This tutorial describes how to migrate data from an Amazon Simple Storage Service (Amazon S3) bucket to an Alibaba Cloud Object Storage Service (OSS) bucket.
If you want to migrate data from an Amazon S3 bucket to an Alibaba Cloud OSS bucket by using a leased line, see Overview.
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 Transport 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.
The following figure shows the migration process.
- If the migration source supports 32-bit CRC (CRC-32), CRC-64, or MD5 verification, the system performs end-to-end verification by using the verification method of the migration source.
- If the migration source does not support CRC-32, CRC-64, or MD5 verification, the system does not verify the data downloaded from the migration source to the Data Online Migration service. In this case, the downloaded data may be incorrect or incomplete. However, the system still verifies the data migrated from the Data Online Migration service to the migration destination by using CRC-64.
To ensure data security and consistency, we recommend that you use HTTPS to migrate data.
The following figure shows how to create a migration job.
When you read data from the source data address during a migration job, you are charged for outbound Internet traffic by the storage service provider of the source data address.
References
This tutorial contains the following topics: