Deploy a managed disk that uses zone-redundant storage

This article covers how to deploy a disk that uses zone-redundant storage (ZRS) as a redundancy option. ZRS replicates your Azure managed disk synchronously across three Azure availability zones in the selected region. Each availability zone is a separate physical location with independent power, cooling, and networking.

For conceptual information on ZRS, see Zone-redundant storage for managed disks

Limitations

ZRS for managed disks is only supported with Premium SSD and Standard SSD managed disks. ZRS for managed disks isn't supported with Premium SSD v2 managed disks.

Regional availability

ZRS disks are currently available in the following regions:

• South Africa North
• East Asia
• Southeast Asia
• Australia East
• Brazil South
• Canada Central
• China North 3
• North Europe
• West Europe
• France Central
• Germany West Central
• Central India
• Israel Central
• Italy North
• Japan East
• Korea Central
• Norway East
• Poland Central
• Qatar Central
• Sweden Central
• Switzerland North
• UAE North
• UK South
• East US
• East US 2
• South Central US
• West US 2
• West US 3

Azure portal

Create a VM with a ZRS OS disk

1. Sign in to the Azure portal.

2. Navigate to Virtual machines and follow the normal VM creation process.

3. Proceed to the Disks pane.

4. Select your disk and select one of the ZRS disks in the drop-down.

   

5. Proceed through the rest of the VM deployment, making any choices that you desire.

You've now deployed a VM with a ZRS OS disk.

Create a ZRS disk

1. In the Azure portal, search for and select Disks.

2. Select + Add to create a new disk.

3. Select a supported region and Availability zone to None.

4. Select Change size.

   

5. Select one of the available ZRS disks and select OK.

   

6. Continue through the deployment process.

You have now created a managed disk that uses ZRS.

Azure CLI

Create a VM with ZRS disks

rgName=yourRGName
vmName=yourVMName
location=westus2
vmSize=Standard_DS2_v2
image=UbuntuLTS 
osDiskSku=StandardSSD_ZRS
dataDiskSku=Premium_ZRS


az vm create -g $rgName \
-n $vmName \
-l $location \
--image $image \
--size $vmSize \
--generate-ssh-keys \
--data-disk-sizes-gb 128 \
--storage-sku os=$osDiskSku 0=$dataDiskSku

Create VMs with a shared ZRS disk attached to the VMs in different zones

location=westus2
rgName=yourRGName
vmNamePrefix=yourVMNamePrefix
vmSize=Standard_DS2_v2
image=UbuntuLTS
osDiskSku=StandardSSD_LRS
sharedDiskName=yourSharedDiskName
sharedDataDiskSku=Premium_ZRS


az disk create -g $rgName \
-n $sharedDiskName \
-l $location \
--size-gb 1024 \
--sku $sharedDataDiskSku \
--max-shares 2


sharedDiskId=$(az disk show -g $rgName -n $sharedDiskName --query 'id' -o tsv)

az vm create -g $rgName \
-n $vmNamePrefix"01" \
-l $location \
--image $image \
--size $vmSize \
--generate-ssh-keys \
--zone 1 \
--attach-data-disks $sharedDiskId \
--storage-sku os=$osDiskSku \
--vnet-name $vmNamePrefix"_vnet" \
--subnet $vmNamePrefix"_subnet"

az vm create -g $rgName \
-n $vmNamePrefix"02" \
-l $location \
--image $image \
--size $vmSize \
--generate-ssh-keys \
--zone 2 \
--attach-data-disks $sharedDiskId \
--storage-sku os=$osDiskSku \
--vnet-name $vmNamePrefix"_vnet" \
--subnet $vmNamePrefix"_subnet"

Create a Virtual Machine Scale Set with ZRS Disks

location=westus2
rgName=yourRGName
vmssName=yourVMSSName
vmSize=Standard_DS3_V2
image=UbuntuLTS 
osDiskSku=StandardSSD_ZRS
dataDiskSku=Premium_ZRS

az vmss create -g $rgName \
-n $vmssName \
--encryption-at-host \
--image Ubuntu2204 \
--upgrade-policy automatic \
--generate-ssh-keys \
--data-disk-sizes-gb 128 \
--storage-sku os=$osDiskSku 0=$dataDiskSku

Azure PowerShell

Create a VM with ZRS disks

$subscriptionId="yourSubscriptionId"
$vmLocalAdminUser = "yourAdminUserName"
$vmLocalAdminSecurePassword = ConvertTo-SecureString "yourVMPassword" -AsPlainText -Force
$location = "westus2"
$rgName = "yourResourceGroupName"
$vmName = "yourVMName"
$vmSize = "Standard_DS2_v2"
$osDiskSku = "StandardSSD_ZRS"
$dataDiskSku = "Premium_ZRS"


Connect-AzAccount

Set-AzContext -Subscription $subscriptionId
    
$subnet = New-AzVirtualNetworkSubnetConfig -Name $($vmName+"_subnet") `
                                           -AddressPrefix "10.0.0.0/24"

$vnet = New-AzVirtualNetwork -Name $($vmName+"_vnet") `
                             -ResourceGroupName $rgName `
                             -Location $location `
                             -AddressPrefix "10.0.0.0/16" `
                             -Subnet $subnet

$nic = New-AzNetworkInterface -Name $($vmName+"_nic") `
                              -ResourceGroupName $rgName `
                              -Location $location `
                              -SubnetId $vnet.Subnets[0].Id
    

$vm = New-AzVMConfig -VMName $vmName `
                     -VMSize $vmSize
                     

$credential = New-Object System.Management.Automation.PSCredential ($vmLocalAdminUser, $vmLocalAdminSecurePassword);

$vm = Set-AzVMOperatingSystem -VM $vm `
                              -ComputerName $vmName `
                              -Windows `
                              -Credential $credential

$vm = Add-AzVMNetworkInterface -VM $vm -Id $NIC.Id

$vm = Set-AzVMSourceImage -VM $vm `
                          -PublisherName 'MicrosoftWindowsServer' `
                          -Offer 'WindowsServer' `
                          -Skus '2012-R2-Datacenter' `
                          -Version latest


$vm = Set-AzVMOSDisk -VM $vm `
                     -Name $($vmName +"_OSDisk") `
                     -CreateOption FromImage `
                     -StorageAccountType $osDiskSku

$vm = Add-AzVMDataDisk -VM $vm `
                       -Name $($vmName +"_DataDisk1") `
                       -DiskSizeInGB 128 `
                       -StorageAccountType $dataDiskSku `
                       -CreateOption Empty -Lun 0
    
New-AzVM -ResourceGroupName $rgName `
         -Location $location `
         -VM $vm -Verbose

Create VMs with a shared ZRS disk attached to the VMs in different zones

$location = "westus2"
$rgName = "yourResourceGroupName"
$vmNamePrefix = "yourVMPrefix"
$vmSize = "Standard_DS2_v2"
$sharedDiskName = "yourSharedDiskName"
$sharedDataDiskSku = "Premium_ZRS"
$vmLocalAdminUser = "yourVMAdminUserName"
$vmLocalAdminSecurePassword = ConvertTo-SecureString "yourPassword" -AsPlainText -Force  


$datadiskconfig = New-AzDiskConfig -Location $location `
                                   -DiskSizeGB 1024 `
                                   -AccountType $sharedDataDiskSku `
                                   -CreateOption Empty `
                                   -MaxSharesCount 2 `

$sharedDisk=New-AzDisk -ResourceGroupName $rgName `
            -DiskName $sharedDiskName `
            -Disk $datadiskconfig

$credential = New-Object System.Management.Automation.PSCredential ($vmLocalAdminUser, $vmLocalAdminSecurePassword);
    
$vm1 = New-AzVm `
        -ResourceGroupName $rgName `
        -Name $($vmNamePrefix+"01") `
        -Zone 1 `
        -Location $location `
        -Size $vmSize `
        -VirtualNetworkName $($vmNamePrefix+"_vnet") `
        -SubnetName $($vmNamePrefix+"_subnet") `
        -SecurityGroupName $($vmNamePrefix+"01_sg") `
        -PublicIpAddressName $($vmNamePrefix+"01_ip") `
        -Credential $credential 


$vm1 = Add-AzVMDataDisk -VM $vm1 -Name $sharedDiskName -CreateOption Attach -ManagedDiskId $sharedDisk.Id -Lun 0

update-AzVm -VM $vm1 -ResourceGroupName $rgName
  
$vm2 =  New-AzVm `
        -ResourceGroupName $rgName `
        -Name $($vmNamePrefix+"02") `
        -Zone 2 `
        -Location $location `
        -Size $vmSize `
        -VirtualNetworkName $($vmNamePrefix+"_vnet") `
        -SubnetName ($vmNamePrefix+"_subnet") `
        -SecurityGroupName $($vmNamePrefix+"02_sg") `
        -PublicIpAddressName $($vmNamePrefix+"02_ip") `
        -Credential $credential `
        -OpenPorts 80,3389


$vm2 = Add-AzVMDataDisk -VM $vm1 -Name $sharedDiskName -CreateOption Attach -ManagedDiskId $sharedDisk.Id -Lun 0

update-AzVm -VM $vm1 -ResourceGroupName $rgName

Create a Virtual Machine Scale Set with ZRS Disks

$vmLocalAdminUser = "yourLocalAdminUser"
$vmLocalAdminSecurePassword = ConvertTo-SecureString "yourVMPassword" -AsPlainText -Force
$location = "westus2"
$rgName = "yourResourceGroupName"
$vmScaleSetName = "yourScaleSetName"
$vmSize = "Standard_DS3_v2"
$osDiskSku = "StandardSSD_ZRS"
$dataDiskSku = "Premium_ZRS"
   
    
$subnet = New-AzVirtualNetworkSubnetConfig -Name $($vmScaleSetName+"_subnet") `
                                                 -AddressPrefix "10.0.0.0/24"

$vnet = New-AzVirtualNetwork -Name $($vmScaleSetName+"_vnet") `
                             -ResourceGroupName $rgName `
                             -Location $location `
                             -AddressPrefix "10.0.0.0/16" `
                             -Subnet $subnet

