HP Integrity NonStop H-Series - Manual (Page 80)

Planning the DSM/SCM System Environment and
User Security
DSM/SCM User’s Guide — 529846-014
4 - 11
Guidelines for Assigning DSM/SCM Security
Settings
Small Work Environments
In small work environments—those where DSM/SCM manages only one or two
systems—one person can perform the tasks of the planner, database administrator,
and operator. If the planner has time constraints, or if preferable, a separate person
can assume the duties of the operator.
Large Work Environments
In large work environments—those where DSM/SCM manages more than two systems
—several people might need to assume the different DSM/SCM roles. The nature of
these assignments can vary depending on the situation. Generally each host system
should have one planner and one database administrator. The number of operators
can depend on several factors, including available personnel, time constraints, and
whether systems are remote or local.
Large Sites With Networked Systems
In a work environment where DSM/SCM manages multiple systems in the same
location, you ideally assign DSM/SCM roles to separate people. Performing upgrades
can be time-consuming for one person to maintain too many systems at once. You
might not need DSM/SCM for weeks at a time, depending on your upgrade schedule.

Planners
You should need only one planner to plan and oversee the configuration of all
systems under a host system. This eliminates any potential confusion of having
multiple planners carrying out tasks on the same systems. However, you can
configure multiple planners if multiple host systems exist in a single work
environment. Each planner can independently maintain different DSM/SCM
systems.

Database administrators
The database administrator should be a separate individual from the planner. The
planner can still oversee the maintenance of security, databases, and the archive
that the database administrator carries out, but without expending time on the
actual duties. You probably need only one database administrator to cover all
systems in a large networked site. However, you can configure multiple database
administrators if the site has multiple host systems.

Operators
The number of operators depends on the personnel you have available. With a
large number of systems, you probably need several operators to carry out
updates in a timely manner. If you have separate systems for development and
production, it is advantageous to have separate operators for each. If you have a
large number of development systems and a large number of production systems,
you can configure several operators for each. For example, if you have six