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‎articles/storage/blobs/cost-estimate-archive-retrieval.md

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---
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title: 'Cost estimate: Archival & retrieval (Azure Blob Storage)'
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title: 'Cost estimate: Early retrieval from archive (Azure Blob Storage)'
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description: This article shows an example of what it costs to archive and then retrieve data in Azure Blob Storage.
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services: storage
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author: normesta
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ms.service: azure-blob-storage
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ms.date: 05/07/2025
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ms.date: 05/27/2025
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ms.topic: concept-article
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ms.author: normesta
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---
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# Cost estimate: Large-scale data archival and retrieval
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# Cost estimate: Early data retrieval from archive
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This sample estimates the cost to archive data and then retrieve some portion of that data before the 180 day limit.
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## Estimate
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The following table shows the sample estimate at a glance.
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| Cost component | Estimate |
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|--------------------------|-------------|
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| Cost of write operations | $28.18 |
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| Cost of read operations | $0.22 |
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| Data retrieval fee | $88.00 |
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| Early deletion penalty | $24.00 |
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| **Total cost** | **$140.40** |
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This sample estimate doesn't include the [cost of data storage](blob-storage-estimate-costs.md#the-cost-to-store-data) which is billed per GB.
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## Breakdown
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Based on [these sample prices](blob-storage-estimate-costs.md#sample-prices), the following table shows how each cost component is calculated.
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| Cost factor | Calculation | Value |
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|----------------------------------|-----------------------------------------------|------------|
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| PutBlock operations per blob | 10 GiB / 8-MiB block | 1280 |
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| PutBlockList operations per blob | 1 per blob | 1 |
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| **Cost of write operations** | (2,000 blobs * 1,281) * write operation price | **$28.18** |
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| SetBlobTier operations | 2000 blobs * 20% | 400 |
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| **Cost of read operations** | 400 operations * read operation price | **$0.22** |
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| Total file size (GB) | | 20,000 |
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| Data retrieval size | 20,000 GB * 20% | 4,000 |
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| **Data retrieval fee** | 4,000 blobs * price of data retrieval | **$88.00** |
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| Rough number of months penalty | (180 days - 90 days) / 30 days | 3 |
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| **Early deletion penalty** | 4000 blobs * price of archive storage / 3 | **$24.00** |
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## Factors that can impact the cost
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| Cost component | Cost factor | Calculation | Value |
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|--------------------|-----------------------------------------------|---------------------------------------|-------------|
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| Change tier to hot | Number of SetBlobTier operations | 2000 blobs * 20% | 400 |
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| | Price of a SetBlobTier operation | Taken from sample prices | $0.00055 |
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| | Cost to change tier to hot<br></br> | 400 operations * $0.00055 | **$0.22** |
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| Data retrieval fee | Total file size | 20 TB | 20,000 GB |
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| | Data retrieval size | 20,000 GB * 20% | 4,000 |
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| | Price of data retrieval (per GB) | Taken from sample prices | $0.0220 |
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| | Cost to retrieve data<br></br> | 4,000 blobs * $0.0220 | **$88.00** |
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| Early deletion fee | Rough number of months penalty | (180 days - 90 days) / 30 days | 3 |
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| | Price per month of archive storage (per GB) | Taken from sample prices | $0.0020 |
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| | Cost of early deletion<br></br> | (4000 blobs * $0.0020) * 3 | **$24.00** |
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| Read from hot tier | Number of read operations on hot tier | The number of blobs moved to hot tier | 400 |
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| | Price of a read operation on the hot tier | Taken from sample prices | $0.00000044 |
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| | Cost to read blobs from the hot tier<br></br> | 400 operations * $0.00000044 | $0.0002 |
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| **Total cost** | | | **112.22** |
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The following table describes factors that can impact the cost of this scenario.
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| Factor | Impact | Learn more |
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|---|---|----|
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| Copying blobs instead of changing their tier | Adds a cost to write to the target tier, but avoids the early deletion penalty.| [Blob rehydration from the archive tier](archive-rehydrate-overview.md) |
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| Block size | Larger block size reduces the number of write operations required to upload data. | [The cost to upload data](blob-storage-estimate-costs.md) |
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| Uploading data by using the Data Lake Storage endpoint | Smaller fixed block sizes of 4 MiB increases the number of write operations. | [Cost of uploading to the Data Lake Storage endpoint](azcopy-cost-estimation.md#cost-of-uploading-to-the-data-lake-storage-endpoint) |
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| Redundancy configuration of the account | Storage redundancy configuration impacts the cost of certain operations. | [Azure Storage redundancy](../common/storage-redundancy.md) |
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This sample estimate doesn't include the [cost of data storage](blob-storage-estimate-costs.md#the-cost-to-store-data) which is billed per GB.
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## See also
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‎articles/storage/blobs/cost-estimate-multi-region-access.md

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## Estimate
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The following table shows the sample estimate at a glance.
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| Cost component | Estimate |
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|---------------------------------------------------|-------------|
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| Cost of write operations | $163.80 |
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| Cost to transfer data out of region (replication) | $2,000 |
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| Cost of read operations | $110.00 |
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| Cost to transfer data out of region (downloads) | $750.00 |
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| **Total cost** | **$860.00** |
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This sample estimate doesn't include the [cost of data storage](blob-storage-estimate-costs.md#the-cost-to-store-data) which is billed per GB.
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## Breakdown
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Based on [these sample prices](blob-storage-estimate-costs.md#sample-prices), the following table shows how each cost component is calculated.
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| Cost factor | Calculation | Value |
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| Data transfer fee (downloads) | 1875 * data transfer fee | $375.00 |
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| Network bandwidth fee (downloads) | 1875 * network bandwidth fee | $375.00 |
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| **Cost to transfer data out of region (download)** | data transfer fee + network bandwidth fee | **$750.00** |
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| **Total cost** | write + read + data transfer | **860.00** |
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This sample estimate doesn't include the [cost of data storage](blob-storage-estimate-costs.md#the-cost-to-store-data) which is billed per GB.
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## Factors that can impact the cost
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