Why Amazon DynamoDB Standard-IA?
The Amazon DynamoDB Standard Infrequent Access (DynamoDB Standard-IA) table class helps you reduce your DynamoDB costs by up to 60% for tables that store data that is infrequently accessed. The DynamoDB Standard-IA table class is ideal for use cases that require long-term storage of data that is infrequently accessed, such as application logs, old social media posts, ecommerce order history, and past gaming achievements.
The DynamoDB Standard-IA table class offers lower storage costs than the DynamoDB Standard tables, making it the most cost-effective option for tables with storage as the dominant table cost. The DynamoDB Standard table class offers lower throughput costs than the DynamoDB Standard-IA table class. DynamoDB Standard is your default table class and the most cost-effective option for the vast majority of workloads. To learn more about DynamoDB Standard-IA pricing, see the DynamoDB pricing page.
You can switch between DynamoDB Standard and DynamoDB Standard-IA table classes with no impact on table performance, durability, or availability and without changing your application code. For more information about using table classes, see the DynamoDB Developer Guide.