A data science team needs to store petabytes of raw data for machine learning.

The data will be analyzed using Azure Databricks. The team requires POSIX-compliant Access Control Lists (ACLs) to restrict access at the directory and file level.

Which storage solution should you recommend?

Azure Data Lake Storage Gen2 is built on top of Azure Blob Storage. By enabling the hierarchical namespace feature, it provides true directory structures and supports POSIX-compliant Access Control Lists (ACLs). This allows granular security at the directory and file level, which is a strict requirement for many big data and analytics workloads using tools like Databricks or Synapse.