AWS DynamoDB

Global tables

Amazon DynamoDB global tables are a fully managed, multi-Region, and multi-active database option that delivers fast and localized read and write performance for massively scaled global applications.

• replicate your DynamoDB tables automatically across your regions
• eliminate the difficult work of replicating data between regions and resolve update conflicts
• ideal for massively scaled applications with globally dispersed users

Capacity mode

• Provisioned: manage and optimise your costs by allocating read/write capacity in advance
  • auto scaling:
    • dynamically adjusts provisioned throughput capacity on your behalf in response to actual traffic patterns
    • you specify the minimum and maximum capacity units and target utilisation
• On-demand: Simplify billing by paying for the actual reads and writes your application performs

Backup

• PITR (Point-in-time recovery)

  • provides continuous backups of your DynamoDB data for 35 days to help protect against accidental write or delete operations
  • provides up to 35 days of recovery points at a per second granularity

• On demand backups

  • creates full backup of your table
  • cannot be copied to a different region or account

• Scheduled backups (AWS Backup)

  • makes it easy to centralise and automate data protection across AWS services, in the cloud and on premises
  • policy-base backup: you can create backup policies (backup plans) to define your backup requirements and then apply to the AWS resources
  • cross-account/cross-region backup: you can copy backups to different AWS regions/accounts on demand automatically as part of the backup plan