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NmonAnalyser

nmon Analyser Firefox

Briefly:

  • This is a Microsoft Excel spreadsheet that takes an output file from nmon for Linux (optional install - open-source since 2009) and nmon for AIX (default install with AIX since 2008) nmon and produces some nice graphs to aid in the analysis and report writing.
  • It works with Excel 2003 onwards and supports 32-bit and 64-bit Windows and Excel on Apple Mac
  • It does not work with OpenOffice due to the embedded Visual Basic.

Please note:

  • The nmon Analyser is not officially supported by IBM and no warranty is given or implied. Use it at your own risk.
  • nmon Analyser was the personal project of the original developer - Stephen Atkins (IBM).
  • More recent improvements and from version 4 onwards are by Ron McCargar (IBM).
  • Warning: for large nmon data files (10+ MB), It is highly recommended that you should install 64-bit Microsoft Excel 2016 or higher and have a minimum of 8 GB of memory in your PC and preferably 16GB or more. This removes many failures to analyse large data files.

Thanks to Ron McCargar (IBM)

  • IBMer Ron McGarger has been the prime developer and maintainer of the nmon analyser for years now.
  • It is not actually his full-time job - so thanks to Ron, for supporting the 1000's of users, especially in getting it to handle much larger nmon files.

Instructions for use:

  • YouTube videos:
    1. About the nmon Analyser - CLICK HERE
    2. nmon for AIX playlist: CLICK HERE
    3. nmon for Linux playlist: CLICK HERE
    • If you do not want to use Microsoft Excel please consider: nmonchart (a ksh script to make webpage graphs) - CLICK HERE
  • Make sure you have the latest version of NMON
  • Use NMON to capture data to a file (using one of the -f, -x, or -X options). This will create a file in the current directory with a name made up from the host-name, the date, the time and with a file type of nmon. This is a comma-delimited text file with the data in snapshot order.
  • I recommend that you keep the number of snapshots to around 300 in order to avoid problems with over-large files. The graphs will also look better.
  • A good example would be nmon -f -s10 -360 (snapshot the statistics every 10 seconds for an hour). Make sure you wait just over the hour before trying to analyse the data file.
  • FTP the file to your PC as a binary file (ftp "bin" option)
  • Now open the nmon Analyser spreadsheet, click on the "Analyse nmon data" button and select the .nmon file
  • It should then generate all your graphs and place then on different Tabs.

Download:

Current Version 61

  • 22nd July 2019
  • nmon_analyser_v61.zip 354 KB in Zip format
  • Fixes:
    • The nmon Analyser will fail if no hdisks exist in the 1st row of the nmon data file disk data.
    • If using the -k <disks> nmon command option (which limits the disks to just the named disks list), for best results please, include hdisks BEFORE power (EMC) disks.

Older versions

  • v60 March 2019
    • Bug Fixes for Microsoft bugs introduced with the latest Excel release!
    • Includes iMac support
  • v55 Sept 2018
    • Note the zip file includes the nmon Analyser documentation in Microsoft Word format

Further Information:

  • You can ask a question on the Forum (until it is removed)
  • nmon
    • nmon for AIX - Became part of AIX and ships with AIX as a default install since 2008
    • nmon for Linux - Was kindly Open Sourced in 2009 by IBM. It is within some Linux Distro repositories (double-check its the latest) or download it from this website - see left menu.
  • Documentation is within the zip file in Microsoft Word format (.doc)
    • It is really embarrassing when users ask questions covered in the documentation