What Is S3?
2026-10-27
When it comes to storing truly large volumes of data-such as backups, analytical results, media files, or datasets for AI and machine learning-object storage is generally the most suitable model. In object storage, files are stored as independent objects, each with its own unique key and metadata. This approach eliminates the need for a complex hierarchy and can therefore improve the efficiency of data management.
The best-known object storage service is probably Amazon Web Services’ S3, or Simple Storage Service. The term “S3” is also commonly used to describe enterprise storage systems that are compatible with the AWS solution. S3 storage can be accessed through an API over HTTP or HTTPS, allowing applications to work with the storage directly without mounting a file system on a server. S3-compatible object storage typically also includes additional features such as protection against accidental deletion or modification, file lifecycle management, data replication, and more.