Overview

CBR supports both pay-per-use and yearly/monthly billing as well as resource packages. You can change to yearly/monthly billing if pay-per-use billing no longer meets your needs. For the changeable billed items, see Billed Items.

**Table 1** Differences between billing modes
Billing Mode	Yearly/Monthly	Pay-per-Use
Payment	Prepaid	Postpaid
Billing Method	Billed by the subscription term you purchase	Calculated by the hour but billed every day
Billed Items	Disk backup vaults, server backup vaults, SFS Turbo backup vaults, hybrid cloud backup vaults, and replication vaults	Disk backup vaults, server backup vaults, SFS Turbo backup vaults, hybrid cloud backup vaults, replication vaults, and cross-region replication traffic
Changing the Billing Mode	Yearly/Monthly can be changed to pay-per-use only after the yearly/monthly subscription duration ends.	Pay-per-use can be changed to yearly/monthly.
Changing the Specifications	Vault capacities can only be expanded.	Vault capacities can be expanded.
Application Scenarios	Recommended for resources expected to be in use long-term. A cost-effective option for scenarios where the resource usage duration is predictable.	Recommended when the resource demands are likely to fluctuate and you want more flexibility.