Azure Files pricing

Reliable, economical cloud storage for data big and small

Start your Azure free account and get a $200 credit for 30 days. Plus, now get 12 months of free access to Storage.

Azure has five types of storage: Blobs, Files, Disks, Tables and Queues. See how they work

Your total cost depends on how much you store, the volume and type of storage transactions and outbound data transfers, and which data redundancy option you choose. See how they compare in the “Data Redundancy Options” section.

File storage

Azure Files offers fully managed file shares in the cloud that are accessible via the industry-standard Server Message Block (SMB) protocol. Azure File shares can be mounted concurrently by cloud or on-premises deployments of Windows, macOS and Linux. Azure Files enable sharing files between applications running in your virtual machines using familiar Windows APIs or File REST API. Additionally, Azure File Sync allows caching and synchronisation of Azure Files shares on Windows Servers for local access.

Learn more

Storage prices

These are the costs of storing your data in Azure File shares. The prices shown below are the monthly charges per GB of data stored. These prices vary based on the redundancy option that you choose.

LRS GRS
$- per GB $- per GB

Access prices

Transaction costs are incurred for both SMB and REST operations against your Azure File share. These are the costs for operations, such as enumerating a directory or reading a file, against the data you store on an Azure File share. These prices vary based on the redundancy option that you choose.

LRS GRS
Put, Create Container Operations (per 10,000) $- $-
List Operations (per 10,000) $- $-
All other operations except Delete, which is free (per 10,000) $- $-
Azure Files do not support ZRS and RA-GRS at this time. File shares in the RA-GRS storage account are charged at GRS prices.
Note: File operations that result in data transferred outside of an Azure data centre will result in additional outbound data transfer charges.

File Sync Prices*Preview

These are the costs of syncing your files from Windows servers to Azure File shares in the cloud. Learn more about Azure File Sync.

The total cost of Azure File Sync (AFS) services is determined by the number of servers that connect to the cloud endpoint (Azure File Share). This is in addition to the underlying cost of File storage (including storage and access costs) and outbound data transfer.

Below is the fixed monthly fee per server.

Preview price per month (at 50% discount)
Sync Server* $-

*One sync server free per storage sync service. Sync uses file operations to sync your data to the cloud and other servers, and you will be billed for any operations that are generated in the sync process. The number of File operations generated and the access costs scale with the number file changes on the server and the number of servers that need to be kept in sync.

See Azure File Sync region availability

Import/Export

Transfer large amounts of data to and from Azure using hard disk drives. Learn more

Data redundancy options

locally redundant storage Makes multiple synchronous copies of your data within a single data centre.
zone redundant storage Stores three copies of data across multiple data centres within or across regions. For Block Blobs only.
geographically redundant storage Same as locally redundant storage, plus multiple asynchronous copies to a second data centre hundreds of miles away.
read-access geographically redundant storage Same as geographically redundant storage, plus read access to the secondary data centre.

For more details on redundancy options and how they can be used for high availability, please refer to the Azure Storage replication. Please note that not all redundancy types are available for all storage types.

Support and SLA

  • Free billing and subscription management support.
  • Flexible support plans starting at $29/month. Shop for a plan
  • Guaranteed 99.9% or greater availability (excludes preview services). Read the SLA

FAQs

General

  • Yes. Storage capacity is billed in units of the average daily amount of data stored, in gigabytes (GB), over a monthly period. For example, if you consistently used 10 GB of storage for the first half of the month, and none for the second half of the month, you would be billed for your average usage of 5 GB of storage.

  • Storage accounts are set up to be geographically redundant by default. You can change these settings to read-access geographically redundant or locally redundant through the Microsoft Azure classic portal or the service management API. You can also check the status on the portal for using the service management API.

  • Storage accounts will be charged for a minimum of 30 days from the time the service is enabled. For example, if read-access geographically redundant storage is activated on 1 May and turned off on 5 May, the storage account will be charged for read-access geographically redundant storage until 30 May. After that, geographically redundant storage pricing would start.

    If read-access geographically redundant storage is activated on 1 May and turned off on 14 June, read-access geographically redundant storage would be charged until 14 June. On 15 June, geographically redundant storage pricing would take effect.

Blob storage

  • A blob storage account is a storage account specialised in storing data as blobs and allows users to specify an access tier based on the frequency of access for the data in that account. General-purpose storage accounts can be used to store blobs, as well as files, disks, tables and queues.

  • No. Block blob prices in general-purpose storage accounts have not changed. See the prices.

  • If you see “Hot”, “Cool” or “Archive” in the resource name, it means that the charge is associated with blob storage accounts. For example, when you see “Standard IO – Cool Block Blob (GB)” in your bill, it means that you are using and being charged for blob storage accounts, while “Standard IO – Block Blob (GB)” is the meter associated with use of block blobs in general-purpose storage accounts.

  • In blob storage accounts, you can set the access tier of a blob as Hot, Cool or Archive. Storage GB pricing increases from Archive to Cool to Hot tiers, and cost of accessing data increases from Hot to Cool to Archive tiers. The Archive and Cool tiers should be used for rarely and infrequently accessed data respectively, with lower availability SLA requirements. If you don’t know the access pattern for your data, we recommend that you start with the Hot tier for at least a month, and then determine whether you can save costs by moving to Cool and Archive storage based on your actual usage.

  • You will be charged for data retrieval when you toggle your blob storage account from Cool to Hot, for example, if you have 100 GB of data in a blob storage account and you toggle that account from Cool to Hot, you will be charged 100 x $0.01 = $1 for data retrieval.

  • No. If you toggle your account from Hot to Cool, you will not be charged for data writes. You are only charged for data writes if you directly write data to your blob storage account with Cool access tiers.

  • When you write data into GRS accounts, that data will be replicated to another Azure region. The Geo-Replication Data Transfer charge is the bandwidth cost of replicating that data to another Azure region.

Disk storage

  • If the empty 100 GB disk is backed by a Premium Storage account, then you'll be charged for a P0 (128 GB) disk. If any other type of storage account is used, then you’ll only be billed for the storage space used to store the data that’s written to the disk, regardless of the allocated disk size.

  • Yes. 99.9% read/write availability also applies to Premium Storage Accounts.

File storage

  • You will only be billed for storage used, not the quota set.

Resources

Estimate your monthly costs for Azure services

Review Azure pricing frequently asked questions

Learn more about Storage

Review technical tutorials, videos and more resources

Learn and build with $200 in credit, and keep going for free

Free account