Cloud migration

Cloud

Most companies existed for a long time without cloud integration, so AWS helps with cloud migration / having a hybrid environment

• Key Migration services
  • migration hub, application migration service, db migration service, datasync, transfer family, snow family
• Key Hybrid Cloud Computing Services
  • outposts, snow family, ecs/eks anywhere, storage gateway, DataSync & transfer family, systems manager

• Example Scenario
  • You have a company not in the cloud yet but has its own infrastructure where it runs its own workloads. This company may want to move to the cloud for cloud advantages
  • All their applications must now run on cloud services
  • Can be very complex

Challenges

• diagram
• Workloads must not be interrupted during migration
• Estimate the expected costs as soon as you have an idea of how your cloud infrastructure could look like
• Some workloads (code) may need adjustment to run correctly
• Bonus
  • Some (or even all) workloads could be updated/rewritten to fully embrace AWS services and cloud benefits
  • Ex) You can AWS SDK to communicate with those services

Solutions

• diagram
• Migrate step-by-step
  • migrate individual servers or basic workloads, then continue step by step
  • u can carefully test things
  • AWS Migration Hub, Application Migration Service, Database Migration Service, etc
• Hybrid cloud
  • Use AWS & On-premises side-by-side during the migration period (if you like this setup, u can stick to it forever too)
  • You must connect AWS services to on-premise workloads & infrastructure
  • Storage Gateway, outposts, direct connect, vpn, etc
• Monitor & analyze the migrated services & workloads
  • AWS monitoring & cost management services
  • CloudWatch, Cost explorer, budgets, etc

Key Migration Services

• diagram

Migration Hub

• Gives central place of tracking overall migration process
• make sure everything’s working as intended - gives visibility

Application Migration Service

• an automated server application migration
• replicates your local settings to the cloud (EC2 instances )
• u install a software (agent) on your local systems, it analyzes the environment → looks at the software, configs, the code, the OS, then replicates that automatically to the cloud

Database Migration Service

• Helps with migrating data from a local database to an AWS database
• able to do homo- and hetero- geneous migrations
• can convert db schemas if needed (can change structure)

DataSync

• Synchronizes (copies) data in your local data center into the cloud
• Able to connect with EFS, S3, or FSx there (and NOT EBS)
• Locally, use NFS to connect to those remote file systems/services

Transfer Family

• Allows to map (S)FTP endpoints to S3 or EFS
• Maybe your local servers use (S)FTP to upload files to local servers

Snow Family

• set of services
• Physical devices for moving data and/or performing compute tasks (at the edge)
• AWS ships to you → store data → send back to AWS → AWS move the data into the data center
• family
  • Snowcone
    • 2 sizes: 8TB (HHD)/14TB (SSD)
  • Snowball Edge
    • Storage Optimized (80TB) / Compute Optimized 39.5TB
  • Snowmobile
    • 100PB of storage
• makes sense if you have too large amounts of data / bad connection / security reasons etc
• The services (discontinued.. https://aws.amazon.com/snowball/)
  • AWS Snowcone
  • AWS Snowball
  • AWS Snowmobile

Key Hybrid Cloud Computing Services

• diagram

ECS/EKS Anywhere

• Tools and APIs that allow ECS,EKS to run on local infrastructure

Storage Gateway

• Allows you to extend cloud storage to cloud infrastructure
• Extending S3 to your local file system

Remaining

• Snow family (mentioned earlier)
• DataSync & Transfer family (mentioned earlier)
• Outposts
• Systems Manager (not limited to cloud infrastructure)
  • if you download the systems manager agent on one of your local servers, you can also manage that server with systems manager