Azure Disk Storage
High-performance, highly durable block storage for Azure Virtual Machines.
Choose the right disk storage for your performance and price needs
Designed to be used with Azure Virtual Machines and Azure VMware Solution, Azure Disk Storage offers high-performance, durable block storage for your mission- and business-critical applications. Confidently migrate to Azure infrastructure as a service (IaaS) with disk storage options built for the cloud—–Ultra Disk Storage, Premium SSD v2, Premium SSD, Standard SSD, and Standard HDD—to optimize costs and performance for your workload. Get sub-millisecond latency for high-throughput and transaction-intensive workloads such as SAP HANA, SQL Server, and Oracle.
Cost-effective disk storage
Run clustered or high-availability applications cost effectively in the cloud using shared disks.
Get consistent enterprise-grade durability with a 0% annual failure rate.
Meet demand without performance disruption by using Ultra Disk Storage.
Secure your data with automatic encryption using Microsoft-managed keys or your own.
Maximize your investment and business impact
Optimize costs and get the precise amount of disk storage you need for your workloads. Disk options come in sizes from 4 GB to 64 TB at a variety of price points and performance characteristics. Reduce time and costs for backup and disaster recovery with incremental snapshots, which are point-in-time backups for disks that consist of only the changes between snapshots. Lift and shift your Windows and Linux-based clustered or high-availability applications to Azure with shared disks, keeping your architecture as-is and reducing storage costs.
Ensure business continuity and minimize disruptions
Run business-critical applications and avoid costly downtime with redundancy options, including zone-redundant storage which copies your data across multiple zones in a region and protects your disks in the event of a zone failure.
Azure offers single-instance service-level agreements (SLA) for all disk types, with a best-in-class single-instance SLA of 99.9 percent availability for Azure Virtual Machines using Premium SSD or Ultra Disk Storage. Minimize disruption to your business with support from Azure Backup and Azure Site Recovery.
Scale easily and quickly with the performance you need
Get the performance and capacity you need and scale from gigabytes to petabytes of storage. Scale performance on-demand with performance tiers and built-in bursting capabilities to meet business needs. Achieve high performance even at low storage capacities—Azure Ultra Disk Storage and Premium SSD v2 have the flexibility to configure your IOPS (input/output operations per second), throughput, and capacity independently. Create and manage disks easily by selecting the disk type and size.
Help protect your most valuable data
Safeguard sensitive data with the encryption option that meets your security and compliance requirements, including encryption-at-rest, encryption-in-transit, and double-encryption for enhanced security. Restrict access to your data by using Azure Private Link to allow import and export only from your private Azure virtual network. Manage and control access to your data by assigning specific permissions with Azure role-based access control.
Use cases and workloads
Scale to meet your performance needs for handling top-tier databases such as SQL Server, Oracle, and SAP HANA.
Get consistent low latency for latency-sensitive NoSQL databases such as MongoDB, Cassandra, and CouchDB.
Backup and disaster recovery
Minimize disruptions, lower costs, and reduce time spent on backup and recovery with point-in-time snapshots and solutions built by Microsoft partners.
Easily migrate your on-premises Windows- and Linux-based clustered or high-availability applications to Azure. Run your most demanding enterprise applications—such as clustered databases, parallel file systems, persistent containers, and machine learning applications—in the cloud.
Take advantage of high-performance, low-latency block storage for mission-critical stateful applications running in Kubernetes.
Azure VMware Solution
Access high-performance, durable block storage on Azure for your data-intensive and transaction-heavy workloads running on Azure VMware Solution. Scale your storage on-demand and independent of compute resources, enabling you to optimize costs. Learn more about disk pool.
Comprehensive security and compliance, built in
Microsoft invests more than USD$1 billion annually on cybersecurity research and development.
We employ more than 3,500 security experts who are dedicated to data security and privacy.
Get the data disk storage you need at competitive prices
Choose the disk type you need —Ultra Disk Storage, Premium SSD, Standard SSD, and Standard HDD—and use multiple disks with each virtual machine. Lower your total cost of ownership by purchasing disk storage reservations at a discounted rate. Use the pricing calculator to configure and estimate the cost of your disk storage.
Get started with an Azure free account
After your credit, move to pay as you go to keep building with the same free services. Pay only if you use more than your free monthly amounts.
Access more capabilities through Microsoft partners
Tap into a rich partner ecosystem offering a wide range of solutions for database migration, backup, and disaster recovery. Microsoft partners use the unique REST API support capability in Disk Storage to build solutions at lower costs.
Trusted by companies of all sizes
Documentation, training, and resources
Learn how to provision disk storage on Azure with step-by-step guidance from Microsoft Learn.
Frequently asked questions about Disk Storage
Data disks on Ultra Disk Storage hold up to 64 TB per disk. Data disks on Premium SSD, Standard SSD, and Standard HDD hold up to 32 TB. The number of data disks you can use depends on the size of the virtual machine.
Each of the four disk types differs in performance characteristics, so you can configure your storage based on your application needs. Learn about performance guidelines for Ultra Disk Storage or Premium SSDs.
After you purchase a reservation, a discount is automatically applied to the disk resources that match the terms of your reservation. The reservation discount applies to disk SKUs only. Learn more about reservation discounts.