Recently I wrote about IBM i 7.3 System Monitor Enhancementsand mentioned the default monitor collection interval was changed to 60 seconds. On the 7.2 release, the default collection interval was 15 seconds; IBM has recently changed the default on 7.2 to 60 seconds. For this change, you will need the Navigator service pack that was made available this past June. You can find the details of the required PTFs and PTF Groups on the developerWorks page for Navigator PTFs.
System Monitor support was added to Navigator with the 7.2 release. Navigator system monitors are similar to Management Central system monitors—they allow you to monitor a set of metrics in real time with the option to set thresholds and define actions to take when those thresholds are hit. However, system monitor support in 7.2 had limited ability to visualize metrics.
I wrote about workload groups some time ago in “i Can … Manage Workloads Better with IBM i 7.1”. The information in that older article is still accurate, and I’m not going to repeat a lot of what I wrote there. If you have not yet used workload groups, you may want to read the older blog for additional information on why workload groups are useful.
Back in 2013, IBM first published the IBM i Performance FAQ; this document is a fantastic resource on all types of performance topics. It reviews the various components of system performance, discusses benchmarking, sizing and capacity planning, monitoring, and covers the performance tools that are available on i. The document has answers to many commonly asked questions, and ends with an extensive list of references. I first blogged about it here.
IBM i now has historical data support from Collection Services and graphical display of that data with Graph History in the Performance task of IBM Navigator for i.(more…)
Last week I wrote about collecting performance data for database. This week I will review how you can visualize that database performance data with the Performance Data Investigator (PDI).(more…)