Cloud Backup:Billing methods and billable items

The following tables describe the billable items of Cloud Backup.

• Backup fees

  Fee	Billable item	Billing method	Unit price
  Client usage fee	Cloud Backup clients for file backup You are charged based on the number of servers or ECS instances on which the Cloud Backup client is installed. Cloud Backup clients for SAP HANA instance backup You are charged based on the number of instances on which the Cloud Backup client is installed. Cloud Backup clients for ECS instance backup You are charged based on the number of ECS instances that are specified in a backup plan. The fees for the storage usage of ECS snapshots that are used by this feature are included into your ECS bills. If you enable cross-region replication, the fees for the storage usage of ECS snapshots that are replicated to the destination region and the fees for cross-region traffic are also included into your ECS bills. Cloud Backup clients for Object Storage Service (OSS) backup, NAS backup, and Tablestore backup Free of charge. Cloud Backup clients for VMware backup You are charged based on the disk size allocated to the source virtual machine (VM). Cloud Backup clients for ECS disaster recovery You can use the ECS disaster recovery feature free of charge for 30 days. You are charged for the ECS instances, the Elastic Block Storage (EBS) disks, and the ECS snapshots that are used when you implement disaster recovery for ECS resources. Migration of VMs to the cloud You are charged based on the number of migrated VMs. Cloud Backup clients for SQL Server database backup (old version) You are charged based on the number of instances on which the Cloud Backup client is installed.	Pay-as-you-go	The pricing is the same for all regions. For more information about the pay-as-you-go billing method, see Cloud Backup Pricing.
  Storage usage fee	Usage of backup vaults Cloud Backup deduplicates and compresses data for backup. You are charged for the backup storage based on the storage space occupied by the data that is deduplicated and compressed. You can back up an OSS bucket or a NAS file system free of charge within 30 days after you create a backup plan. Usage of the Archive tier for backup vaults Backup vaults are automatically archived. You are charged based on the size of the source data that is transferred from the Standard tier to the Archive tier. The minimum billable size of the data stored at the Archive tier is 1 MB. For a source object or file whose size is less than or equal to 1 MB, you are charged based on 1 MB. For a source object or file whose size is greater than 1 MB, you are charged based on the actual size. Volume of data restored from the Archive tier for backup vaults If you restore data from a backup and restore point at the archive layer, you are charged based on the actual size of the restored data. The minimum billable size of the data stored at the archive layer is 1 MB. For an object or file whose size is less than 1 MB, you are charged based on 1 MB. For an object or file whose size is greater than or equal to 1 MB, you are charged based on the actual size. Note Mirror vaults can be used in the same way as backup vaults. The pricing for the storage usage of backup vaults is the same as the pricing for the storage usage of mirror vaults.	Pay-as-you-go	The pricing is the same for all regions. For more information about the pay-as-you-go billing method, see Cloud Backup Pricing.

• Database backup fees

  Fee	Billable item	Billing method	Unit price
  Rental fee of database backup vaults	Rental of database backup vaults You can use the database backup vaults free of charge for 30 days. A free capacity of 100 GB is provided for each backup vault per month.	Pay-as-you-go	The pricing is the same for all regions. For more information about the pay-as-you-go billing method, see Cloud Backup Pricing.
  Storage usage fee	Storage usage of database backup vaults You can use the database backup vaults free of charge for 30 days. After the free period ends, you are charged based on tiered pricing. Note Mirror vaults can be used in the same way as backup vaults. The pricing for the storage usage of backup vaults is the same as the pricing for the storage usage of mirror vaults.	Pay-as-you-go	The pricing is the same for all regions. For more information about the pay-as-you-go billing method, see Cloud Backup Pricing.

• Traffic fees

  Fee	Description	Billing method	Unit price
  Outbound traffic fee	When you restore data from Cloud Backup to your on-premises servers over the Internet, you are charged for the download traffic. When you restore data from Cloud Backup to ECS instances over the internal network of Alibaba Cloud, you are not charged for the download traffic. When you back up data to Cloud Backup, you are not charged for the upload traffic.	Pay-as-you-go	The pricing is the same for all regions. For more information, see Cloud Backup Pricing.
  Traffic fee of cross-region replication for backup vaults	You are charged for the traffic that is generated when you replicate backup data from backup vaults to mirror vaults.	Pay-as-you-go	The pricing is the same for all regions. For more information, see Cloud Backup Pricing.
  Traffic fee of cross-region replication for disaster recovery	You are charged for the traffic that is generated when you replicate ECS disk data to disaster recovery sites.	Pay-as-you-go	The pricing is the same for all regions. For more information, see Cloud Backup Pricing.