This topic describes the billing of backups for ApsaraDB RDS for MySQL instances.
FeesIf 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.
- 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:
- If you want to query the unit price for backups that are retained for up to 730 days, go to the Pricing tab of the ApsaraDB RDS for MySQL product homepage.and view the unit price in the Backup item of the Additional Function section.
- If you want to query the unit price for archived backups that are retained for more than 730 days,right-click the following link: Billing of archived backups.
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.