancing operational efficiency.
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AWS Backup provides centralized protection for Windows-based workloads by automating backup processes, enabling consistent data protection, and offering secure storage of backups across multiple AWS services and resources.
Configuration notes
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Initial assessment and planning: Establish migration readiness using AWS Migration Evaluator, Migration Hub, and Application Discovery Service. Implement security best practices and define migration waves based on deadlines, dependencies, and compliance. Troubleshoot by monitoring agent health and reviewing logs.
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Migration setup and execution: Use AWS Application Migration Service for workload migration. Configure replication settings and prepare the target environment. Test with non-production workloads first. Monitor replication lag and network throughput, and verify connectivity for troubleshooting.
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Monitoring and management configuration: Set up CloudWatch for performance metrics, Systems Manager for patch management, and License Manager for tracking. Implement security controls, use parameter store for configurations, and enable audit logging. Configure backup and recovery procedures for comprehensive system management.
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Cost optimization and compliance: Optimize costs and maintain adherence using License Manager, Cost Explorer, and budget alerts. Implement auto scaling and scheduled resource management. Regularly review instance sizing and conduct compliance assessments. Establish procedures for license consolidation and non-compliance responses.
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Configure AWS Backup to provide centralized data protection for Windows workloads across AWS services. Set up backup policies with appropriate retention periods and scheduling. Implement automated backup monitoring through CloudWatch and establish recovery time objectives (RTOs). Regular backup testing and validation maintains business continuity and disaster recovery readiness.
