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| 1 | +--- |
| 2 | +title: Azure Block Blob storage performance tiers - Azure Storage |
| 3 | +description: Performance tiers for Azure blob storage. |
| 4 | +author: mhopkins-msft |
| 5 | + |
| 6 | +ms.author: mhopkins |
| 7 | +ms.date: 10/02/2019 |
| 8 | +ms.service: storage |
| 9 | +ms.subservice: blobs |
| 10 | +ms.topic: conceptual |
| 11 | +ms.reviewer: clausjor |
| 12 | +--- |
| 13 | + |
| 14 | +# Azure Block Blob storage performance tiers |
| 15 | + |
| 16 | +As enterprises deploy performance sensitive cloud-native applications, it's important to have options for cost-effective data storage at different performance levels. |
| 17 | + |
| 18 | +Azure block blob storage offers two different performance tiers: |
| 19 | + |
| 20 | +- Premium: optimized for high transaction rates and single-digit consistent storage latency |
| 21 | +- Standard: optimized for high capacity and high throughput |
| 22 | + |
| 23 | +The following considerations apply to the different performance tiers: |
| 24 | + |
| 25 | +- Standard performance is available in all [Azure regions](https://azure.microsoft.com/global-infrastructure/services/?products=storage). Premium performance is available in [select regions](https://azure.microsoft.com/global-infrastructure/services/?products=storage). |
| 26 | +- Premium performance provides optimized pricing for applications with high transaction rates to help [lower total storage cost](https://azure.microsoft.com/blog/reducing-overall-storage-costs-with-azure-premium-blob-storage/) for these workloads. |
| 27 | +- Premium performance requires using block blob storage accounts, which support block blob and append blob. |
| 28 | +- Standard performance is available with General Purpose v1, General Purpose v2, and Blob storage accounts. |
| 29 | +- Premium and standard performance both support [high throughput block blobs](https://azure.microsoft.com/blog/high-throughput-with-azure-blob-storage/). High throughput block blobs are available for premium performance at greater than 256 KiB. High throughput block blobs are available for standard performance at greater than 4 MiB Put Block or Put Blob sizes. |
| 30 | +- Premium performance is currently available with locally redundant storage (LRS) only. |
| 31 | + |
| 32 | +## Premium performance |
| 33 | + |
| 34 | +Premium performance block blob storage makes data available via high-performance hardware. Data is stored on solid-state drives (SSDs) which are optimized for low latency. SSDs provide higher throughput compared to traditional hard drives. |
| 35 | + |
| 36 | +Premium performance block blob storage is ideal for workloads that require fast and consistent response times. It's best for workloads that perform many small transactions. |
| 37 | + |
| 38 | +## Standard performance |
| 39 | + |
| 40 | +Standard performance supports different [access tiers](storage-blob-storage-tiers.md) to store data in the most cost-effective manner. It's optimized for high capacity and high throughput on large data sets. |
| 41 | + |
| 42 | +## Blob lifecycle management |
| 43 | + |
| 44 | +Blob Storage lifecycle management offers a rich, rule-based policy: |
| 45 | + |
| 46 | +- Premium - expire data at the end of its lifecycle |
| 47 | +- Standard - transition data to the best access tier and expire data at the end of its lifecycle |
| 48 | + |
| 49 | +To learn more, see [Manage the Azure Blob storage lifecycle](storage-lifecycle-management-concepts.md). |
| 50 | + |
| 51 | +Data that's stored in a premium block blob storage account can't be moved between hot, cool, and archive tiers. However, you can copy blobs from a block blob storage account to the hot access tier in a *different* account. Use the [Put Block From URL](/rest/api/storageservices/put-block-from-url) API or [AzCopy v10](../common/storage-use-azcopy-v10.md) to copy data to a different account. The **Put Block From URL** API synchronously copies data on the server. The call completes only after all the data is moved from the original server location to the destination location. |
| 52 | + |
| 53 | +## Next steps |
| 54 | + |
| 55 | +Evaluate hot, cool, and archive in GPv2 and Blob storage accounts |
| 56 | + |
| 57 | +- [Check availability of hot, cool, and archive by region](https://azure.microsoft.com/regions/#services) |
| 58 | +- [Manage the Azure Blob storage lifecycle](storage-lifecycle-management-concepts.md) |
| 59 | +- [Learn about rehydrating blob data from the archive tier](storage-blob-rehydration.md) |
| 60 | +- [Evaluate usage of your current storage accounts by enabling Azure Storage metrics](../common/storage-enable-and-view-metrics.md) |
| 61 | +- [Check hot, cool, and archive pricing in Blob storage and GPv2 accounts by region](https://azure.microsoft.com/pricing/details/storage/) |
| 62 | +- [Check data transfers pricing](https://azure.microsoft.com/pricing/details/data-transfers/) |
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