Microsoft Fabric Updates Blog

Announcing the General Availability of Fast Copy in Dataflows Gen2

Fast Copy in Dataflow Gen2 is now General Available! This powerful feature enables rapid and efficient ingestion of large data volumes, leveraging the same robust backend as the Copy Activity in Data pipelines.

With Fast Copy, you can experience significantly shorter data processing times and improved cost efficiency for your Dataflow Gen2. Additionally, it boosts end-to-end performance by allowing you to use Fast Copy to ingest data into staging, and then seamlessly transform it at scale using SQL DW compute.

Fast Copy: Enhance Performance and Reduce Costs in Dataflow Gen2

Fast Copy leverages the same powerful backend as the copy activity in Data pipelines, utilizing a serverless architecture that enables parallelism to maximize data movement throughout. This approach fully utilizes network bandwidth and data store IOPS for optimal performance.

As detailed in this blog, using Fast Copy to load a 6 GB CSV file into a Lakehouse table in Microsoft Fabric resulted in an 8x increase in performance and a 3x reduction in cost in Dataflow Gen2.

Unlock the Power of Fast Copy: How to Get Started

When you create a new Dataflow Gen2, Fast Copy is automatically enabled. For data sizes over 100 MB or 5 million rows, Dataflow Gen2 seamlessly switches to the Fast Copy backend, no extra steps are needed during dataflow authoring.

After running a refresh, simply check the Refresh History to see if Fast Copy was used by reviewing the entity status.

Supported data sources

Fast Copy supports numerous source connectors, including ADLS Gen2, Blob storage, Azure SQL DB, On-Premises SQL Server, Oracle, Fabric Lakehouse, Fabric Warehouse, PostgreSQL, and Snowflake.

An on-premises gateway is also supported, allowing for high-performance data transfer from on-premises sources. For details, see Fast Copy with On-premises Data Gateway Support in Dataflow Gen2.

Start optimizing your data processing with Fast Copy in Dataflow Gen2 today!

Resources:

Docs: Fast copy in Dataflows Gen2 – Microsoft Fabric | Microsoft Learn

Liittyvät blogikirjoitukset

Announcing the General Availability of Fast Copy in Dataflows Gen2

helmikuuta 3, 2026 tekijä Arun Ulagaratchagan

Data teams today are under extraordinary pressure. Expectations around analytics and AI have never been higher, yet enterprise data continues to live across a patchwork of systems, tools, and platforms. The result is friction, duplication, and complexity, making it harder for data teams to provide a unified, real-time view of their business. Microsoft and Snowflake … Continue reading “Microsoft OneLake and Snowflake interoperability (Generally Available)”

tammikuuta 29, 2026 tekijä Bodhisatva Gautam

We announced Outbound Access Protection for Spark (Generally Available) and recently extended it to support SQL Endpoint and Warehouse. Now, Pipelines, Copy job, Dataflows, OneLake Shortcuts as well as Mirrored Databases (such as Mirrored SQL Database, Mirrored Snowflake) support Workspace level Outbound Access Protection (Preview). Key Benefits What to expect with Outbound access protection (OAP) … Continue reading “Workspace Outbound Access Protection for Data Factory and OneLake Shortcuts (Preview)”