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Showing posts with label Determining. Show all posts
Showing posts with label Determining. Show all posts

Determining the amount of data in a client

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Is there a way to determine the amount of data in a client for a given company code (client size by company code)?

Yes there is -- have a look at OSS NOTE 489690: CC INFO, copying large production clients. You can also determine the size and the storage requirement of your clients with reports RSTABLESIZE or RSSPACECHECK (see also note 118823).



Keyword: BASIS
Title : Determining the amount of data in a client

Determining Swap Space SAP Memory Management Requirements

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The program sappfpar lets you check the minimum and maximum (worst case) swap space requirements for an R/3 application server. It also checks the shared memory requirements and if the parameters em/initial_size_MB and abap/heap_area_total are correctly set. Proceed as follows:

  1. To check the instance profile for the R/3 application server, start the program sappfpar from the UNIX command line.
  2. /usr/sap//SYS/exe/run/sappfpar check pf=/usr/sap//SYS/profile/ nr= name= | more

  3. The program generates a list. Note the total value for the shared memory in the field Shared memory under Memory requirements estimated. This value corresponds to the size of the shared memory required for this profile, and must be calculated into the shared memory requirements for the new Memory Management.
  4. At the end of the list, the program specifies the minimum swap space requirements, the maximum heap memory requirements and the swap space requirements in a worst case scenario:

Total, minimum requirement.....: 169.5 MB (shared memory requirement)
Process local heaps, worst case: 762.9 MB
(is set with abap/heap_area_total )
Total, worst case requirements: 962.5 MB

Ensure that there is more swap space available than what is specified in the worst case scenario. (This is because non-R/3 processes also require swap space.)

The following minimum values for the swap space are valid in each case for host systems on which application servers run:

  • 3 GB (OSF/1 systems)
  • 2 GB (all other systems)

For optimum performance, 3-6 GB swap space is recommended.

The additional swap space requirements may be higher for application servers where heavy online operations and background jobs with large data volumes alternate (day/night operation).

Expanding the swap space may require additional disk space in certain circumstances. This is highly recommended due to inexpensive hardware prices.

Independent of the swap space size, you should monitor the swap space to avoid bottlenecks.



Keyword: BASIS
Title : Determining Swap Space SAP Memory Management Requirements

Determining who executed a transport

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Have you ever been working on a project with 10-15 Basis administrators, and someone transported a request which was not supposed to be transported? This is a very common problem faced by many team leads. What would you do in this situation? STMS will not give you a log which tells you who has executed the transport.

The solution is table - TPLOG. Table TPLOG gives you all the data which you would like to record.



Keyword: BASIS
Title : Determining who executed a transport

Determining the Swap Space Currently Available for SAP Memory Management

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Procedure

The program memlimits lets you determine how much swap space is currently available in the host system.

To start the program memlimits:

/usr/sap//SYS/exe/run/memlimits | more

Start the R/3 program memlimits from the UNIX command line to determine the available swap space on the host system, where an R/3 application server is to be started.

The application must be stopped for this.

Result

The available swap space is given at the end of the program output in the output line Total available swap space: . The program also specifies, if the amount of swap space is adequate and determines the size of the file segments in the system.



Keyword: BASIS
Title : Determining the Swap Space Currently Available for SAP Memory Management

Determining the Number of Work Processes

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The context change for processes under Windows NT is more time-consuming compared to UNIX. Therefore, the recommended number of work processes is smaller than compared to UNIX systems. The number of work processes is not calculated according to the number of users. Rather it is calculated according to the number of processors in the system and may be taken from the following table.

You can determine the number of work processes using the CCMS Maintain Operation Modes and Instances: Tools ® CCMS ® Configuration ® Op Modes/Servers ® Operation mode ® Maintain instances

Number of Work Processes under Windows NT

Number of Processors

Number of Work Processes

1

5-6

2

8-10

4

15-20

The number of work processes depends on the number of processors and not the number of users.



Keyword: BASIS
Title : Determining the Number of Work Processes

Blueprinting - Determining Enterprise and Personnel Structure

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Keyword: SAP HR
Title : Blueprinting - Determining Enterprise and Personnel Structure

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