Clustered systems provide a uniform computing environmentthat is highly scalable, highly available, and secure. It is criticalthat there be a single set of authorized users and that these usersbe able to have processes executing on any cluster member.
To achieve a uniform computing environment, a cluster relieson the following components operating across all cluster members:
Lock manager system services ($ENQ/$DEQ)(to provide a framework for building distributed applications)
File and record management subsystems (coordinatedthrough the lock manager)
Batch and print services
Process control system services
Security auditing system
Within a cluster, authorization data for users and the securityprofiles of objects must be consistent across all nodes so thateach cluster member makes the same access control decision whenpresented with a particular user's access request for a particularobject. Building a Common Environment and Synchronizing Authorization Data describehow to achieve a single security domain.
HP OpenVMS Guide to System Security
Security for the System Administrator