Objects are basic units for user operations in OSS. The maximum size of an object is 48.8 TB. The number of objects stored in a bucket is not limited.

After you create a bucket in a region, the objects uploaded to the bucket are retained in this region, unless you manually migrate the objects to another region. You can access the objects anywhere if you have access permissions.

You must have write permissions on a bucket to upload objects to the bucket. Uploaded objects are displayed as files or folders in the OSS console. This topic describes how to create, manage, and delete objects and folders in the OSS console.