OneLake Backup

Hi AB_34 
Disaster Recovery and Data Protection for OneLake:
In the Fabric ecosystem, OneLake provides features for disaster recovery and data protection.

1) Business Continuity and Disaster Recovery (BCDR):
You can enable or disable BCDR for a specific capacity through the Capacity Admin Portal. When activated, your data is duplicated and stored in two different geographic regions, making it geo-redundant. If a disaster affects the primary region, OneLake may initiate a regional failover. After the failover, you can access your data in the secondary region via OneLake’s APIs.

2) Soft Delete for OneLake Files:
OneLake soft delete protects individual files from accidental deletion. Files are retained for a default retention period (currently 28 days, transitioning to 7 days starting May 2024). You can restore files and folders using Blob REST APIs, Azure Storage SDKs, and PowerShell.

For more information you can refer to this link: 
OneLake Disaster Recovery and Data Protection - Microsoft Fabric | Microsoft Learn

Hope this helps. Please let me know if you have any further questions.