Blob storage and Sitecore media items

Current version: 10.1

Sitecore uses blob technology for storing Sitecore Media Library assets. The blobs are stored in the SQL Database by default. As an alternative, Microsoft Azure Blob Storage offers a less expensive approach to storing media files, as well as performance enhancements. Using Microsoft Azure Blob Storage also helps to maintain smaller Sitecore databases.

As a Sitecore content author, you can manage your media files (images, videos, audios, PDFs, and text documents), in your Sitecore media library. Whenever you upload a media file to the media library, Sitecore stores the media file as a blob and creates an associated media item in Content storage. The media item stores the metadata of the media file, for example: size, height, width, and blob ID.

Refer to the following diagram for an overview of the process:

Sitecore blob storage overview

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