The backup and recovery features of PolarDB are provided free of charge. However, backup files consume storage space. This topic describes the billing rules for the storage space that is consumed by PolarDB backup files.
Free quota
PolarDB Standard Edition provides a free quota for backup storage. If your backup storage usage exceeds the free quota, PolarDB charges a fee. This fee is calculated based on the storage capacity and retention period of your backup files, which include data and logs.
Backup type | Free quota |
Data backup | Database storage usage × 50% |
Log backup | 100 GB |
Billing rules
The Chinese mainland | China (Hong Kong) and regions outside China | Hourly fee calculation method |
USD 0.000032/GB/hour | USD 0.000045/GB/hour | Hourly fee = Total backup size × Hourly price For example, if the total backup size is 1000 GB, the hourly fee is or USD 0.000032. Calculation: 1,000 GB × USD 0.000032/GB/hour = USD 0.032 |