Proposed Pull Request Change

📄 Document Links

View on GitHub View on Microsoft Learn

--- title: Increase performance of Premium SSD, Standard SSD, and Standard HDD description: Increase the performance of Azure Premium SSD, Standard SSD, and Standard HDD managed disks by using performance plus. author: roygara ms.service: azure-disk-storage ms.topic: how-to ai-usage: ai-assisted ms.date: 09/16/2026 ms.author: rogarana ms.custom: devx-track-azurepowershell, portal # Customer intent: As an IT administrator, I want to enable performance enhancements on Azure disks, so that I can increase IOPS and throughput for demanding workloads without incurring additional costs. --- # Increase IOPS and throughput limits for Premium SSD, Standard SSD, and Standard HDD You can increase the input/output operations per second (IOPS) and throughput limits for Premium SSD, Standard SSD, and Standard HDD managed disks that are 513 GiB and larger by enabling performance plus. Enabling performance plus improves the experience for workloads that require high IOPS and throughput, such as database and transactional workloads. There's no extra charge for enabling performance plus on a disk. Once enabled, the IOPS and throughput limits for an eligible disk increase to the higher maximum limits. To see the new IOPS and throughput limits for eligible disks, consult the columns that begin with "*Expanded" in the [Scalability and performance targets for VM disks](disks-scalability-targets.md) article. ## Limitations - Can only be enabled on Standard HDD, Standard SSD, and Premium SSD managed disks that are 513 GiB or larger - Can only be enabled during disk creation - To work around this, create a snapshot of your disk, then create a new disk from the snapshot - Can't be enabled on disks created during virtual machine creation. - Not supported for disks recovered with Azure Site Recovery ## Prerequisites Either use the Azure Cloud Shell to run your commands or install a version of the [Azure PowerShell module](/powershell/azure/install-azure-powershell) 9.5 or newer, or a version of the [Azure CLI](/cli/azure/install-azure-cli) that is 2.44.0 or newer. ## Enable performance plus You need to create a new disk to use performance plus. The following scripts show how to create a disk with performance plus enabled and, if desired, attach it to a VM. The commands have been organized into self-contained steps for reliability. # [Azure CLI](#tab/azure-cli) ### Create a resource group This step creates a resource group with a unique name. ```azurecli export RANDOM_SUFFIX=$(openssl rand -hex 3) export MY_RG="PerfPlusRG$RANDOM_SUFFIX" export REGION="WestUS2" az group create -g $MY_RG -l $REGION ``` A successful response shows the resource group's `provisioningState` set to `Succeeded`: <!-- expected_similarity=0.3 --> ```JSON { "id": "/subscriptions/xxxxx/resourceGroups/PerfPlusRGxxx", "location": "WestUS2", "name": "PerfPlusRGxxx", "properties": { "provisioningState": "Succeeded" } } ``` ### Create a new disk with performance plus enabled The [az disk create](/cli/azure/disk#az-disk-create) command creates a disk in the resource group and region you defined earlier. Specify an eligible disk SKU and a size of 513 GiB or larger, and set `--performance-plus` to `true`. ```azurecli export MY_DISK="PerfPlusDisk$RANDOM_SUFFIX" export SKU="Premium_LRS" export DISK_SIZE=513 az disk create -g $MY_RG -n $MY_DISK --size-gb $DISK_SIZE --sku $SKU -l $REGION --performance-plus true ``` A successful response shows `performancePlus` set to `true` and `provisioningState` set to `Succeeded`: <!-- expected_similarity=0.3 --> ```JSON { "id": "/subscriptions/xxxxx/resourceGroups/PerfPlusRGxxx/providers/Microsoft.Compute/disks/PerfPlusDiskxxx", "location": "WestUS2", "name": "PerfPlusDiskxxx", "properties": { "provisioningState": "Succeeded", "diskSizeGb": 513, "sku": "Premium_LRS", "performancePlus": true }, "type": "Microsoft.Compute/disks" } ``` ### Attempt to attach the disk to a VM This optional step attempts to attach the disk to an existing VM. It first checks if the VM exists and then proceeds accordingly. ```azurecli export MY_VM="NonExistentVM" if az vm show -g $MY_RG -n $MY_VM --query "name" --output tsv >/dev/null 2>&1; then az vm disk attach --vm-name $MY_VM --name $MY_DISK --resource-group $MY_RG else echo "VM $MY_VM not found. Skipping disk attachment." fi ``` If the VM doesn't exist, the output confirms that disk attachment was skipped: <!