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Overview:

The new ST06 transaction (OS07N) is available with the SP levels outlined in SAP note 1084019.  Note 1084019 also briefly describes the new ST06 and some of the advantages:

  • 1084019 – OS07N: New operating system monitor

Starting with SAP_BASIS 710 the old ST06 is not displayed by default anymore.  However in the new ST06 you can select from the menu:  Environment -> Old ST06.

The SAP note 1483047 lists out the SAP releases and exactly which versions of ST06 / OS07 / OS07N are available with each release:

  • 1483047 – “Old” version of operating system monitor not available

Old ST06:

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The old ST06 transaction shows Operating Statistics information for each SAP instance.  As it is instance dependant it will open the ST06 stats for the instance you are currently on.  The old ST06 takes its information from SAPOSCOL shared memory.  You can use transaction OS07 to view the OS stats of another instance or monitored host when setup in AL15.  See SAP note 371023:

  • 371023 – OS07/ST06: Monitoring operating system data

Old ST06 only reports old style OS data for the physical CPU of the server, ie. it does not report separate virtualized environments for 2 or more instances on one server for example.  It takes 10 second snapshots of the OS data.  You can adjust the default 10 second collection interval as described in SAP note 1284656:

  • 1284656 – Saposcol collection interval

The “Detail Analysis Menu” button allows you to display information by OS statistics category or data over the last 24 hours or 30 days averages:

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For more information on the old ST06 Operating System Monitor see the online documentation at:

Operating System Monitor – SAP Library

New ST06:

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The new ST06 (or OS07N) displays the OS stats for all instances and other monitored systems and hosts.  It is therefore instance independent.  OS07N takes its information from SAPOSCOL, plus RZ20, plus the RZ23N CPH (central performance history) information.  It is therefore a much more complicated setup than the old ST06.  As mentioned at the top of this article, the new ST06 / OS07N is also outlined in the SAP note 1084019:

  • 1084019 – OS07N: New operating system monitor

The top-left corner of the display lets you choose your instance, servers from other monitored systems, or the Hosts section for monitored non-SAP servers (such as standalone DB for example, see KBA note 2164753).

OS07N handles virtualization.  With OS07N and virtualization, the structure of the OS data and how it is collected has changed.  Now on the left column you have:

  • Snapshot information which is the current OS info at the moment.  Taken from SAPOSCOL shared memory, every 10 seconds.
  • Previous Hours information which is taken from RZ20 CCMS shared memory segment.  So if the Operating System nodes in RZ20 are not working for any reason, then you will be missing data here in Previous Hours also.
  • History information which is taken from the CPH (central performance history).  Again, if the CPH is not setup, then you will be missing the History data in OS07N.

For missing data in Previous Hours or History, check the KBA note 1915341 and the SAP notes listed within it:

  • 1915341 – No History Data in OS07N / ST06

For further details on virtualization and setup, depending on your Operating System, check the SAP note 994025:

  • 994025 – Virtualized OS environments in the operating system monitor

For more information on the new ST06 / OS07N Operating System Monitor see the online documentation at:

Operating System Monitor – SAP Library

More information and troubleshooting guides (including this one) on the BC-CCM-MON area are available in the CCMS Wiki space at:

Computing Center Management System (CCMS) – Technology Troubleshooting Guide – SCN Wiki

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  1. Pankaj Kumar

    Hi  Brendan,

    I am new to NWA and need some information regarding the same.

    We are using Old ST06, Under Detail Analysis Menu we have option to get Daily Average for last 30 days and it gives data for only last 30 days from date of execution. Our challenge is we must always remember to do the extraction on the 1st of the month as we need data every month, if not, we would have lost the data of the very first few days, depends how late we perform the extraction.

    So, Do we have storage where these CPU info are stored in any SAP tables/programs that we could run a periodic batch job to do auto-extraction.

    Any Help will be highly appreciated.

     

    Thanks

    Pankaj

    (0) 

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