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Study Guide1,350 words

AWS Lambda Storage: Mounting Volumes for Data Pipelines

Use and mount storage volumes from within Lambda functions

AWS Lambda Storage: Mounting Volumes for Data Pipelines

This guide covers the critical skills for the AWS Certified Data Engineer Associate (DEA-C01) regarding the use of external storage within serverless functions. While AWS Lambda is inherently stateless, data-intensive tasks often require mounting persistent volumes like Amazon EFS or accessing large objects via Amazon S3.

Learning Objectives

After studying this guide, you should be able to:

  • Differentiate between ephemeral (/tmp) and persistent storage (EFS/S3) in Lambda.
  • Configure a Lambda function to mount an Amazon EFS file system.
  • Identify use cases for mounting S3 as a file system versus using standard SDK calls.
  • Understand the networking requirements (VPC) for mounting storage volumes.

Key Terms & Glossary

  • Statelessness: The design principle where a function does not
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