Configure cross-region replication

Procedure

1. Log on to the OSS console.
2. In the left-side bucket list, click the name of the bucket that you want to configure cross-region replication.
3. Click the Basic Settings tab and find the Cross-Region Replication (CRR) region.
4. Click Enable to open the Cross-Region Replication (CRR) dialog box.
5. Select the region and the name of the target bucket.
   Note

   • The source bucket and target bucket in synchronization must be in different regions.
   • Two buckets with cross-region replication enabled cannot be synchronized to other buckets.
6. Select from the following two options for Applied To.
   • All Files in Source Bucket: Synchronizes all objects in the bucket to the target bucket.
   • Files with Specified Prefix: Synchronizes the objects with specified prefixes in the bucket to the target bucket. For example, you have a folder named management in the root directory of a bucket and a folder named abc under management. If you want to synchronize objects in the abc folder, add the management/abc as the prefix. You can add a maximum of five prefixes.
7. Select from the following options for Operations:
   • Add/Delete/Change: Synchronizes all data in the bucket (including the add, change, and delete operations) to the target bucket.
   • Add/Change: Synchronizes only added or changed data in the bucket to the target bucket.
8. Select whether to Replicate Historical Data.
   Note If you enable Replicate Historical Data, objects replicated from the source bucket may overwrite the objects with the same names in the target bucket. Therefore, ensure the data in the source and target buckets is consistent before replication.
9. Click OK.