Help Center/ Relational Database Service_RDS for SQL Server/ User Guide/ Data Backups/ Managing Backups/ Transferring Backups to a Specified OBS Bucket
Updated on 2026-10-13 GMT+08:00
View PDF
Share

Transferring Backups to a Specified OBS Bucket

Scenarios

You can transfer generated automated or manual full backups and incremental backups to specified OBS buckets, or configure automatic backup transfer to OBS buckets.

To use automatic transfer to OBS buckets, submit a service ticket.

Constraints

  • Federated accounts cannot be used to transfer backups to OBS.
  • Only physical backup files can be transferred to a specified OBS bucket.
  • When being transferred to an OBS bucket, encrypted backups will be decrypted first.
  • The maximum size of a single backup that can be transferred each time is 10 TB. If this limit is exceeded, the transfer task will fail.
  • Ensure that the target OBS bucket is available and has enough space. Otherwise, the transfer task will fail.
  • Expired or deleted backups will not be transferred. Set an appropriate backup retention period.
  • Deleting the instance during a transfer will cause the transfer task to fail.
  • Stopping or rebooting the instance, or changing its instance class during the transfer may cause the transfer task to fail.
  • Permissions and system roles must be configured. For details, see Permissions.
  • The transfer speed depends on the OBS upload rate, and the estimated time required may fluctuate.
  • Backups transferred to OBS cannot be directly restored to RDS for SQL Server instances.
  • Automatic transfer takes effect only for backups generated on and after the day when you enable the function. It does not apply to existing backups.

Billing

Transferring backups to OBS buckets will incur fees. For details, see OBS Pricing Details.

Procedure

  1. Log in to the RDS console.
  2. Click in the upper left corner and select a region.
  3. On the Instances page, click the target instance name to go to the Summary page.
  4. In the navigation pane, choose Backups & Restorations.
  5. Select the backups to be transferred and click Transfer to OBS Bucket.
  6. In the displayed dialog box, select an OBS bucket, specify a folder directory, and click OK.

    Figure 1 Transfer to OBS Bucket

  7. After the task is submitted, return to the Instances page, choose Backups > Transfer Tasks, and check the execution result of the manual transfer task.

    Figure 2 Checking transfer tasks

  1. Log in to the RDS console.
  2. Click in the upper left corner and select a region.
  3. On the Instances page, click the target instance name.
  4. In the navigation pane, choose Backups & Restorations.
  5. Click Configure Automatic Backup Transfer.
  6. In the displayed dialog box on the right, set required parameters and click OK.

    Figure 3 Automatic transfer
    Table 1 Parameter description

    Backup

    Parameter

    Description

    Automated backup, manual backup, and incremental backup

    Destination OBS Bucket

    Select the created OBS bucket.

    Destination Bucket Prefix

    A destination bucket prefix indicates where you want to store your backups in an OBS bucket. It is in a folder structure and ends with a slash (/).

    Transfer Period

    Backups are transferred by day. Select at least one day of the week. The transfer period uses the standard UTC time zone. Backups generated on the current day will be automatically transferred to the destination OBS bucket the next day.

    For example, if you select Monday, the backups generated on Monday will be automatically transferred to the destination OBS bucket on Tuesday.

    Automatic transfer takes effect only for backups generated on and after the day when you enable the function. It does not apply to existing backups.

  7. After the task is submitted, you can return to the instance list and view the execution result of the automatic transfer task on the next day under the Backups > Download and Transfer tab page.
Parent Topic: Managing Backups