dialog workprocess runtime and installation doubts

[Former Member]

Hi Gurus,

I am new for sap basis can you pls answer the following questions?

1 abap program has to complete in foreground within 600 seconds am i right?

   what a dialog step?  only one dialog step(screen change)  will execute the program within 600 seconds

  which is configured in rdisp/max_wprun_time = 600

2 i know central system installation but i dont know about other installations like

   could you please suggest how to install following installation types?

1) i would like to know how to install

  application server ( central instance), database instance

  and number of application servers for example instance 01,02,03

could you please more details about how to install

1 central system installation with number of dialog instances

2 distributed system installation

3 high availability systems

thanks and regards,

RR

[Former Member]

Hi,

A dialog step is the processing needed to get from one screen to the next. It includes all processing that occurs after the user issues a request, up to and including the processing needed to display the next screen. For details, check this link

http://help.sap.com/saphelp_nw70/helpdata/en/fc/eb2d40358411d1829f0000e829fbfe/content.htm

     Refer to the installation guides on service marketplace for more clarity on different types of SAP Installations.  To start with you can refer to ERP 6.0 installation guides which can be found in below path.

https://service.sap.com/erp-inst -> SAP ERP -> SAP ERP 6.0 -> Installation -> select the relevant SAP version ( eg. Installation Guides - SAP ERP 6.0 EHP5  )

Regards,

Mudasir

[Former Member]

Hi RR,

rdisp/max_wprun_time = 600 this parameter apply for dialog work process,This parameter control the runtime of dialog work process.

For Installation go through installation guides there you will find good information.

To know basics in BASIS read ADM's or TADM's.

Thanks,

Venkat

[Former Member]

Hi RR,

No. Dialog WP runt time is the run time for whole process to execute specific task. If its value is set to 600, that means whatever task is assigned to this dialog WP, it can continue with it for max 600 seconds.

Dialog step is the subtask being executed by a particular WP. A task can consist of many dialog steps which are in turn distributed among different WP's.

All installations in SAP are done through SAP standard tool, SAPINST. SAP's master installer CD consist this and it differs with each version of SAP. When you run Sapinst through root access on a host, you get all kind of options which you have asked for, Central system installation, additional server installation, distributed installations and high availability installations. Depending on your hardware, you choose one of these options.

Database instance has to be installed first. It can be done separately before starting SAPINST. Then you proceed with Central instance install and then rest of servers.

Hope this answers all your queries,

Regards,

Ashutosh Shukla

[gokulrambalaji_sarathy]

Hi RR -

1)      rdisp/max_wprun_time is a profile parameter which can be used for dialog work process. We can set a           value (in seconds) if any task needs to run for a long time. The default value is 300 sec.

2) For central system installation (CI), you need to go thru the installation guide.

    For additional dialog instance, you need to use the same DB and can have difference SID or instance number.

3) For High Availability (HA), you need to go thru the installation notes for HA. If DB is Oracle then you will need to install oracle failsafe and follow the procedure under high availability option from SAPINST.

Thanks

Gokul