sap servers

[Former Member]

How many type of server should be there in sap system. Suppose if company implementing sap in their company.

Just give me a brief idea about that.

As I want to know about the servers used in the sap system

thanks & regrads...

[Former Member]

How many type of server should be there in sap system. Suppose if company implementing sap in their company.

Just give me a brief idea about that.

As I want to know about the servers used in the sap system

thanks & regrads...

[Former Member]

Hi SAM ,

it may diff frm company to company.

i am giving simple landscape

DEV.Server---->QAS.Server->Prod.Server.

Regards

Prabhu

[Former Member]

We can have 4 servers.

Developement -> staging-> Quality -

---

> production

staging and quality servers are same as prodution so quality can be skipped but three servers are required.

[Former Member]

Hi Sam,

In general 3 types of servers will be there in sap implementation company.

Development Server: Most of the development work done under this server only

by developers.

Quality(Testing) Server: After develping the objects and programs will be testing in this server.

Production Server: Actual work place, end users will work here.(After completion of testing, they moved to Production)

This is the main idea of servers in sap implementation.

Hope u got idea about servers now.

Regards,

Kumar

[Former Member]

Hi Sam,

The SAP R/3 system is made up of a group of servers and a group of services. Depending on the function they

perform, there are three types of servers:

<b>Database server.</b> Basically contains the database engine and associated processes. The database layer contains the database system used by all servers. Since all database system used by R/3 support remote SQL, it can run separately from the rest of the SAP system. Notice that what distinguishes a

SAP system ID (SID or SAPSID) one from another is the unique database for each system.

<b>Application servers.</b> Run the SAP services. The application server layer contains a SAP kernel which can run ABAP programs. It consists of a dispatcher task and a group of work processes. The dispatcher allocates the resources needed to perform the request to its work processes, which carry the

request out. The distinction ibetween application server and SAP instance made on the basis of the hardware or software concept of client/server computing. From a hardware point of view, an application server denotes a computer running application services, while from the software point of view it denotes a group of processes running under the same parameters, with just one dispatcher and

a shared common memory pool. This means that a SAP instance is conceptually the same as an application server from the software point of view. But remember that if the server computer has enough memory and CPU power, it could have room for several SAP instances. Nevertheless, if the server computer running the application services has just one SAP instance (which is very common),

then server computer = application server = SAP instance.

<b>Presentation servers.</b> Run the SAP front&#8722;end interface. The presentation server layer is responsible for displaying the SAP user interface, sending outputs to the user, and receiving the user input to be sent to the application layer of the system

<b>Transaction SM51</b> displays all the <b>SAP servers</b>.

Regards,

Balaji Reddy G

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