In order to display the properties of a specific resource group in Azure type:

az group show --name yourresourcegroup --output tsv

Check disk performance SKU a particular disk is using by typing in your PowerShell session:

(Get-AzDisk -ResourceGroupName yourresourcegroup -DiskName yourdiskname).Sku

After an initial deployment, you might run into the need of changing the initial disk performance SKU in Azure. In the example below, we’re updating the SKU from Standard_LRS to Premium_LRS. In your PowerShell session type:

New-AzDiskUpdateConfig -Sku Premium_LRS | Update-AzDisk -ResourceGroupName yourresourcegroup -Name yourdiskname

It comes helpful to know how to update the size of a newly created disk in Azure. So, in your PowerShell session type:

New-AzDiskUpdateConfig -DiskSizeGB 64 | Update-AzDisk -ResourceGroupName yourresourcegroup -DiskName thenameofyourdisk

Verify:

Get-AzDisk -ResourceGroupName yourresourcegroup -Name thenameofyourdisk

Sometimes it helps to create a resource group in Azure that has the same location as a specific desired resource group. Open an Azure PowerShell session and type:

$location = (Get-AzResourceGroup -Name theresourcegroupiwanttocopyfrom).Location
$rgname = 'thenewresourcegroup'
New-AzResourceGroup -Name $rgname -Location $location