Migrations Flashcards
Describe Re-hosting migrations
Moving assets to a new host, make no changes. Eg: on prem mysql server to mysql on ec2
Describe Re-platform migrations
Move assets, change the platform. Eg: move on-prem mysql to RDS mysql
Describe Re-purchase migrations
Abandon existing infra, move to new. Eg: Move from on prem pgsql to Aurora mysql
Describe Re-architect migrations
Redesign infra to be cloud native. Eg: Create server less version of legacy app
Describe the Cloud Adoption Framework CAF
Framework of tech and business elements to consider when moving business to the cloud. Elements are Business, People, Governance, Platform, Security, Operations
What does AWS Server Migration Services enable?
Automatic migration of on-prem vSphere and Hyper-V VM’s to AWS. Replicates VM’s, syncs volumes, creates periodic AMI’s.
What is the Server Migration Connector
Virtual app for vSphere and Hyper-V to connect on-prem to AWS Server Migration Services
What does DMS Database Migration Services enable?
Migrating on-prem DB’s to RDS and EC2 db’s.
Would you use DMS for large databases?
No. DMS is for small and simple db’s that need to be migrated onto AWS
Would you use SCT for small databases?
No. SCT is for large/complex data sets like data warehouses
Can Server Migration Services minimize downtime during cutover?
Yes, by repeatedly syncing vm’s incrementally
How do you smoothly transition between VPN and Direct Connect?
Using BGP Routing