We recommend that you purchase a resource plan when you estimate your resource usage.
For example, you can estimate that you are about to use 100 GB of Standard locally redundant storage (LRS) capacity in the following three months for all buckets of your Alibaba Cloud account. You can consider purchasing a Standard (LRS) storage plan of 100 GB for three months to offset the storage fees of the Standard LRS objects. Compared with the pay-as-you-go billing method, you can reduce costs if you use a storage plan to offset storage fees.