# Missing performance plus on eligible managed disks Canonical: https://www.pointfive.co/efficiency-hub/inefficiencies/missing-performance-plus-on-eligible-managed-disks For Premium SSD, Standard SSD, and Standard HDD managed disks 513 GiB or larger, Azure now offers the option to enable Performance Plus - unlocking... By: Balazs Engedi Updated: 2026-09-28 [Cloud Efficiency Hub](https://www.pointfive.co/efficiency-hub) # Missing Performance Plus on Eligible Managed Disks The short version For Premium SSD, Standard SSD, and Standard HDD managed disks 513 GiB or larger, Azure now offers the option to enable Performance Plus - unlocking higher IOPS and MBps at no extra cost. [Balazs Engedi](https://www.linkedin.com/in/engedib/) FinOps Specialist @ KPN Azure service [Azure Managed Disks](https://www.pointfive.co/efficiency-hub/cloud-services/azure-managed-disks) Category [Storage](https://www.pointfive.co/efficiency-hub/service-category/storage) Reference CER-0094 Type Inefficient Configuration ## Explanation Why the waste happens and who it affects. Many environments that previously required custom performance settings continue to pay for additional throughput unnecessarily. By not enabling Performance Plus on eligible disks, organizations miss a straightforward opportunity to reduce disk spend while maintaining or improving performance. The feature is opt-in and can only be enabled when a disk is created, so existing disks must be recreated from a snapshot to benefit. ## Billing model The pricing dimensions that drive this cost. Azure Managed Disks are billed based on: - Provisioned disk size (GB/month) - Disk type (e.g., Premium SSD, Standard SSD, Ultra) - Additional performance settings, if configured manually Performance Plus allows eligible disks to receive enhanced performance without incurring additional costs, potentially replacing paid performance upgrades. ## How to detect 4 checks to find it in your estate. - Identify disks \>= 513 GiB that have manually configured additional IOPS or throughput - Check for disks operating near IOPS or MBps limits that are eligible for Performance Plus - Review whether Performance Plus has been enabled on qualifying Premium SSD, Standard SSD, or Standard HDD disks (disks recovered with Azure Site Recovery are not supported) - Cross-reference against workloads with high sustained disk usage to prioritize impact ## How to fix 3 ways to remove the waste. - Performance Plus can only be set when a disk is created. For existing eligible disks, create a snapshot, create a new disk from it with Performance Plus enabled (same region, 513 GiB or larger), and swap it onto the VM during a maintenance window - Decommission paid performance tiers or custom throughput settings where Performance Plus provides equivalent capability - Incorporate Performance Plus enablement into provisioning templates for large disks going forward, creating those disks separately because it cannot be enabled on disks created during VM creation ## Documentation Vendor references for pricing and configuration. [Enable Performance Plus on Azure Disks](https://learn.microsoft.com/en-us/azure/virtual-machines/disks-enable-performance?tabs=azure-cli) ## Related inefficiencies [Browse the library](https://www.pointfive.co/efficiency-hub) - Azure Managed Disks CER-0338 ### [Underutilized Azure Managed Disk Reservations](https://www.pointfive.co/efficiency-hub/inefficiencies/underutilized-azure-managed-disk-reservations) Azure Managed Disk reservations allow organizations to pre-purchase Premium SSD capacity at a discounted rate by committing to a one-year term. However, these reservations operate on a strict use-it-or-lose-it basis - if reserved disk... Storage - Azure Managed Disks CER-0122 ### [Overprovisioned Managed Disk for VM Limits](https://www.pointfive.co/efficiency-hub/inefficiencies/overprovisioned-managed-disk-for-vm-limits) Each Azure VM size has a defined limit for total disk IOPS and throughput. When high-performance disks (e.g., Premium SSDs with high IOPS capacity) are attached to low-tier VMs, the disk's performance capabilities may exceed what the VM... Storage - Azure Managed Disks CER-0121 ### [Outdated and Expensive Premium SSD Disk](https://www.pointfive.co/efficiency-hub/inefficiencies/outdated-and-expensive-premium-ssd-disk) Workloads using legacy Premium SSD managed disks may be eligible for migration to Premium SSD v2, which delivers equivalent or improved performance characteristics at a lower cost. Premium SSD v2 decouples disk size from performance... Storage --- Source: the public page above. Product screenshots and illustrative interfaces are examples, not live customer data.