The Data Access Service (DAS) process is Sentinel Server's persistence service and provides an interface to the database. It provides data driven access to the database backend.
DAS is a container, composed of five different processes. Each process is responsible for different types of database operations. These processes are controlled by the following configuration files:
das_binary.xml: Used for event and correlated event insertion operations
das_query.xml: All other database operations
activity_container.xml: Used for executing and configuring activity service
workflow_container.xml: Used for configuring the workflow (iTRAC) service
das_rt.xml: Used for configuring the Active Views function within the Sentinel Control Console
DAS receives requests from the different Sentinel processes, converts them to a query against the database, processes the result from the database and converts it that back to a reply. It supports requests to retrieve events for Quick Query and Event Drill Down, to retrieve vulnerability information and advisor information and to manipulate configuration information. DAS also handles logging of all events being received from the Collector Manager and requests to retrieve and store configuration information.