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SAP Basis/Netweaver Tutorials, Monitoring, Administration(Certification) and FAQs


Wednesday, 8 June 2011

What is the difference between dynamic and static parameter

This article answers following queries :

  • What is a SAP parameter?
  • Different types of SAP Parameters?
  • How to identify whether a parameter is dynamic or static ?

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In SAP, parameters are used to set the configuration and define the functionality of an sap system like number of workprocesses, buffer size, locktable size etc.

Basically there are 2 types of parameters :

  • Static
  • Dynamic
Static are the parameters those won't take effect immediately the value is set. Restart of an sap system is required for them to take effect.

Dynamic are the parameters those will take effect immediately in the run time. Restart of an sap system is not required for them to take effect.

Parameter can be differentiated whether it is dynamic or static by checking in RZ11 transaction of SAP.









 In Rz11, type the parameter and display it. In the screen , there will be a check box with description as "Dynamically switchable". If that check box is ticked, it means that it is dynamic parameter and value can changed in run time without restart of the system. If it is not ticked, then it is static parameter and it needs restart of a sap system for the changes to take effect. 





16 comments:

  1. Hi Durga,

    Can we change Dynamic parameter value using Tcode RZ11?

    Thanks
    Ravi

    ReplyDelete
  2. Hi Ravi,

    Yes. Dynamic parameter value can be changed using RZ11 tcode.

    ReplyDelete
  3. Hi Durga,
    I can not change values in rz11 . It has only display button.
    Thanks

    ReplyDelete
    Replies
    1. Hi Frnd, You can only change dynamic parameters through Rz11. If it is static parameter, you have to change it through Rz10 profiles.

      We can check a parameter is dynamic or static in Rz11. If "Dynamically switchable" checkbox is ticked in Rz11 then that parameter is Dynamic otherwise it is static.

      Delete
  4. May be the parameter you have selected is static parameter.

    So, to change static parameter value go to RZ10.

    ReplyDelete
  5. Hi Durga,
    can you please tell me some dynamic parameters. becoz
    i have checked in rz11.........>display....>dynamic swithcable check box......>but i did not find any dynamic parameter yet..mostly static parameters are there...
    thanks&regards
    vijay

    ReplyDelete
    Replies
    1. rdisp/max_wprun_time is dynamic parameter..

      Delete
    2. Please find below some dynamic parameters:

      rdisp/max_wprun_time
      rdisp/TRACE
      rdisp/gui_auto_logout
      rdisp/j2ee_start
      rdisp/keepalive
      rdisp/max_priv_time
      rdisp/max_alt_modes
      rdisp/wppriv_max_no

      Delete
  6. can u post some of static parameters

    ReplyDelete
  7. hi sir i cant able access any tcode to a user its displaying not autorised to use tcode

    ReplyDelete
  8. Guess the user you using don't have roles assigned for the corresponding Tcodes you are trying.
    Go to SUIM & compare the user roles with a well working user profile & assign all the missing roles through SU01.

    ReplyDelete
  9. Static Parameters:
    rdisp/wp_no_dia
    rdisp/wp_no_btc
    rdisp/wp_no_vb
    rdisp/wp_no_vb2
    rdisp/wp_no_enq
    rdisp/wp_no_spo

    ReplyDelete
  10. hi,
    table TPFYPROPTY contains all dynamic switchable system parameters

    regards,
    Shahin

    ReplyDelete