Optimize Azure Managed Disks
Learn how to optimize Azure Managed Disks with actionable insights to enhance cost efficiency, improve performance, and ensure operational excellence.
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Cost Optimization Recommendations
Upgrade to Premium v2 Data Disks
Premium SSD v2 data disks provide significant cost savings (~48%) and faster performance compared to v1 data disks. With Premium SSD v2, you can provision the IOPS and throughput needed without purchasing unnecessary storage capacity.
- Premium SSD v2 is only applicable for data disks and uses Local Redundant Storage (LRS).
- It is not available in all regions. Review region availability before planning migration.
- Premium SSD v2 Limitations
- Learn more about Azure Premium V2 Disks
SKU Pricing Comparison (Australia East Region)
| SKU | Size | IOPS | MB/s | Price (USD) | Cost Saving |
|---|---|---|---|---|---|
| Premium SSD Disk (P10) | 128 GB | 500 | 100 | $19.71 | N/A |
| Premium SSD Disk v2 | 128 GB | 3000 | 125 | $10.28 | ~48% |
Note: Prices vary based on Azure region. Review the Azure pricing calculator for up-to-date cost estimations.
HDD Disks for Deallocated VMs
Premium disks attached to VMs that have been deallocated for extended periods (e.g. 70% of the month) should be downgraded to a cost-effective standard HDD. You can upgrade the disk back to premium before starting the VM.
| SKU | Size | IOPS | MB/s | Price (USD) | Cost Saving (%) |
|---|---|---|---|---|---|
| Premium SSD Disk (P10) | 128 GB | 500 | 100 | $19.71 | N/A |
| Standard HDD Disk (S10) | 128 GB | 500 | 60 | $9.42 | ~52% |
Remove Orphaned Disks
Identify and delete managed disks not attached to any Virtual Machines. Removing these orphaned disks reduces unnecessary costs and optimizes storage.
Alternatively, if the unattached disk is intended to be used in the future, consider changing the disk from Premium SSD to a Standard HDD to save costs. Prior to attaching the disk to a VM, simply upgrade the disk type back to Premium SSD.
Reliability Recommendations
Use Availability Zones
Deploy Virtual Machines in regions with Availability Zone support to enhance availability and enable cost-effective Premium SSD v2 disks.