-- expected_similarity=0.3 --> ```text VM NonExistentVM not found. Skipping disk attachment. ``` ### Create a new disk from an existing disk with performance plus enabled This series of steps creates a snapshot from an existing disk and then uses `az disk create` to create a new disk from that snapshot. The source disk, snapshot, and new disk must be in the same region. Specify an eligible disk SKU and a size of 513 GiB or larger, and set `--performance-plus` to `true`. #### Create a resource group for migration ```azurecli export RANDOM_SUFFIX=$(openssl rand -hex 3) export MY_MIG_RG="PerfPlusMigrRG$RANDOM_SUFFIX" export REGION="WestUS2" az group create -g $MY_MIG_RG -l $REGION ``` A successful response shows the migration resource group's `provisioningState` set to `Succeeded`: <!-- expected_similarity=0.3 --> ```JSON { "id": "/subscriptions/xxxxx/resourceGroups/PerfPlusMigrRGxxx", "location": "WestUS2", "name": "PerfPlusMigrRGxxx", "properties": { "provisioningState": "Succeeded" } } ``` #### Create the disk from the snapshot ```azurecli # Create a snapshot from the original disk export MY_SNAPSHOT_NAME="PerfPlusSnapshot$RANDOM_SUFFIX" echo "Creating snapshot from original disk..." az snapshot create \ --name $MY_SNAPSHOT_NAME \ --resource-group $MY_RG \ --source $MY_DISK # Get the snapshot ID for use as source SNAPSHOT_ID=$(az snapshot show \ --name $MY_SNAPSHOT_NAME \ --resource-group $MY_RG \ --query id \ --output tsv) echo "Using snapshot ID: $SNAPSHOT_ID" # Create the new disk using the snapshot as source export MY_MIG_DISK="PerfPlusMigrDisk$RANDOM_SUFFIX" export SKU="Premium_LRS" export DISK_SIZE=513 az disk create \ --name $MY_MIG_DISK \ --resource-group $MY_MIG_RG \ --size-gb $DISK_SIZE \ --performance-plus true \ --sku $SKU \ --source $SNAPSHOT_ID \ --location $REGION ``` A successful response shows `performancePlus` set to `true` and `provisioningState` set to `Succeeded` for the new disk: <!-- expected_similarity=0.3 --> ```JSON { "id": "/subscriptions/xxxxx/resourceGroups/PerfPlusMigrRGxxx/providers/Microsoft.Compute/disks/PerfPlusMigrDiskxxx", "location": "WestUS2", "name": "PerfPlusMigrDiskxxx", "properties": { "provisioningState": "Succeeded", "diskSizeGb": 513, "sku": "Premium_LRS", "performancePlus": true, "source": "/subscriptions/xxxxx/resourceGroups/PerfPlusRGxxx/providers/Microsoft.Compute/snapshots/PerfPlusSnapshotxxx" }, "type": "Microsoft.Compute/disks" } ``` # [Azure PowerShell](#tab/azure-powershell) ### Create a resource group This step creates a resource group with a unique name. ```azurepowershell $RANDOM_SUFFIX = (New-Guid).Guid.Substring(0,6) $myRG = "PerfPlusRG$RANDOM_SUFFIX" $region = "WestUS2" New-AzResourceGroup -Name $myRG -Location $region ``` A successful response shows the resource group's `ProvisioningState` set to `Succeeded`: <!-- expected_similarity=0.3 --> ```JSON { "ResourceGroupName": "PerfPlusRGxxx", "Location": "WestUS2", "ProvisioningState": "Succeeded" } ``` ### Create a new disk with performance plus enabled Use the [New-AzDiskConfig](/powershell/module/az.compute/new-azdiskconfig) cmdlet to create a disk configuration for an eligible SKU and a size of 513 GiB or larger, with `-PerformancePlus` set to `$true`. Then, use the [New-AzDisk](/powershell/module/az.compute/new-azdisk) cmdlet to create the disk in the resource group you defined earlier. ```azurepowershell $myDisk = "PerfPlusDisk$RANDOM_SUFFIX" $sku = "Premium_LRS" $size = 513 $diskConfig = New-AzDiskConfig -Location $region -CreateOption Empty -DiskSizeGB $size -SkuName $sku -PerformancePlus $true $dataDisk = New-AzDisk -ResourceGroupName $myRG -DiskName $myDisk -Disk $diskConfig ``` A successful response shows `PerformancePlus` set to `true` and `ProvisioningState` set to `Succeeded`: <!