When you use Database Backup to back up data, Database Backup (DBS) charges you based on the volume of backup data.
DBS supports a variety of backup schedule specifications to provide different backup and restoration performance, free backup quotas, and billing standards.
|Backup schedule specification||Estimated time required to back up 100 GB of data||Free quota for data backup (GB/month)||Configuration fee for mainland China||Configuration fee for the Hong Kong (China) region and regions outside China|
|Configuration fee (USD/month)||Unit price of excess backup data (USD/GB)||Configuration fee (USD/month)||Unit price of excess backup data (USD/GB)|
|xlarge||1 hour||∞||140||Free of charge||209||Free of charge|
|1 hour||∞||8||Free of charge||12||Free of charge|
- Higher specifications offer lower unit prices and higher backup and restoration performance. For more information, see Backup and recovery performance tests.
- Backup schedule specifications cannot be downgraded.
- Each calendar month, you are allocated a free quota for data backup. The remaining free quota does not roll over into the next month if you have not consumed all of it within the month.
- If the total amount of data that you back up during a month exceeds the free quota, the excess data is charged based on the corresponding unit price.
The following formula is used to calculate the backup fees for a subscription backup schedule: Backup fees = Configuration fees + (Actual backup data size - Free quota for data backup) × Unit price of the specification.
- Fees for micro: USD 5 + (600 GB - 40 GB) × USD 0.117/GB = USD 70.52
- Fees for small: USD 22 + (600 GB - 400 GB) × USD 0.055/GB = USD 33
- Fees for medium are USD 35. The actual backup data size is less than the free quota. No additional fees are incurred.