AWS Storage Blog
Author: Justin Leto
Justin Leto is a Principal Solutions Architect at Amazon Web Services with a specialization in generative and agentic AI. Justin has presented at global AI conferences, including AWS re:Invent, and lectured at universities. He leads the NYC generative and agentic AI meetup. Justin lives in New York City with his wife and two kids.
Use Amazon FSx for Lustre to share Amazon S3 data across accounts
Update 4/9/2025: The cross-account bucket policy in the blog has been updated. It was missing a required principal: “arn:aws:iam::accountID:role/AWS-Signed-In-Console-Role.” This omission causes an access denied error. As enterprises evolve their cloud governance practices, multiple teams working in separate accounts may need to share data. One team may oversee an enterprise data lake in one account, […]