The Clustering and Security Mechanisms of a Database Computer (DBC).

Abstract : The database computer (DBC) is a specialized back-end computer which is capable of managing data of 10 to the 10th power bytes in size and supporting known data models such as relational, network, hierarchical and attributed-based models. It is also one of the first database machines to have a built-in security mechanism for access control and a clustering mechanism for performance enhancement. In this report, we demonstrate how the important and essential functions of access control and clustering are carried out in DBC. Since these functions are carried out mostly in the database command and control processor (DBCCP) and the security filter processor (SFP), the report will be devoted largely to these two components of DBC.