Hi @pmscorca
Thanks for using Microsoft Fabric Community.
Microsoft Fabric's medallion architecture leverages a single OneLake for all data tiers (bronze, silver, gold). This simplifies data management and avoids the overhead of maintaining separate OneLakes for each layer. OneLake is designed to be a single, unified, logical data lake for your entire organization. It offers functionalities like data categorization using domains and workspaces, which makes it suitable to handle data at various stages of refinement. The idea behind OneLake is to remove silos, reduce management effort, and minimize data movement and duplication.
Benefits of a Single OneLake:
- Simplified Data Governance: A single lake simplifies governance and compliance efforts.
- Centralized Management: Easier to manage and monitor the data lifecycle and access.
- Cost Efficiency: Reduces the overhead associated with maintaining multiple storage solutions.
Why Multiple OneLakes Might Not Be Ideal:
- Increased Complexity: Managing multiple OneLakes increases complexity in terms of data governance, access control, and integration.
- Redundant Storage: Storing data in multiple lakes can lead to redundancy and higher storage costs.
- Integration Overhead: Ensuring consistent data flow and synchronization across multiple lakes can be challenging.
Using a single OneLake and logically organizing it to reflect the medallion architecture is a sensible and efficient approach. It leverages the strengths of OneLake in terms of integration, governance, and management while still adhering to the principles of the medallion architecture. This method ensures streamlined operations and cost-effectiveness while maintaining clear separation and organization of data at different processing stages.
I hope this information helps. Please do let us know if you have any further queries.
Thank you.
