Novell SENTINEL RAPID DEPLOYMENT 6.1 - 12-2009 User Manual page 397

Sentinel Server Architecture
Figure A-9
Sentinel Service (Watchdog)
Watchdog is a Sentinel process that manages other Sentinel processes. If a process other than
Watchdog stops, Watchdog reports this and then restarts that process.
If this service is stopped, it stops all Sentinel processes on that machine. It executes and reports the
health of other Sentinel processes. This process is launched by the Sentinel service.
Data Access Service (DAS) Process
The Data Access Service (DAS) is Sentinel server's persistence service and provides an interface to
the database. It provides data-driven access to the database back-end.
DAS is a container composed of two different processes. Each process is responsible for different
types of database operations.
DAS Core: DAS core container, which performs the following functions:
General Sentinel Service operations including login and historical queries.
Provides the server-side functionality for Active Views.
Calculates event data summaries that are used in reports.
Provides the server-side functionality for Sentinel iTRAC.
Provides the server side of the SSL proxy connection to Sentinel server.
DAS Binary: Performs event database insertion.
Sentinel 6.1 Rapid Deployment Architecture 397