The Question is:
We are running Open VMS Version 7.1 on an
ALPHA 4000 Server. What is the recommended /
ideal number of interactive users that should
be set for the system ?
The Answer is :
Somewhere between zero users and the architectural maximum user
limit of 8192, as limited by user performance expectations, by
available system resources and by non-interactive application
Typical limitations involve the available pagefile and the increased
pagefile usage as users or applications are added, and the amount
of physical memory available -- factors such as the processor usage
and the performance requirements of specific users and specific
non-interactive application tasks are clearly also involved.
An interactive user entering data into a forms menu terminal display
will likely require far less system resources than the OpenVMS Wizard
might require for a full OpenVMS system build, for instance -- without
some idea of user loads and user expectations, there can be no specific
answer. You might thus have a system with a large number of users
that performs nicely, or a system with comparatively few users that
For a systematic approach to the question, please review the details
available in the performance manual. You will find details on how
to determine a baseline, and how to measure loading and increases.
Based on such local information and local data, you can -- assuming
incremental increases -- predict requirements as users are added.