When you use Database Backup to back up data, Database Backup (DBS) charges you based on the volume of backup data.

Subscription

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)
micro 20 hours 40 5 0.117 7 0.175
small 5 hours 400 22 0.055 33 0.083
medium 2.5 hours 800 35 0.039 53 0.059
large 1.5 hours 1600 56 0.024 84 0.036
xlarge 1 hour 140 Free of charge 209 Free of charge
xsmall

(file backup)

1 hour 8 Free of charge 12 Free of charge
Note
  • 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.

For example, Company A plans to perform full backups for a 150 GB database four times each month. The estimated total backup volume in the current month is 600 GB (150 GB × 4). Company A can purchase a backup schedule of one of the following specifications. The price is applicable in mainland China.
  • 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.
Note In this example, the small specification has the lowest price. However, if you require better backup and restoration performance, we recommend that you purchase a higher specification.