Question { TCS, 6048 }

how can we configure reference user in user maintenance ?

Answer

A reference user is, like the service user, a general
non-person-related user. You cannot use a reference user to
log on. A reference user is used only to assign additional
authorizations. You can specify a reference user for a
dialog user for additional authorization on the Roles tab page

Question { 6098 }

how can we create a particular tables buffer which are
mostly used/ And where we can see them ?

Answer

The table buffer is located between the application and the
database. Its goal is to cache portions of a database table
in the application server to reduce database load and
network communication.

ST10 will help you to identify buffering problems.
or use SE13 to display the buffer settings for several tables.

We can activate buffering for a table in the ABAP Dictionary
using Technical settings in transaction SE11 or SE13, you
can choose between different settings like Fully buffered,
Generic area buffered, and single record buffered.

Table buffer advantages:
Makes data access many time faster
Reduces the load on the database
Reduces the load on the network and on CPU
The work process is freed more quickly for other work

Table buffer disadvantages:
If an SAP system consists of more than one SAP instance,
then buffering might be dangerous.

Invalidation of buffered data - If data stored in a buffer
is outdated compared to data on the database, then this data
is no longer available for access and will be overwritten.

By setting the system parameter rdisp/bufrefmode to the
value sendon, exeauto you can ensure the following mechanism
and is strongly recommended by SAP:

The sendon switch for the parameter rdisp/bufrefmode will
force the SAP system to log each change to buffered data in
the table DDLOG on the database. By setting the exeauto
switch for the same parameter, you can force all SAP
instance to periodically check the validity of their locally
buffered data against table DDLOG

Hope answered all u r queries with regard to table buffer

Question { Satyam, 10801 }

As a basis consultant what we have to do if a background
job is cancelled?

Answer

delete this job

Question { HCL, 10698 }

how to find out long running jobs?explain clearly....

Answer

ST04 SM50 SM66 SM21 ST06
rdisp/max_wprun_time is the parameter to limit run-time for
DIA work processes

Question { IBM, 31809 }

How ORAARCH (:\oracle\DEV\oraarch) directory is
configured, what is the maximum size of
ORAARCH directory, how to see? briefly....

Answer

Offline redo log files are written to the oraarch directory;
their names are specified with help of Oracle instance
configuration parameters, so the name arch1_.dbf
is just an example

Create a cron job to run a script to check percentage used /
capacity of oraarch directory. If it exceeds 80% run a
brarchive command to archive the logs.

archive directory containing all of SAP information for
backup restore purpose.
So I suggest you doing list out some questions from your
system which is the answer may impact the growth size of the
archive files in oraarch directory:

How much transaction happend by day?
Do the system doing extraction data from R3 to BW system?
are you doing reorganization table?
are you doing client copy?
Are you sure the archive backup (copy-del-save) run well
everyday?

Or you may analyze by your self the growth of the files in
oraarch directory by counting the files created by system
each day. After that you may make calculation how many
files average created each day.

Example:
created files by day (average) are 100 files (each files
20Mb by default)
so you will need:
100 x 20Mb = 2Gb => 3Gb

Always spare more space for archive directory, otherwise if
the directory
full the SAP system will stop responding.

Is This Answer Correct ?

20 Yes

3 No

Question { Satyam, 12191 }

How TRANS (:\usr\sap\trans) directory is configured,
what is the maximum size of TRANS directory, how to
see? briefly....

Answer

1. Make the transport directory available.
2. Configure the transport domain controller and define the
domain.
3. Configuration of the transport program (tp) is done
automatically and must not be done at OS level.
4. In the TMS:
- Include all remaining systems in the domain
- Define the transport routes
- Define QA approval procedure
5. Set the system change options according to the role of
the R/3 System.
6. Create clients and set the client change options for the
production system,development system, and so on.

Question { 3731 }

what is data dictionary objecst?

Answer

Tables, views, lock objects and domains are important object
types in the ABAP Dictionary.

Question { Accenture, 35014 }

what is the difference b/w repository & data
dictionary objects?

Answer

The Repository, the central store for all ABAP workbench
development objects, is also cross-client. It contains all
Dictionary objects (tables, data elements, domains), and
also all ABAP programs, menus and screens. Repository
objects are grouped together to form packages.

