When the pay-as-you-go billing method is used for the storage of your clusters, you do not need to specify the storage capacity when you purchase the clusters. The storage capacity is automatically increased when the amount of data increases. You are charged for only the storage that you use. Fees are deducted on an hourly basis.
Scenarios
Your Alibaba Cloud account has a small amount of data stored in the clusters of specific regions, and the amount of data generated by your business is prone to frequent fluctuations.
Use the pay-as-you-go billing method
For more information about how to use the pay-as-you-go billing method for your clusters, see Purchase a pay-as-you-go cluster and Purchase a subscription cluster.