Comparing Premium Page Blob vs Standard in Azure – Differences

If you are looking to understand the differences between Premium Page Blob vs Standard, read along.

Azure Storage, a cloud-oriented storage solution offered by Microsoft, provides two distinct types of storage accounts: Premium Page Blob and Standard Blob Storage. While both types offer secure and scalable data storage, they vary in terms of performance, scalability, and ideal use cases. This article aims to compare these two types of Azure Storage accounts comprehensively.

Also Read: Copy Data across Blob Storage Accounts

Premium Page Blob Storage: An Overview

Premium Page Blob storage is specifically designed for applications that work with smaller kilobyte-range objects and require high transaction rates or consistent low-latency storage. It’s fine-tuned for read/write operations and is typically employed to support an unmanaged disk for an Azure virtual machine. However, Microsoft advises using managed disks with Azure virtual machines where possible.

The scalability targets for Premium Page Blob storage accounts include:

• Disk capacity: 4 TB (individual disk)/ 35 TB (cumulative total of all disks)
• Snapshot capacity: 10 TB
• Total bandwidth for a locally redundant storage account: Up to 50 gigabits per second for both inbound and outbound

If your application surpasses these scalability targets, Microsoft suggests migrating to managed disks. If migration isn’t feasible, you should design your application to utilize multiple storage accounts and distribute your data across those storage accounts.

Standard Blob Storage: An Overview

Standard Blob Storage accounts, encompassing general-purpose v2 (GPv2), general-purpose v1 (GPv1), and Blob storage accounts, are versatile storage solutions suitable for a broad range of scenarios. Microsoft recommends using a GPv2 storage account for most use cases.

The scalability targets for Standard Blob Storage accounts include:

• Maximum number of storage accounts with standard endpoints per region per subscription: 250 by default, 500 upon request
• Default maximum storage account capacity: 5 PiB
• Default maximum request rate per storage account: 20,000 requests per second
• Default maximum ingress per general-purpose v2 and Blob storage account in specific regions: 60 Gbps
• Default maximum egress for general-purpose v2 and Blob storage accounts in specific regions: 120 Gbps

Comparative Table: Premium Page Blob vs Standard

Feature/Parameter	Premium Page Blob Storage	Standard Blob Storage
Optimization	Fine-tuned for read/write operations	Versatile, suitable for a broad range of scenarios
Use Case	Supports an unmanaged disk for an Azure virtual machine	General-purpose storage, recommended for most scenarios
Disk Capacity	4 TB (individual disk)/ 35 TB (cumulative total of all disks)	Not specifically mentioned
Snapshot Capacity	10 TB	Not specifically mentioned
Total Bandwidth	Up to 50 gigabits per second for both inbound and outbound	Varies based on region and account type, up to 120 Gbps for egress and 60 Gbps for ingress
Storage Account Capacity	Not specifically mentioned	Default maximum is 5 PiB
Request Rate	Not specifically mentioned	Default maximum is 20,000 requests per second
Storage Accounts per Region per Subscription	Not specifically mentioned	Maximum of 250 by default, 500 upon request
Recommended Disk Type	Unmanaged disks, but migration to managed disks is suggested if scalability targets are exceeded	GPv2 storage accounts are recommended for most use cases

Conclusion

The choice between Premium Page Blob and Standard Blob Storage depends on your specific application requirements. Premium Page Blob storage accounts offer superior performance. They are ideal for read/write-intensive applications, while Standard Blob Storage accounts provide versatile storage solutions for a wide range of scenarios.

• Official Documentation: Microsoft Learn.

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