Comparison
Azure Files vs NAS: The Last File Server Debate
Azure Files provides fully managed SMB file shares in the cloud — the direct replacement for the NAS or file server workloads that don't belong in SharePoint, like application data, large design-file libraries, and legacy apps that require a mapped drive path. It behaves like the share your applications expect, without the hardware to own, patch, back up, or eventually replace.
The short version
- Native SMB protocol — existing apps and mapped drives work without rewrites
- Entra ID (Kerberos) authentication means no domain controller needed for access control
- Azure File Sync can cache hot data on a small local footprint where latency matters
- Snapshots and geo-redundancy replace your backup appliance for these workloads
- Honest math: for multi-terabyte cold data, storage costs need modeling — the full article includes the framework
Going deeper
This is the decision that retires the last box in the closet. The full article covers the SharePoint vs Azure Files decision tree, performance tiers and when premium is worth it, and the migration sequence from a dying NAS without user disruption.
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