Answer / rabinesh singh

presentation server is the server which directly handle the
sap user(gui) it collect the requirment from end users and
send it to the data base layer for the response of
that,where data base server is the main server which have
all the data information and tables, application server is
situated b/w both,presentation and database server and it
provides interfacing b/w the database & presentation server.
so it is called as sap r/3, but now a new concept is
introduced that is netweaver concept, in which a new layer
is introduced that is internet layer.

Answer / sandi

Presentation Server is the system with GUI where the
enduser works
Application server is where the dispatcher distribute the
work load to the different work processes(like Dailog
wp,B/G wp,spool wp, update wp and enque wp )and makes the
job done.

Database Server is where it contains three buffer( D/B
buffer,SQL buffer and Redolog buffer )and a Actual data
base where the commited data is stored.

Answer / sanjay

Presentation server -
in very simple word this is responsible to convert end user
input data to application specific language input, that
application can understood users requirement.

application server -
where the real execution of end users input processes.
in sap the application server after getting the users
request collects or brings data from database server and
make process as per the user specifies.

database server -
where the real data is stored in database. it has own work
process which handles the task related to database.

Answer / sree

The application layer of an R/3 System is made up of the
application servers and the message server. Application
programs in an R/3 System are run on application servers.
The application servers communicate with the presentation
components, the database, and also with each other, using
the message server. All the data are stored in a
centralized server. This server is called database server.

Answer / suman

SAP R/3 Mainaly dived into 3 layers.
1.Presentation layer.
2.Application layer.
3.Database layer.
Presentation layer:- It is used to communicate/connecting
with only application server. Here we using the GUI. This
GUI is mainly dived into 3 types.
(i).Windows GUI.
(ii).JAVA GUI.
(iii).Html GUI.

Answer / ashwin mane

In SAP R/3,

Presentation server - From where you are accessing the
application. i.e.- GUI on Operating system, java client,
Browser etc

Application server- The system where the SAP application
has installed & configured. It works as a Intermediaries
between Database & end users.

Database Server - Where the Database has been installed.
i.e. MSSql, Oracale, DB-2 etc.

Answer / sachin deore

1. Presentation layer
idenifying server which is least loaded from the GUI with
the help of message servers. During GUI logon following
files are evaluated.
1. SAPLOGON.INI
2. SAPMSG.INI
3. SAPROUTE.INI
4. SAPDOCCD.INI

2. Application layer
1. Database client to communicate with Database server
2. Kernel executables
3. Dispatcher
4. Configure work prcess
5. Buffer areas can be maintained, buffers in memory
6. It has message server in central instance
7. Run time exutables
8. CPU and process

3. Database layer

1. Predefined Tables
2. Own memory and buffer
3. Own security
4. Own process to handle request from Application layer

Answer / sandy

Sayed,


Get SAP Training or read TADMs and goggle well before poking
your nose in the area where you are not very Confident, No
one would agree what you have answered but I appreciate your
effort

Answer / p patel

Hey Syed!

Get a Wife ...you moron...

Answer / anil kalla

Hi Syed and sanjay this is not for the place for this type
of communication. OK Understand. Next time u don't do this
mistake.

When applying a support pack to sap system. Can you tell me what are errors you are faced?

4 Answers   Terrenos,

What are the Different types of authorisation tables?

1 Answers  

what is the difference between se16 and sm30?

1 Answers  

What do you understand by transport management in sap basis?

0 Answers  

Explain how client refresh is different than client copy?

0 Answers  

Explain what is the purpose of tdevc ?

0 Answers  

What are the Prerequisite for Refresh?? If there are 100 rfc before refresh in Quality Systesm, then after refresh..do we need to create them manually in Quality sys.???

2 Answers   ABC,

is a transport route bidirectional?can you transport requests generated during client copy(scc8)from production to dev?

6 Answers  

i want my company code and controlling area defaut as 'ABC" through out SAP what to do ? and my plantcode also default to some value

0 Answers  

In sm51 screen what are the possibilities for status field? If the status is active then we can double click on the instance name to goto it's work process over view screen(sm50). but if the application server is down,will it still be displayed in the sm51 screen with status shutdown?if so,what happens if we double click on an instance name with status shutdown>will it still goto sm50 screen?what would be the workprocess status then?

4 Answers   TCS,

How to check SAP Memory status?

4 Answers  

what can we do if shadow instance is down and getting up in prepare phase of upgrade

0 Answers   IBM,