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Nmon - Performance monitoring for AIX and Linux OS systems
- Python Nmon Analyzer: moving away from excel macros. This tool is great, if you have access to Windows/Mac with Microsoft Office installed. If not there is also the Nmon2rrd tool, which generates RRD input files to generate your graphs. This is a very rigid approach and slightly painful. Now to provide a more flexible tool.
- The nmon Analyser was written for Excel 2003 - any problems with Excel 2013 are down to Microsoft lack of backward compatibility. When you have problems first reduce the complexity nmon file with less advanced option Less snapshots to reduce the amount of data.
SAP OS Monitor
Operating System Monitor ST06/ST06n/OS07n provide the following functions to analyze the bottleneck for CPU, Memory, file system, LAN, etc.
After copying my nmon output file in my windows station, I just have to launch the excel file and then use the button Analyze nmon data And below I show some graphs made by the nmonanalyzer. Conclusion As we can see nmon is a very useful tool which can help monitoring our servers. It works also for Aix systems.
CPU
The CPU utilization for a non-virtualised environment will always sum up to 100%. User utilization should not exceed a value of 50 to 60%. System utilization should be below 20% and Idle time should be above 20%. An idle time below 20% will lead to CPU bottleneck situations. IO Wait time is considered a subset of idle time. It can’t be concluded that a high IO wait time indicates a disk-level issue. IO Wait time includes block IO, raw IO, or Virtual Memory operations such as paging/swapping. It does not include time spent on tape IO or terminal IO.
Memory
• Physical memory: This number gives the size of the RAM of the server.
• Swap size: Configured swap size: This is the sum of physical RAM and swap/page space. This sum is also known as virtual memory in SAP systems.
• Swap size: Maximum swap size This figure gives the amount of configured swap/page space.
• Page: The swap/paging activity on OS level per hour should not be higher than one-fourth the size of the physical RAM for Page in activity on Windows OS, or one-fifth the size of the physical RAM for Swap Out activity UNIX OS. Otherwise, you will observe a decrease in SAP system performance caused by heavy CPU and I/O utilization.
• Swap size: Configured swap size: This is the sum of physical RAM and swap/page space. This sum is also known as virtual memory in SAP systems.
• Swap size: Maximum swap size This figure gives the amount of configured swap/page space.
• Page: The swap/paging activity on OS level per hour should not be higher than one-fourth the size of the physical RAM for Page in activity on Windows OS, or one-fifth the size of the physical RAM for Swap Out activity UNIX OS. Otherwise, you will observe a decrease in SAP system performance caused by heavy CPU and I/O utilization.
Related SAP Notes:
- 2442188 - decision tree - Analyzing and Configuring Memory to Increase Performance
- 1121904 - SAP on AIX: Recommendations for paging space
- 103747 - Performance: Parameter recommendations as of Release 4.0
LAN check by PING
In the operating system monitor (Transaction ST06), select Other Functions • LAN Check by Ping or call the transaction code:OS01.
Please see the following note for further information
For how to use LAN Check By Ping
There are a number of tools that are available to collect data on your hardware utilization.
SDF/MON - Performance monitoring
The transaction SDF/MON is a powerful in-built feature in all SAP systems that can help collect hardware performance metrics from a number of areas;
SDF/MON - Performance monitoring
The transaction SDF/MON is a powerful in-built feature in all SAP systems that can help collect hardware performance metrics from a number of areas;
- CPU Utilization
- Pages in/Pages out
- Extended memory utilization
- Paging memory
You can set the performance monitor for a daily schedule or for a specific time when the a performance issue is known to occur. This is defaulted to take a snapshot of the system perfromance every 10 seconds. One very useful feature of SDF/MON is viewing the snapshot data in real time allowing for analysis as the issue occurs.
More information about SDF/MON can be found here; 2383809 - How to use the SDF/MON tool to analyse performance issues.
More information about SDF/MON can be found here; 2383809 - How to use the SDF/MON tool to analyse performance issues.
Another useful feature is importing the SDF/MON data into a tool called RSORASTT which can graph the outputs for further analsysis.
The tool can be found in the attachements of the following note; 1299493 - Loadable SAP Support Monitors
The graph below displays SDF/MON data collected for a defined time period where cpu idle%(1) is graphed for a selected server(2). This is very helpful as servers can be selected as required. In this case, the cpu idle% does not go below 80% and therefore is acceptable (3).
