This topic describes the billable items in ApsaraDB for OceanBase and their pricing formulas.
The charges incurred for an ApsaraDB for OceanBase instance depend on the following factors related to the instance: region, deployment solution, node specifications, usage duration, data disk space, log disk space, and storage duration.
Deployment solutions
ApsaraDB for OceanBase supports multiIDC deployment, dualIDC deployment, and singleIDC deployment. For more information, see Deployment solutions.
MultiIDC deployment: three fullfeatured replicas.
DualIDC deployment: two fullfeatured replicas and one logonly replica.
SingleIDC deployment: two fullfeatured replicas and one logonly replica.
Billable items
The following table describes the billable items of ApsaraDB for OceanBase and the pricing formulas.
Billable item  Description  Supported billing method  Pricing formula 
Compute node 

 Total price of compute nodes = Catalog unit price × Number of nodes/3 × Usage duration 
[Storage] Data disk (Storage size on the purchase page) 
 The billing method for storage space is the same as the billing method you selected for compute nodes when you purchased the cluster.
 Total price of the data disk = Catalog unit price × Number of fullfeatured replicas/3 × Usage duration 
[Storage] Log disk 

 Total price of the log disk = Catalog unit price × Number of nodes × Usage duration 
[Storage] Data disk for tenant instances (postpaid) 
 The billing method for storage space is the same as the billing method you selected for compute nodes when you purchased the tenant instance.
 Total price of the data disk for a tenant instance = Catalog unit price × Number of fullfeatured replicas/3 × Usage duration 
Backup storage space 


Total price of a cluster instance = Total price of compute nodes + Total price of the data disk + Total price of the log disk
Total price of a tenant instance = Total price of compute nodes (prepaid) + Total price of the data disk for the tenant instance (postpaid)