ABAP Dictionary is a central component of the ABAP
workbench. It contains both business and technical
definitions and descriptions of SAP data. The ABAP
Dictionary enables all data definitions used in the SAP
system to be described and managed centrally.
The tasks of the ABAP Dicitonary can be subdivided into:

Database object definitions (tables, views, and so on)
Type definitions (structures, tables types, and so on)
Services definitions (F1 help, F4 help, lock objects and so on)

Question { IBM, 26645 }

What are the port nos of Dispatcher,Gateway, Message Server,
Printer in windows,niping,Router ?

Answer

This are SAP predefined ports

Question { 13264 }

When you use DB02 Transaction, You see something called as
Swaps, What are they, and how the increase in swaps does
affect your SAP system Performance

Answer

DB02 - Table and Indexes Monitor, monitors the storage
behaviour of the database (for example, space statistics
showing the history of the database, or size and free space
in each tablespace) and the status of database objects (for
example size of each table in kilobytes and blocks, or
indexes that are defined in the ABAP Dictionary but missing
in the database)

High swap/page activity usually is a sign of a memory
bottleneck. To reduce the load on memory, you can:

Distribute process that do not need to run on this specific
hardware to other hardware.

If necessary, reduce the size of the file system cache to
less than 10% of the total physical memory

Identify users/programs that cause a high memory consumption
by analyzing the mode list. Choose ST02 --> Detail analysis
menu --> SAP memory --> Mode list and analyze the
transactions for signs of expensive SQL statements or
suboptimal programming.

Question { 11452 }

In an SAP system, while using the Transaction DB02 there
are Swaps figures that are RED, How can one solve this
problem....

Answer

Increasing the Size of SAP Buffers

Program
Size: abap/buffersize [KB]
240,000 – 400,000 KB

GenericKey
zcsa/table_buffer_area [Bytes] upto 50MB
Entries: zcsa/db_max_buftab -- upto 10,000 entries

SingleRecord
Size: rtbb/buffer_length [KB] - upto 30,000 KB

Screen
zcsa/presentation_buffer_area [Bytes] - upto 150 - 200 MB

CUA
rsdb/cua/buffersize [KB] - 3,000 -6,000 KB

Table Definition
Size is determined by the number of entries
Entries: rsdb/ntab/entrycount upto 30,000 entries

Field Description
Size: rsdb/ntab/ftabsize [KB] upto 20,000 -30,000 KB
Entries: 2 * rsdb/ntab/entrycount + 1

Initial Records
Size: rsdb/ntab/irbdsize [KB] upto 4,000 KB
Entries: 2 * rsdb/ntab/entrycount + 1

ShortNameTAB
Size: rsdb/ntab/sntabsize [KB] - upto 2,500 KB
Entries: 2 * rsdb/ntab/entrycount + 1

Question { 32445 }

What is the difference between a Transport Domain and a
Transport group.

Answer

Transport Domain {Centralized Configuration Data}
A transport domain consists of all SAP systems jointly
administrated through the TMS, Transport paths are centrally
configured on the domain controller. The domain controller
defines the reference configuration, all other SAP systems
automatically receive copies of the reference configuration
using RFC

A transport domain contain at least one transport group.
Very simply, a transport group consists of one or more
systems that share a common transport directory.

Question { 16088 }

Dear all,
I m looking out a Remote Support Service for SAP BASIS
opperation, my entire database is within my company only,
and we are currently using SAP 4.7,
we also looking for upgratation to ECC 6.0.
Can any one suggest me who the company is beetr for
Upgradation as well as REMOTE BASIS SUPPORT.
kindly provide me the PRICE for Remote SAP BASIS SUPPORT
SERVICES.

Thanks in advance

Answer

U can contact me at:
Mr.Inderjeet Singh SherGill
Cell No : 9815515599
email : isgill@bigbasics.com
Chandigarh, India

Question { 8686 }

how can we activated profile parameter for disable multiple
logon?
i have already tried parameter:
login/disable_multiple_login_gui=1.
but its not affect to sap system.
pls give me some step.

Answer

You can specify the list of Excepted Users for Multiple
Logons using Parameter:

"login/multi_login_users"

Enter User name as the value.

Note: This function applies to dialog logons only. It does
not apply to system logons that occur using the Remote
Function Call (RFC) or to logons via the Internet
Transaction Server (ITS).