I had searched on the above key words on scn and coul not find any document when I needed. So thought of sharing the steps I followed for setting up operations mode.

What are operations mode ?

When there is memory limitations in SAP, we may not be able to define high number of dialog or back ground processes. Operations modes are a concept provided by SAP to take advantage of this fact. We can define more number of dialog processes and less batch processes during day time and vice versa. We can define the duration for day and night time operation mode. System will switch to day or night based on the settings and improve the system performance.

  1. Start transaction rz04

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2. Click the create button

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Enter the operation mode and description. create one for day time and one for night time.

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Click on instance operation mode.

Following screen comes

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double click on any one the following screen appears

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click on other operation mode.

Select the operation mode you have created.
Press F4 or the button. Take the cursor to the back ground and click +
or – the way you want the process to be set. Save it

Press save once more

start transaction sm63

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Press Change

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  1. First select the hours for eg. From 8 to 17
  2. Select
    the operation mode you want selected
  3. select the hours
    17 to 23
  4. Select the operation mode you want selected
  5. select the hours
    00 to 8
  6. Select the operation mode you want selected
  7. Then press save.
  8. if you want to switch current mode immediately then start transaction rz03
  9. Select on the serer you want to switch
  10. From the drop down menu bar press control –>switch operation mode–>select server

  1. Say yes and the switch mode happens.
  2. Go to /nsm50 for checking if the process got
    changed you can alos check the log file and go to the end for checking the log
    file written
  3. You can also check/nsm21. The log fiel should
    have an entry of the change
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