Azure File Sync FAQ

What is Azure File Sync?▾

Azure File Sync extends on-premises Windows Server file shares to Azure Files, enabling central file consolidation, cloud tiering, and multi-site synchronization.

Which Windows Server versions are supported?▾

Supported versions include Windows Server 2012 R2, 2016, 2019, and 2022 (both Standard and Datacenter editions).

How does Cloud Tiering work?▾

Cloud Tiering moves infrequently accessed files to Azure Files while keeping hot files local, reducing on-premises storage costs.

Can I sync multiple servers to the same Azure file share?▾

Yes. Azure File Sync supports multi-site sync, allowing several servers to share a single Azure file share, ensuring file consistency across locations.

What are the network requirements?▾

Servers need outbound HTTPS (port 443) to Azure. For optimal performance, a minimum of 10 Mbps per 1 TB of sync data is recommended.

How is data secured in transit and at rest?▾

Data is encrypted in transit using TLS 1.2+ and at rest with Azure Storage encryption (Microsoft-managed keys by default).

Where can I find pricing details?▾

Pricing is based on Azure File storage tier (Premium, Hot, Cool) and the amount of data transferred. See the Azure Files pricing page for the latest rates.

How do I monitor sync health?▾

Use Azure Monitor and the Azure portal's File Sync blade to view sync health, errors, and performance metrics.

What troubleshooting steps are recommended for sync failures?▾

1. Verify network connectivity and firewall rules.
2. Ensure the Storage Sync Agent is up to date.
3. Review the event logs under “Microsoft\Azure\StorageSync”.
4. Check the Azure portal for any reported errors.
5. Consult the Troubleshooting guide for detailed scenarios.