Azure Azure Compute Management

Add multiple managed disks to Azure RM VM

Add multiple managed disks to Azure RM VM

In this post I have created a PowerShell script to help add multiple managed disks to an Azure RM Virtual Machine.

The script to add multiple managed disks will prompt you to login to an Azure RM account, then it will query the subscriptions and ask you to select the desired. After that it will query the available VMs and promt to select the target VM from the VM list.

At this point I am checking the OS disk and define the storage type of the data disk. If we need to change the storage type we can check the comments at step 4. e.g. If the OS disk is Premium and you want Standard data disks.

The next step is to ask for disk size. You can check the sizes and billing here: https://docs.microsoft.com/en-us/azure/virtual-machines/windows/managed-disks-overview#pricing-and-billing

Finally it will ask for the number of the disk we need to create. After this input the script will create the disks, attach them to the VM and update it.

The Script:

# 1. You need to login to the Azure Rm Account
Login-AzureRmAccount

# 2. The script will query the Subscriptions that the login account has access and will promt the user to select the target Subscription from the drop down list
$subscription = Get-AzureRmSubscription | Out-GridView -Title "Select a Subscription" -PassThruSelect-AzureRmSubscription -SubscriptionId $subscription.Id

# 3. he script will query the available VMs and promt to select the target VM from the VM list
$vm = Get-AzureRmVM | Out-GridView -Title "Select the Virtual Machine to add Data Disks to" -PassThru

# 4. I set the storage type based on the OS disk. If you want to spesify somehting else you can cahnge this to: $storageType = StandardLRS or PremiumLRS etc.
$storageType = $VM.StorageProfile.OsDisk.ManagedDisk.StorageAccountType

# 5. The script will promt for disk size, in GB
$diskSizeinGB = Read-Host "Enter Size for each Data Disk in GB"

$diskConfig = New-AzureRmDiskConfig -AccountType $storageType -Location $vm.Location -CreateOption Empty -DiskSizeGB $diskSizeinGB

# 6. Enter how many data disks you need to create
$diskquantity = Read-Host "How many disks you need to create?"

for($i = 1; $i -le $diskquantity; $i++)
{
	$diskName = $vm.Name + "-DataDisk-" + $i.ToString()
	$DataDisk = New-AzureRmDisk -DiskName $diskName -Disk $diskConfig -ResourceGroupName $vm.ResourceGroupName
	$lun = $i - 1
	Add-AzureRmVMDataDisk -VM $vm -Name $DiskName -CreateOption Attach -ManagedDiskId $DataDisk.Id -Lun $lun
}

Update-AzureRmVM -VM $vm -ResourceGroupName $vm.ResourceGroupName

You can download the script from here: AddManagedDisks

 


about me

 

Pantelis Apostolidis | pantelis@e-apostolidis.gr

The post Add multiple managed disks to Azure RM VM appeared first on Apostolidis IT Corner.

About the author

Pantelis Apostolidis

Pantelis Apostolidis is a technology enthusiast, currently working as a Solutions Architect at Office Line SA . His educational background includes a diploma in Tourism Management from the Technological Educational Institute (TEI) of Thessaloniki and a diploma in Computer Network Engineering from the IEK of Thessaloniki. At his free time he enjoys spending time with his family, plays guitar, tennis & basketball.

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