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Azure Files FAQs

Updated today

What happens if Azure permissions are not provided?

Discovery, backups, and restores will fail.

What happens if you attach an Azure backup set with a pool that has non-Azure-based NAS agents?

The backups and restores will fail.

What are the implications of combining NAS agents with older agents in the same pool for an Azure backup set?

Mixing agent types in a pool is not advisable; a dedicated pool with only NAS agents is required for Azur File Share protection.

Which operating system is required for the Azure agent?

Only Ubuntu-based proxies (version 22 and above) are currently supported. For more information, see System Requirements and Prerequisites for Azure Files.

Are Cyber Resiliency features supported for Azure Files?

No.

Is LTR or Archive supported for Azure Files?

No.

Which storage type access tiers are supported?

The following access tiers are supported:

  • Premium

  • Transaction Optimized

  • Hot

  • Cool

What encryption types are supported?

  • Platform/Microsoft managed key (PMK/MMK)

  • Customer managed keys (CMK)

Which encryption type is currently not supported?

Customer provided key (CPK).

Which Azure Files APIs are being used for backups and restores?

API

Description

Type

List File Share

List the File Share. This API call returns the tags and metadata.

Backup

Get File Share Properties

This API is called just before the data reading starts.

Backup/Restore

ReadAt

Reads data from File Share.

Backup

UploadStream

Restores small files (< 256MB).

Restore

Stage Block

Restores large files (> 256MB).

Restore

Commit Block

Used during the restore operation for large files (> 256MB).

Restore

To deduce the approximate cost of a single backup/restore job that you might incur, refer Azure Files Pricing. Check relevant FS m/s doc

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