How to Resize Azure VM Disk using PowerShell?

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Know how to check the Virtual machine Disk size and also how to resize managed Disk via PowerShell script in Azure.

PowerShell Script to Check VM Disk Size:

$ResourceGroupName = "_add_resource_group_name_"
$VMName = "_add_vm_name_"
$VM = Get-AzVM -ResourceGroupName $ResourceGroupName -Name $VMName
Get-AzDisk -ResourceGroupName $ResourceGroupName -DiskName $VM.StorageProfile.OsDisk.Name | Select-Object Name,OsType,DiskSizeGB

PowerShell Script to Resize VM Managed Disks:

$ResourceGroupName = "_add_resource_group_name_"
$VMName = "_add_vm_name_"
 
## Store VM Details to $VM Variable
$VM = Get-AzVM -ResourceGroupName $ResourceGroupName -Name $VMName

## Deallocate the Azure VM
Stop-AzVM -ResourceGroupName $ResourceGroupName -Name $VMName

## Update Disk Size
$osDisk= Get-AzDisk -ResourceGroupName $ResourceGroupName -DiskName $VM.StorageProfile.OsDisk.Name
$osDisk.DiskSizeGB = "_add_new_size_"
Update-AzDisk -ResourceGroupName $ResourceGroupName -Disk $osDisk -DiskName $osDisk.Name

## Start the Azure VM
Start-AzVM -ResourceGroupName $ResourceGroupName -Name $vmName