A volume-based licensing model is a licensing model that charges the customer based on the amount of data or resources that they consume or use. A volume-based licensing model is suitable for an laaS (Infrastructure as a Service) environment, as it allows the customer to pay only for what they need and scale up or down as their demand changes. A volume-based licensing model can provide financial benefits for the customer, such as lower upfront costs, greater flexibility, and more predictable billing.