This tutorial describes how to migrate data between Alibaba Cloud Object Storage Service (OSS) buckets that are owned by the same account or different accounts and deployed in the same region or different regions.
Overview
Alibaba Cloud Data Online Migration is a data channel between different storage services. Data Online Migration can be used to migrate data from third-party data stores to OSS or between OSS buckets.
To use Data Online Migration, you need to only log on to the Data Online Migration console, specify information about the source and destination OSS buckets, and then create a migration job. After the migration job starts, you can manage the job in the console. For example, you can view the progress and traffic information of the job.
Flowcharts
Migration process
The following figure shows the migration process.
To ensure data security and consistency, we recommend that you use HTTPS URLs.
After a migration task is complete, you must check whether the data at the destination data address is consistent with the data at the source data address.
Make sure that you verify the migrated data at the destination data address after a migration task is complete. If you delete the data at the source data address before you verify the migrated data at the destination data address, you are liable for the losses and consequences caused by any data loss.
Process of creating a migration job
The following figure shows how to create a migration job.
If the source or destination OSS bucket resides in the same region as the region that you select in the Data Online Migration console, we recommend that you use the corresponding internal endpoint for data migration. If you select internal endpoints when you create the source and destination data addresses, data is uploaded and downloaded over the Alibaba Cloud internal network. In this case, you are not charged for downloading or uploading data.
If the source or destination OSS bucket does not reside in the same region as the region that you select in the Data Online Migration console, you can use only the corresponding public endpoint for data migration. If you select public endpoints when you create the source and destination data addresses, data is uploaded and downloaded over the Internet. During data migration, you are charged for downstream traffic fees on the migration source, but you are not charged for uploading data.
For data migration between OSS buckets, the buckets in which Archive or Cold Archive objects reside are not supported as migration sources.
References
This tutorial contains the following topics: