OpenView Network Node Manager: Designing and Implementing an Enterprise Solution

Platform Sizing

A first estimate can be made using HP’s publication, Network Node Manager Performance and Configuration Guide. This document provides a methodology for sizing a system based on the following considerations:

• number of objects

• number of nodes

• collection station overhead

• management console overhead

• number of ovw sessions

• number of web-based sessions

• amount of SNMP data being collected

• alarm rate

• backups

• polling rate

• database overhead

• on-demand maps

This guide easily becomes dated as new versions of NNM and new patches are released. A conservative approach is to make a first estimate with the guide, double the results, and allow for growth. Remember that a computer system gets its performance from resource headroom. It’s good to underutilize ...