Data Mirroring May 2026

Data mirroring is a technique that creates and maintains an exact, near real-time copy of your data across multiple locations to ensure high availability and business continuity.

What is Data Mirroring?

Traditional ETL (Extract, Transform, Load) processes often rely on rigid schedules that can put a heavy load on your source systems. Data mirroring offers a alternative: Introducing Mirroring in Microsoft Fabric data mirroring

Unlike traditional backups that may only occur daily, data mirroring continuously replicates every write operation—updates, deletes, or additions—to a secondary location. This process can be (data is written to both places simultaneously) or asynchronous (there is a slight delay), ensuring that if one system fails due to hardware or software errors, your operations can stay online with minimal downtime. Why Move Away from Traditional ETL? Data mirroring is a technique that creates and