Nmon - Performance monitoring for AIX and Linux OS systems
The Nmon tool is a very useful too for giving detailed information on OS/hardware performance for AIX and Linux systems. The Nmon tool collects the hardware performance for output to a .nmon file. This file can then be analyzed by the Nmon analyzer which displays the following;
- CPU utilization
- Disc write speed
- OS/system utilization vs. User utilization
If analysis is taking place on virtualized environment, it is critical that enhanced monitoring functions are activated as per the SAP Notes highlighted below:
General
- 994025 - Virtualized OS environments in the operating system monitor
- 536954 - OS data in a cluster environment for OS07
- 1084019 - OS07N: New operating system monitor
- 2067546 - ST06/OS07N: Overview note
VMware
- 2447884 - VMware vSphere with VMware Tools 9.10.0 up to 10.1.5: Performance Degradation on Windows
- 2161991 - VMware vSphere configuration guidelines
- 1055767 - Best Practises VMWARE ESX
Windows
- 1409608 - Virtualization on Windows
- 1056052 - Windows: VMware vSphere configuration guidelines
Linux
- 1122387 - Linux: SAP Support in virtualized environments
- 1122388 - Linux: VMware vSphere configuration guidelines
AIX
- 1379340 - Extended set of virtualization metrics for AIX Power Systems
Oracle & Solaris
- 2031893 - Virtualization monitoring with saposcol on Oracle Solaris
Nmon Analyser Windows Download
- 1571179 - System shows high IO-Wait in ST06
- 2399769 - General Performance: Troubleshooting Questions
Click stars to rate this APP! Java Nmon Analyser version is available for download from our website. If not there is also the Nmon2rrd tool, which generates RRD input files to generate your graphs. Please do let me know if you have any suggestions, find any bugs or have feature requests. Click to see the full Report.
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Python Nmon Analyzer: moving away from excel macros
Download the current release here: Nmon analyser in development is a wizard that will make adjusting the configurations easier. It has some learning abilities and accepts html, doc, pdf, ppt, odt and txt Currently these reports are very bare bones and only prints out basic analsyer graphs, but development is on-going. Microsoft odbc driver manager download mysql.
This is a very rigid approach and slightly painful.
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Please do let me know if you have any suggestions, find any bugs or have feature requests. Invest Analyser 2 analyze Additionally pyNmonAnalyzer nmoj on matplotlib and numpy.
Now to provide a more flexible tool, I nmon analyser introducing the pyNmonAnalyzer, which aims to provide a customization solution for generating organized CSV files and simple HTML reports with matplotlib based graphs. Are your investment strategy is value investing? Version History Here you can find the changelog of Java Nmon Analyser since it was posted on our website on If not there is also the Nmon2rrd tool, which generates RRD input files to generate your graphs.
Click stars to rate this APP! See below the changes in each version:. Just click the green Download button above to start. As the name indicates you will need python. Digital Pulse Processing module measures height of pulses and show nmon analyser as a hystogram or a curve.
Java Nmon Analyser version is available for download from our website. Download Java Nmon Analyser. Click to see the full Report. The app is currently available in English and it was last nmon analyser on With Invest Analyser 2, you can quickly calculate a lots of financial ratios. By now Nmon is available on just about every linux platfrom and architecture.
nmon analyser — A free tool to produce AIX performance reports
Aix Nmon Analyzer
Publisher Description The Java Nmon analyser is a free, open source analyser tool which is helpful in analyzing performance data captured using the nmon performance tool.
Continue to app Rating: Until now the program was downloaded times. This will create a directory called. The latest bmon is nmon analyser it was updated on soft This is all defined in a self explanitory configuration file, “report.
However, Nmon’s greatest feature is the capability to record system performance snapshots over time. Next we need an an Nmon file, if you do not already have one, either use the example provided in the release or record a sample: We already checked that the download link to be safe, however for your own protection we recommend that you scan the downloaded software with your antivirus.
Add a review Tell us your experience with Java Nmon Analyser. If you are on a debian-derivative system these are the packages you’ll need to install:. At the moment this is not yet very flexible as CPU and MEM are not configurable besides on or off, but one of the nmon analyser steps will be to nmon analyser the plotting approach and to expose more flexibility with which graphs plot which data points.