-- expected_similarity=0.3 --> ```JSON { "ResourceGroup": "PerfPlusRGxxx", "Name": "PerfPlusDiskxxx", "Location": "WestUS2", "Sku": "Premium_LRS", "DiskSizeGB": 513, "PerformancePlus": true, "ProvisioningState": "Succeeded" } ``` ### Attempt to attach the disk to a VM This optional step checks whether the specified VM exists before attempting the disk attachment. ```azurepowershell $myVM = "NonExistentVM" if (Get-AzVM -ResourceGroupName $myRG -Name $myVM -ErrorAction SilentlyContinue) { Add-AzVMDataDisk -VMName $myVM -ResourceGroupName $myRG -DiskName $myDisk -Lun 0 -CreateOption Empty -ManagedDiskId $dataDisk.Id } else { Write-Output "VM $myVM not found. Skipping disk attachment." } ``` If the VM doesn't exist, the output confirms that disk attachment was skipped: <!-- expected_similarity=0.3 --> ```text VM NonExistentVM not found. Skipping disk attachment. ``` ### Create a new disk from a source VHD with performance plus enabled This series of steps creates a separate resource group and then uses `New-AzDiskConfig` and `New-AzDisk` to create a new disk with performance plus enabled from a source VHD. Replace `$sourceURI` with a valid source blob URI in the same region as the new disk. Specify an eligible disk SKU and a size of 513 GiB or larger, and set `-PerformancePlus` to `$true`. #### Create a resource group for migration ```azurepowershell $RANDOM_SUFFIX = (New-Guid).Guid.Substring(0,6) $myMigrRG = "PerfPlusMigrRG$RANDOM_SUFFIX" $region = "WestUS2" New-AzResourceGroup -Name $myMigrRG -Location $region ``` A successful response shows the migration resource group's `ProvisioningState` set to `Succeeded`: <!-- expected_similarity=0.3 --> ```JSON { "ResourceGroupName": "PerfPlusMigrRGxxx", "Location": "WestUS2", "ProvisioningState": "Succeeded" } ``` #### Create the disk from the source VHD ```azurepowershell $myDisk = "PerfPlusMigrDisk$RANDOM_SUFFIX" $sku = "Premium_LRS" $size = 513 $sourceURI = "https://examplestorageaccount.blob.core.windows.net/snapshots/sample-westus2.vhd" # Replace with a valid source blob URI in WestUS2 $diskConfig = New-AzDiskConfig -Location $region -CreateOption Copy -DiskSizeGB $size -SkuName $sku -PerformancePlus $true -SourceResourceID $sourceURI $dataDisk = New-AzDisk -ResourceGroupName $myMigrRG -DiskName $myDisk -Disk $diskConfig ``` A successful response shows `PerformancePlus` set to `true` and `ProvisioningState` set to `Succeeded` for the new disk: <!-- expected_similarity=0.3 --> ```JSON { "ResourceGroup": "PerfPlusMigrRGxxx", "Name": "PerfPlusMigrDiskxxx", "Location": "WestUS2", "Sku": "Premium_LRS", "DiskSizeGB": 513, "PerformancePlus": true, "SourceResourceID": "https://examplestorageaccount.blob.core.windows.net/snapshots/sample-westus2.vhd", "ProvisioningState": "Succeeded" } ``` #### Attempt to attach the migrated disk to a VM This optional step verifies the existence of the specified VM before attempting disk attachment. ```azurepowershell $myVM = "NonExistentVM" if (Get-AzVM -ResourceGroupName $myMigrRG -Name $myVM -ErrorAction SilentlyContinue) { Add-AzVMDataDisk -VMName $myVM -ResourceGroupName $myMigrRG -DiskName $myDisk -Lun 0 -CreateOption Empty -ManagedDiskId $dataDisk.Id } else { Write-Output "VM $myVM not found. Skipping disk attachment." } ``` If the VM doesn't exist, the output confirms that disk attachment was skipped: <!-- expected_similarity=0.3 --> ```text VM NonExistentVM not found. Skipping disk attachment. ``` # [Azure portal](#tab/portal) ### Create a new disk with performance plus enabled 1. Sign in to the [Azure portal](https://portal.azure.com). 1. Search for and navigate to **Disks** and create a new disk. 1. On **Basics**, fill out the required fields. 1. Select the **Source type** that you'd like. 1. Select **Change size**, choose the disk type you want, and select a size of 513 GiB or larger. 1. Proceed to **Advanced** and select the checkbox next to **Enable performance plus**. 1. Select **Review + create** and then deploy your disk. :::image type="content" source="media/disks-enable-performance/disks-performance-plus-enable.png" alt-text="Screenshot of the managed disk Advanced pane with Enable performance plus selected." lightbox="media/disks-enable-performance/disks-performance-plus-enable.png"::: ---