OSS is compatible with Amazon S3 API operations, so your existing S3 SDKs and tools work with OSS without rewriting application logic.
Usage notes
Limits
OSS supports the S3 protocol. You can use S3 SDKs or S3-compatible tools to create Buckets and upload Objects. Bandwidth, queries per second (QPS), and other operational limits follow OSS performance metrics. For details, see Limits.
Client configurations
After migrating to OSS, continue using the S3 API by making two changes to your client:
Replace credentials. Set the AccessKey ID and AccessKey secret from your Alibaba Cloud account or RAM user.
Replace the endpoint. Point your client to the OSS endpoint for your region. For the full list, see Regions and endpoints.
Migrate data
Use Data Online Migration to transfer objects from Amazon S3 to OSS. For step-by-step instructions, see Migrate data from AWS S3 to Alibaba Cloud OSS.
What's next
Limits — Review OSS bandwidth and QPS limits before running large-scale migrations.
Regions and endpoints — Find the endpoint for your target region.