In order to view current disk performance SKU in Azure, type:

az disk show --resource-group yourresourcegroup --name yourdiskname --query sku

In order to view all properties of a managed disk in Azure type:

az disk show --resource-group yourresourcegroup --name yourdiskname

After an initial deployment, you might find yourself in need to change the size of the Azure managed disk you’ve just deployed. For example, if you want to change the size of it to 64GB, type:

az disk update --resource-group yourresourcegroup --name yourdiskname --size-gb 64

The following command helps you create a basic Standard_LRS managed disk in Azure:

az disk create --resource-group yourresourcegroup --name yourdiskname --sku "Standard_LRS" --size-gb 32