Azure Managed Disks Overview
Azure Managed Disks simplify disk management for Azure Virtual Machines. They handle storage account creation and management, allowing you to focus on deploying and managing your applications. Managed Disks are highly available and durable, offering various performance tiers to meet your application's needs.
What are Managed Disks?
Managed Disks are a resource manager-based representation of a disk in Azure. They are block-level storage volumes that can be attached to an Azure virtual machine. Managed Disks come in several types, each offering different performance characteristics and cost points:
Disk Types
- Standard SSD Managed Disks: Cost-effective disks optimized for workloads that require consistent latency and throughput, such as dev/test environments, small-to-medium databases, and web servers.
- Premium SSD Managed Disks: High-performance, low-latency solid-state drives designed for I/O-intensive workloads, including production and performance-sensitive applications, databases, and large-scale enterprise applications.
- Ultra Disk Managed Disks: The highest performance storage offering for Azure Virtual Machines. Ultra Disks provide extremely low latency, high throughput, and high IOPS. They are ideal for mission-critical applications like large relational databases, SAP HANA, top-tier transactional workloads, and critical analytics.
- Standard HDD Managed Disks: The most cost-effective disks, suitable for backup, non-critical batch jobs, and infrequently accessed data where performance is not a primary concern.
Key Features and Benefits
- Simplified Management: Azure handles the underlying storage account, availability, and management of your disks.
- High Availability: Managed Disks are designed for high availability, with built-in redundancy.
- Durability: Data is durable and protected against hardware failures.
- Scalability: Easily scale disk size and performance as your needs evolve.
- Snapshots and Backups: Create point-in-time snapshots of your disks for backup and disaster recovery.
- Encryption: Data is encrypted at rest using Azure Storage Service Encryption.
- Disk Encryption: Option to use Azure Disk Encryption for OS and data drives.
Important Note:
Managed Disks are the recommended storage solution for Azure Virtual Machines. When creating a new VM, it is highly recommended to use Managed Disks. Existing unmanaged disks can be migrated to Managed Disks.
Common Scenarios
- Boot volumes for Azure VMs.
- Data volumes for Azure VMs.
- Databases (SQL Server, MySQL, PostgreSQL, etc.).
- Application storage.
- Backup and archival.
Getting Started
You can create and manage Managed Disks using the Azure portal, Azure PowerShell, Azure CLI, or Azure SDKs.
For detailed instructions and advanced configurations, please refer to the following resources: