http://www.brainscale.com/blogs/azure-arm-vm-snapshot/ как, например, чтобы вы могли сделать снимок основного хранилища, вы также можете использовать пользовательский интерфейс для создания управляемого диска или вы можете создать управляемый диск из VHD.
#Provide the subscription Id where Managed Disks will be created
$subscriptionId = 'yourSubscriptionId'
#Provide the name of your resource group where Managed Disks will be created.
$resourceGroupName ='yourResourceGroupName'
#Provide the name of the Managed Disk
$diskName = 'yourDiskName'
#Provide the size of the disks in GB. It should be greater than the VHD file size.
$diskSize = '128'
#Provide the storage type for Managed Disk. PremiumLRS or StandardLRS.
$storageType = 'PremiumLRS'
#Provide the Azure region (e.g. westus) where Managed Disk will be located.
#This location should be same as the storage account where VHD file is stored
#Get all the Azure location using command below:
#Get-AzureRmLocation
$location = 'westus'
#Provide the URI of the VHD file (page blob) in a storage account. Please not that this is NOT the SAS URI of the storage container where VHD file is stored.
#e.g. https://contosostorageaccount1.blob.core.windows.net/vhds/contosovhd123.vhd
#Note: VHD file can be deleted as soon as Managed Disk is created.
$sourceVHDURI = 'https://contosostorageaccount1.blob.core.windows.net/vhds/contosovhd123.vhd'
#Provide the resource Id of the storage account where VHD file is stored.
#e.g. /subscriptions/6472s1g8-h217-446b-b509-314e17e1efb0/resourceGroups/MDDemo/providers/Microsoft.Storage/storageAccounts/contosostorageaccount
#This is an optional parameter if you are creating managed disk in the same subscription
$storageAccountId = '/subscriptions/yourSubscriptionId/resourceGroups/yourResourceGroupName/providers/Microsoft.Storage/storageAccounts/yourStorageAccountName'
#Set the context to the subscription Id where Managed Disk will be created
Select-AzureRmSubscription -SubscriptionId $SubscriptionId
$diskConfig = New-AzureRmDiskConfig -AccountType $storageType -Location $location -CreateOption Import -StorageAccountId $storageAccountId -SourceUri $sourceVHDURI
New-AzureRmDisk -Disk $diskConfig -ResourceGroupName $resourceGroupName -DiskName $diskName
и сделать его снимокпосле. Источник .Не уверен, но снимки могут быть недоступны для неуправляемых дисков (не цитируйте меня по этому вопросу).