Cloud Migration for a Global Manufacturer
Migrated an on-premises data warehouse to a cloud lakehouse without disrupting plant operations.
The Problem
An aging on-premises data warehouse was becoming a scaling and reliability bottleneck, but the manufacturer couldn't risk downtime across 12 active plants running continuous production.
The Architecture
We ran a phased migration, standing up the Databricks Lakehouse alongside the legacy warehouse, validating outputs in parallel before cutting each plant over individually to minimize risk. Delta Lake's time-travel capability let us diff old and new outputs precisely during validation.
The Solution
All 12 plants were migrated over 5 months with zero unplanned downtime, and the legacy warehouse was decommissioned on schedule once the final plant's outputs were validated against the old system.
Business Value
Infrastructure costs dropped 34% post-migration while query performance improved 4x for plant-floor reporting.
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