How I Used Azure File Sync During a Large Migration Project Azure File Sync was not the tool I reached for first on this migration. It became the right tool once I understood what the project actually needed: zero-downtime data movement while users kept working, cloud tiering to free local disk on branch servers, and a single source of truth in Azure before the on-premises servers were decommissioned. Here is exactly how I deployed it, configured it, and used it across a six-site migration. FA Francis Avorgbedor Azure Engineer July 16, 2026 20 min read Azure File Sync · Migration · Field Notes 6 Sites: HQ and five branch offices across the UK — all migrated with zero scheduled downtime 22TB Total data across 12 Windows file servers — reduced to 4.8TB local cache via cloud tiering 30 Maximum server endpoints per sync group — we used 7, one per site plus one migration server 3 Configuration mistakes that taught me the most — documented in full below Background The Project: Six ...
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