this exam domain focuses on Migration which is a huge topic by its own, below I have added some links with thoughts on new topics in this domain and other topics already covered in previous blogs.

Domain 3: Migration of SAP workloads to AWS

Homogeneous migration of SAP workloads to AWS.

Use the same OS, SAP software, and database software on the source and target

Heterogeneous migration of SAP workloads to AWS.

Change in any of (operating system platform – SAP software version – database platform)
Can be migrated using SAP Classical Migration or SUM-DMO or any 3rd party tool

Links

Tools and methodologies available to you for your SAP system migration
Prescriptive Guidance: SAP on AWS migration methodology

SAP Migration methodologies

SAP can be migrated to AWS using backup and restore method or CDP or Hana System Replication
Backup and restore thoughts

• Backup files can be copied to S3 using VPN or direct connect
• for large backup files think of other options to speed up data transfer AWS Storage Gateway, AWS DataSync, and AWS Snow Family.
  • AWS DataSync data movement
• Reduce downtime by replicating changes via different waves of incremental backup and transfer
• best for Small databases

Continuous Data Protection thoughts

• AWS MGN or AWS SMS or any 3rd party tool
• Application Migration Service (MGN) utilizes continuous, block-level replication and enables short cutover windows measured in minutes. Server Migration Service (SMS) utilizes incremental, snapshot-based replication and enables cutover windows measured in hours.
• Agent-based
• Automating SAP migrations using CloudEndure Migration
• Migrating SAP Workloads to the AWS Cloud with AWS SMS
• SAP Disaster Recovery Solution Using CloudEndure: Part 1 Failover
• Automating SAP migrations using CloudEndure Migration
• SSM Patch Manager features

HANA System Replication thoughts

• Optmimal approach is to migrate using native SAP HSR we can replicate SAP DB form source to target after creating it useing Launch Wizard for
• you can initialize migration using backup and restore then use HSR to sync final delta
• To save costs, you might choose to stand up a smaller EC2 instance type

3.1 Determine the optimal migration approach for SAP workloads to AWS.

• Homogeneous migration process and heterogeneous migration process
• Target SAP environment architecture (operating system, database, and application)
• SAP interfaces and integration
• Data migration tools
• Data transfer options o DNS and AWS networking services (for example, Direct Connect, Site-to-Site VPN, Route 53)
• AWS storage services (for example, Amazon Elastic File System [Amazon EFS], Amazon FSx, Amazon S3)
• AWS compute services (for example, Amazon EC2) o AWS directory services specific to SAP workloads on Windows

3.2 Perform a homogeneous migration of SAP workloads to AWS

• Migration process methodologies for homogeneous migration (for example, backup and restore, database replication, block level replication)
• AWS data transfer services (for example, AWS Snowball, AWS DataSync, S3 Transfer Acceleration)
• DNS and AWS networking services (for example, Direct Connect, Site-to-Site VPN, Route 53)
• AWS storage services (for example, Amazon EFS, Amazon FSx, Amazon S3)
• AWS compute services (for example, Amazon EC2)

3.3 Perform a heterogeneous migration of SAP workloads to AWS.

• Migration process methodologies for heterogeneous migration (for example, SAP export/import with Software Provisioning Manager (SWPM), Software Update Manager – Database Migration Option (SUM-DMO) with System Move, third-party vendor tools)
• AWS data transfer services (for example, Snowball, DataSync, S3 Transfer Acceleration) o Migration from anyDB to SAP HANA
• DNS and AWS networking services (for example, Direct Connect, Site-to-Site VPN, Route 53, DNS)
• AWS storage services (for example, Amazon EFS, Amazon FSx, Amazon S3)
• AWS compute services (for example, Amazon EC2)

3.4 Optimize the migration of SAP workloads.

• Migration process methodologies
• Data transfer optimization
• Network optimization
• AWS networking services (for example, Direct Connect, Site-to-Site VPN, Route 53)
• AWS storage services (for example, Amazon EFS, Amazon FSx, Amazon S3)
• AWS compute services (for example, Amazon EC2)
• AWS automation tools (for example, Launch Wizard, CloudFormation, Systems Manager)