---
title: "Mercedes-Benz builds a cross-cloud data mesh with Delta Sharing and intelligent replication, cutting costs by 66%"
description: "Mercedes-Benz built a cross-cloud data mesh to share after-sales data between AWS and Azure while supporting its data-defined vehicle strategy. Existing direct queries incurred egress costs, and weekly full loads delayed updates for datasets that included vehicle over-the-air events and workshop visits; source tables were in Iceberg while many consumers expected Delta. Using Unity Catalog and Delta Sharing, the company federated AWS Glue tables, established cross-metastore shares, and used periodic serverless Sync Jobs with Delta Deep Clone to incrementally replicate selected tables into Azure object storage for local querying. This hybrid model preserves direct sharing for fresher workloads while reducing transfer for less time-sensitive ones. For the initial ten data products, egress costs fell 66%, update frequency improved from weekly to every second day, and the source reports an approximately 93% annual reduction in its 50-use-case comparison."
---

# Mercedes-Benz builds a cross-cloud data mesh with Delta Sharing and intelligent replication, cutting costs by 66%

[Databricks](https://yomu.fyi/company/databricks) · Alexander Summa, Aleksandar Dragojevic · Apr 20, 2026

**Type:** Problem & solution

## Summary

Mercedes-Benz built a cross-cloud data mesh to share after-sales data between AWS and Azure while supporting its data-defined vehicle strategy. Existing direct queries incurred egress costs, and weekly full loads delayed updates for datasets that included vehicle over-the-air events and workshop visits; source tables were in Iceberg while many consumers expected Delta. Using Unity Catalog and Delta Sharing, the company federated AWS Glue tables, established cross-metastore shares, and used periodic serverless Sync Jobs with Delta Deep Clone to incrementally replicate selected tables into Azure object storage for local querying. This hybrid model preserves direct sharing for fresher workloads while reducing transfer for less time-sensitive ones. For the initial ten data products, egress costs fell 66%, update frequency improved from weekly to every second day, and the source reports an approximately 93% annual reduction in its 50-use-case comparison.

## Context

Mercedes-Benz needed secure, cost-effective sharing across its AWS and Azure multi-cloud environment. Azure consumers queried approximately 60 TB of growing after-sales data stored primarily in AWS, creating egress costs, freshness constraints, and a format mismatch between Iceberg source tables and Delta-oriented consumers. Weekly full loads were too infrequent for use cases such as warranty-case response.

## Approach / What changed

The company combined Unity Catalog and Delta Sharing for governed cross-cloud, cross-region, cross-metastore, and external data exchange. For large, heavily accessed datasets where sub-hourly freshness was unnecessary, periodic serverless Sync Jobs used Delta Deep Clone to incrementally replicate shared tables into Azure object storage for local consumption. DDX, Declarative Automation Bundles, YAML deployments, and cost-reporting jobs automated governance, operations, and attribution.

## Takeaways

- Egress costs for the initial 10 data products dropped by 66%; the source also reports an approximately 93% annual egress-cost reduction in a 50-use-case comparison.
- Incremental replication increased Azure data freshness from weekly full loads to updates such as every second day, helping reduce delays in responding to warranty cases.
- The architecture supports a freshness-cost trade-off: direct Delta Shares serve more time-sensitive workloads, while locally replicated tables minimize recurring cross-cloud data movement.

**Tags:** [Architecture](https://yomu.fyi/topic/architecture), [AWS](https://yomu.fyi/topic/aws), [Azure](https://yomu.fyi/topic/azure), [Delta Sharing](https://yomu.fyi/topic/delta-sharing), [Unity Catalog](https://yomu.fyi/topic/unity-catalog)

- Source: [Databricks](https://www.databricks.com/blog/mercedes-benz-builds-cross-cloud-data-mesh-delta-sharing-and-intelligent-replication-cutting)
- Source URL: https://www.databricks.com/blog/mercedes-benz-builds-cross-cloud-data-mesh-delta-sharing-and-intelligent-replication-cutting
- Ingested by Yomu: 2026-08-31T03:42:32.095Z

[Read original post](https://www.databricks.com/blog/mercedes-benz-builds-cross-cloud-data-mesh-delta-sharing-and-intelligent-replication-cutting)