This is the third of a series of tips that illustrate how to automate the collection and display of nmon performance data from multiple servers. It extends the capability in previous tips to include the aggregate utilization of all partitions on the physical server. This includes CPU, memory, virtual I/O and virtual ethernet. This tip is targeted primarily for micropartitioned systems. However, it may be of broader interest for the following new features:
- More flexibility in choice of charts (uses Perl in place of the nmon2rrd utility)
- Displays non-default AIX settings for ease of management.
- Displays Change control logs for AIX settings and hardware configuration.
- Work Load Manager - displays absolute CPU utilization by class (useful for micropartitions, where %utilization is meaningless)
- Centralized rrdtool database for easier data extraction so you can write your own programs. (The nmon2rrd tool created a separate rrdtool database for each nmon file.)
- Uses less disk space - removed duplicate databases (daily and long term)
The necessary scripts and documentation are provided in the following URL: http://www.aixtips.com/AIXtip/nmon2rrdv3.htm