The Data Storage and Indexing Area contains services dedicated to store content according to a number of known store/access paradigms. D-NET developers can chose which kind of content management system to adopt, based on the different data processing actions to be accomplished in their applications. They can chose among the following paradigms: a triple store, a relational database, an object store, a metadata store, and a full-text index.
Specifically the services are:

• Database Service. Based on Postgres.
• Metadata Store Service. Based on MongoDB.
• Object Store Service. Based on MongoDB.
• Full-Text Index Service. Based on Apache Solr.
• NoSQL Service. Based on HBase and supporting an Hadoop engine.