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