Architecture details

This section describes the components and AWS services that make up this Guidance and the architecture details on how these components work together.

AWS services in this Guidance

AWS service	Description
Amazon S3	Core. Stores inventory and archives transferred from the Amazon Glacier service.
Amazon Glacier	Core. Maintains the vault being transferred to the Amazon S3 service.
Amazon DynamoDB	Core. Stores workflow-related data, including hash validation values and progress metrics for Amazon Glacier archives.
AWS Glue	Core. Reorders and splits the Amazon Glacier vault inventory file into partitions for processing by multiple Lambda invocations. Parses file names from Inventory/OverrideNaming file.
AWS Lambda	Core. Performs workflow compute, including archive transfer and validation.
Amazon SNS	Supporting. Decouples Lambda workflows by providing communication between the Guidance, the Amazon Glacier service, and Amazon SQS queues.
Amazon SQS	Supporting. Decouples Lambda workflows.
Amazon CloudWatch	Supporting. Stores the Guidance logs and metrics. Presents a custom dashboard to provide visibility of the archive copy operation progress.
Amazon EventBridge	Supporting. Invokes supporting workflows that promote the smooth operation of the Guidance.
IAM	Supporting. Provides permissions for this Guidance's resources to perform actions.
AWS Systems Manager	Supporting. Provides a Systems Manager document (SSM document) for Guidance's workflow invocations.
AWS Step Functions	Supporting. Orchestrates partitioning the inventory with AWS Glue. Also orchestrates Lambda invocations to request Amazon Glacier vault archive retrieval.