This topic describes the billing of backups for ApsaraDB RDS for MySQL instances.

Fees

If the size of the backup files of an instance does not exceed the free quota, you are not charged for the backups. For more information, see Size of backup. If the free quota is exceeded, the backup fees are calculated by using the following formula: Backup fees per hour = (Backup file size - Free quota) x Backup unit price.

Description:

  • Backup file size: the total size of data and log backup files. You can view the backup file size in the lower-right corner of the Basic Information page of the instance.
  • Free quota: two times the storage capacity of an instance that uses standard SSDs or enhanced SSDs, or half the storage capacity of an instance that uses local SSDs. The calculated value is rounded up to the nearest integer. The free quota is measured by GB. You can view the free quota of your instance in the lower-right corner of the Basic Information page of the instance.
  • Backup unit price:

Note

Backup fees depend on the sizes of backup files but not on storage usage. This is because backup files are not stored in the disks of your instance.

When you analyze the costs of your instance backups, check the size of the backup files instead of the storage usage.

Reduce backup fees

  • Reduce backup file sizes

    You can delete backup files or reduce the frequency of backups. For more information, see Size of backup.

  • Increase the free quota

    You can expand the storage capacity of your instance. For more information, see Change the specifications of an ApsaraDB RDS for MySQL instance.

    The free quota varies based on the storage capacity of your instance. For example, if you scale up an instance that uses local SSDs from 150 GB to 300 GB, the free quota increases from 75 GB to 150 GB.