$ipConfig = New-AzVmssIpConfig -Name "myIPConfig" `
                               -SubnetId $vnet.Subnets[0].Id 


$vmss = New-AzVmssConfig -Location $location `
                         -SkuCapacity 2 `
                         -SkuName $vmSize `
                         -UpgradePolicyMode 'Automatic'

$vmss = Add-AzVmssNetworkInterfaceConfiguration -Name "myVMSSNetworkConfig" `
                                                -VirtualMachineScaleSet $vmss `
                                                -Primary $true `
                                                -IpConfiguration $ipConfig

$vmss = Set-AzVmssStorageProfile $vmss -OsDiskCreateOption "FromImage" `
                                       -ImageReferenceOffer 'WindowsServer' `
                                       -ImageReferenceSku '2012-R2-Datacenter' `
                                       -ImageReferenceVersion latest `
                                       -ImageReferencePublisher 'MicrosoftWindowsServer' `
                                       -ManagedDisk $osDiskSku

$vmss = Set-AzVmssOsProfile $vmss -ComputerNamePrefix $vmScaleSetName `
                                  -AdminUsername $vmLocalAdminUser `
                                  -AdminPassword $vmLocalAdminSecurePassword 

$vmss = Add-AzVmssDataDisk -VirtualMachineScaleSet $vmss `
                           -CreateOption Empty `
                           -Lun 1 `
                           -DiskSizeGB 128 `
                           -StorageAccountType $dataDiskSku

New-AzVmss -VirtualMachineScaleSet $vmss `
           -ResourceGroupName $rgName `
           -VMScaleSetName $vmScaleSetName

Resource Manager Template

Use the 2020-12-01 API with your Azure Resource Manager template to create a ZRS disk.

Prerequisites

You must enable the feature for your subscription. Use the following steps to enable the feature for your subscription:

1. Execute the following command to register the feature for your subscription

    Register-AzProviderFeature -FeatureName "SsdZrsManagedDisks" -ProviderNamespace "Microsoft.Compute" 
   

2. Confirm that the registration state is Registered (it may take a few minutes) using the following command before trying out the feature.

    Get-AzProviderFeature -FeatureName "SsdZrsManagedDisks" -ProviderNamespace "Microsoft.Compute"  
   

Create a VM with ZRS disks

$vmName = "yourVMName" 
$adminUsername = "yourAdminUsername"
$adminPassword = ConvertTo-SecureString "yourAdminPassword" -AsPlainText -Force
$osDiskType = "StandardSSD_ZRS"
$dataDiskType = "Premium_ZRS"
$region = "eastus2euap"
$resourceGroupName = "yourResourceGroupName"

New-AzResourceGroup -Name $resourceGroupName -Location $region
New-AzResourceGroupDeployment -ResourceGroupName $resourceGroupName `
-TemplateUri "https://raw.githubusercontent.com/Azure-Samples/managed-disks-powershell-getting-started/master/ZRSDisks/CreateVMWithZRSDataDisks.json" `
-resourceName $vmName `
-adminUsername $adminUsername `
-adminPassword $adminPassword `
-region $region `
-osDiskType $osDiskType `
-dataDiskType $dataDiskType

Create VMs with a shared ZRS disk attached to the VMs in different zones

$vmNamePrefix = "yourVMNamePrefix"
$adminUsername = "yourAdminUserName"
$adminPassword = ConvertTo-SecureString "yourAdminPassword" -AsPlainText -Force
$osDiskType = "StandardSSD_LRS"
$sharedDataDiskType = "Premium_ZRS"
$region = "eastus2euap"
$resourceGroupName = "zrstesting1"

New-AzResourceGroupDeployment -ResourceGroupName $resourceGroupName `
-TemplateUri "https://raw.githubusercontent.com/Azure-Samples/managed-disks-powershell-getting-started/master/ZRSDisks/CreateVMsWithASharedDisk.json" `
-vmNamePrefix $vmNamePrefix `
-adminUsername $adminUsername `
-adminPassword $adminPassword `
-region $region `
-osDiskType $osDiskType `
-dataDiskType $sharedDataDiskType

Create a Virtual Machine Scale Set with ZRS Disks

$vmssName="yourVMSSName"
$adminUsername="yourAdminName"
$adminPassword=ConvertTo-SecureString "yourAdminPassword" -AsPlainText -Force
$region="eastus2euap"
$osDiskType="StandardSSD_LRS"
$dataDiskType="Premium_ZRS"

New-AzResourceGroupDeployment -ResourceGroupName zrstesting `
-TemplateUri "https://raw.githubusercontent.com/Azure-Samples/managed-disks-powershell-getting-started/master/ZRSDisks/CreateVMSSWithZRSDisks.json" `
-vmssName "yourVMSSName" `
-adminUsername "yourAdminName" `
-adminPassword $password `
-region "eastus2euap" `
-osDiskType "StandardSSD_LRS" `
-dataDiskType "Premium_ZRS" `

Next steps

• Check out more Azure Resource Manager templates to create a VM with ZRS disks.