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HP OpenVMS Systemsask the wizard |
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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 performance requirements. 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 performs poorly. 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.
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