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.
Azure Government is available to US government entities to purchase physically and network isolated instance of Azure Government from a Licensed Azure Government Service Provider or Partner with no upfront financial commitment or fee. Or, you can sign up for a free Azure Government trial.
Important: The price in R$ is merely a reference; this is an int'l transaction and the final price is subject to exchange rates and the inclusion of IOF taxes and an eNF will not be issued.
Azure Germany is available to customers and partners in the European Union (EU) and European Free Trade Association (EFTA) and provides data residency in Germany with additional levels of control and data protection with a modest price uplift over global cloud offerings (% varies per service).
Storage is not available in the South Africa West region. Please select another region.
Storage is not available in the South Africa North region. Please select another region.
Premium Unmanaged Disks & Page blobs
Premium Unmanaged Disks are high performance Solid State Drive (SSD) based Storage designed to support I/O intensive workloads with significantly high throughput and low latency. With Premium Unmanaged Disks, you can provision a persistent disk and configure its size and performance characteristics.
The total cost of Premium Unmanaged Disk depends on the size and number of the disks, and will be affected by the number of outbound data transfers. These disk sizes provide different input/output operations per sec (IOPs), throughput caps and monthly price per GB. You choose the option which best meets your required storage size, IOPs and throughput. Attach several persistent disks to a VM and you can configure up to 64 TB of storage per VM, and achieve 80,000 input/output operations per second, and 1600 MB per second disk throughput per VM at less than one millisecond latency for read operations. Premium Unmanaged Disks are supported by DS-series, DSv2-series, FS-series, and GS-series VM sizes which are specifically targeted for Premium Disks.
Snapshots are charged at $-/GB per month.
|Disk Size||128 GB||512 GB||1,024 GB|
|Price per month||$-||$-||$-|
|IOPs per disk||500||2,300||5,000|
|Throughput per disk||100 MB / second||150 MB / second||200 MB / second|
Standard Unmanaged Disks & Page blobs
Standard Disks use Hard Disk Drive (HDD) based Storage media. They are best suited for dev/test and other infrequent access workloads that are less sensitive to performance variability.
The total cost of Standard Unmanaged Disk storage depends on the size and number of disks, the number of transactions, and the number of outbound data transfers.
|First 1 TB / Month||$- per GB||$- per GB||$- per GB|
|Next 49 TB (1 to 50 TB) / Month||$- per GB||$- per GB||$- per GB|
|Next 450 TB (50 to 500 TB) / Month||$- per GB||$- per GB||$- per GB|
|Next 500 TB (500 to 1,000 TB) / Month||$- per GB||$- per GB||$- per GB|
|Next 4,000 TB (1,000 to 5,000 TB) / Month||$- per GB||$- per GB||$- per GB|
|Over 5,000 TB / Month||Contact us||Contact us||Contact us|
We charge $- per 10,000 transactions for Standard Disks & Page Blobs. Any type of operation against the storage is counted as a transaction, including reads, writes and deletes.
Transfer large amounts of data to and from Azure using hard disk drives. Learn more
Data Redundancy Options
|Locally Redundant Storage (LRS)||Makes multiple synchronous copies of your data within a single datacenter|
|Zone Redundant Storage (ZRS)||Stores three copies of data across multiple datacenters within or across regions. For block blobs only.|
|Geographically Redundant Storage (GRS)||Same as LRS, plus multiple asynchronous copies to a second datacenter hundreds of miles away|
|Read-Access Geographically Redundant Storage (RA-GRS)||Same as GRS, plus read access to the secondary datacenter|
For more details on redundancy options and how they can be used for high availability, please refer to Azure Storage replication page. Please note that not all redundancy types are available for all storage types.
- If I use Storage for only a few days a month, is the cost prorated?
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 utilized 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.
- How do I know which data redundancy option (LRS, GRS, RA-GRS) I’m using?
Storage accounts by default are set up to be geographically redundant. You can change these setting 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 on using the service management API.
- How does RA-GRS billing work?
Storage accounts will be charged for a minimum of 30 days from the time the service is enabled. For example, if RA-GRS is turned on May 1 and turned off May 5, the storage account will be charged for RA-GRS through May 30. After that, GRS pricing would start.
If RA-GRS is turned on May 1 and turned off June 14, RA-GRS would be charged through June 14. On June 15, GRS pricing would take effect.
- What is a Blob Storage Account and how is it different from a general purpose Storage Account?
Blob Storage Account is a storage account specialized for 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, Queues.
- Have the prices of Block Blobs in general purpose Storage Accounts changed?
No. Block Blob prices in general purpose Storage Account have NOT changed and can be seen here.
- When looking at my Azure bill, how can I tell whether I am being charged for Blob Storage Account or Blobs in general purpose Storage Accounts?
If you see “Hot” or “Cool” 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 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.
- What are Hot and Cool access tiers and how should I determine which one to use?
When you create a Blob Storage Account, you can set the access tier as Cool or Hot. Cool tier has lower cost of storing data but higher cost of accessing data and it should be used for data that is not frequently accessed and has lower availability SLA requirements. If you do not 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 storage based on your actual usage. Below you can see an example.
Example: You have 50TB of data that you want to store in Blob Storage in US East 2 region. You send 10M HTTP operations to the account every month, 20% of which are Put Blob/Block, List and Create Container operations. You read 20TB of data from account every month, and write 10TB of data. This is how your total cost will be calculated in Hot vs. Cool.
Unit of Measure Usage volume Price in Cool Price in Hot Monthly cost in Cool Monthly cost in Hot GB per month 50*1,024= 51,200 $0.01 $0.024 $512 $1228.8 10,000 Put Blob/Block, List, Create Container Operations 20% * 10M /10,000 = 200 $0.1 $0.05 $20 $10 10,000 Operations, others 80% * 10M /10,000 = 800 $0.01 $0.004 $8 $3.2 GB of Data Retrieved 20 * 1,024 = 20,480 $0.01 $0 $204.8 $0 GB of Data Written 10 * 1,024 = 10,240 $0.0025 $0 $25.6 $0 Total Monthly Cost $770.4 $1242
In this example, the total monthly cost of Cool tier adds up to $770.4 vs $1242 in Hot tier. You will realize substantial cost savings by moving your data to the Cool tier in this example.
- Do I get charged for Data Retrieval if I toggle my Blob Storage Account from Cool to Hot?
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 * $0.01 = $1 for Data Retrieval.
- Do I get charged for Data Writes if I toggle my Blob Storage Account from Hot to Cool?
No – If you toggle your account from Hot to Cool, you will not be charged for Data Writes. You only get charged for Data Writes if you directly write data to your Blob Storage Account with Cool access tiers.
- What is Geo-Replication Data Transfer Charge?
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.
- If I attach an empty 100GB disk to my virtual machine, will I be charged for the entire 100 GB or just the storage space I use?
If the empty 100GB disk is backed by a Premium Storage Account then you will be charged for a P0 (128GB) 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 is written to the disk regardless of the allocated disk size.
- Is Premium Storage covered under the same SLA as other storage services?
Yes. 99.9% read/write availability also applies to Premium Storage accounts.