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Function documentation Overview of SAP Application Servers 

Use

You can display a list of application servers that have registered themselves with the SAP message server by executing transaction SM51, or by choosing Administration System Administration Monitor System Monitoring Servers. From their status you can recognize which application servers are active in this SAP system.

You can also administer the application servers, and manage and display the status of the users and work processes in all application servers belonging to the SAP system.

Integration

The function for managing users and work processes corresponds to the user- and process-tools. For more information, see Displaying and Controlling Work Processes and Displaying and Managing User Sessions.

Features

Server Table

The application server display includes the following information:

·  Server Name: Name of the individual application server.

The name usually consists of the host name, the SAP System name, and the SAP System number.

·  Host Name: host name of the individual servers

·  Message Types: Services provided by the application server This contains the configured SAP Work Process types (Dialog, update (Update and Upd2), Enqueue, Batch and Spool) as well as the following services:

¡  ICM This means that on the application server in question an Internet Communication Manager (ICM) is configured that can accept or send requests from the Internet (HTTP and other protocols). You can find documentation under Internet Communication Manager (ICM)

¡  J2EE: The J2EE Engine is configured on this server. This server can execute Java programs as well as ABAP programs (see AS Java (Application Server für Java)

¡  VMC: The SAP Virtual Machine Container is configured on this server, which means that there is a Java VM as well as an ABAP VM in the work process.

·  Server Status: The possible statuses of an application server (initial, starting, active, passive, shutdown and stop) are described in Status of SAP Application Servers.

Note

You can make changes to statuses in the Message Server Monitor (transaction SMMS). The possible functions are described in Server Functions.

You can add the following columns by changing the layout:

·  Service: service port or service name under which the server can be reached.

·  Host address (IPv4): IP address of the host in IPv4 notation

·  Host address (IPv4): IP address of the host in IPv6 notation

·  Port: Port number

·  Port (Hex): Port number in hexadecimal form

Menu and Pushbutton Functions

The following functions are available as pushbuttons or in the menu:

Caution 

You can use your cursor to select an application server by clicking on the relevant line (except for the This graphic is explained in the accompanying text Refresh function). The function that is executed then refers to this server.

 

Function

Meaning

This graphic is explained in the accompanying text Refresh

Refreshes the display

This graphic is explained in the accompanying text Processes (or double-click)

Displaying and Controlling Work Processes

This graphic is explained in the accompanying text User

Displaying and Managing User Sessions

This graphic is explained in the accompanying text SNC Status

SNC status

Release Information

Display detailed release information for an application server (SAP kernel, database, operating system)

This graphic is explained in the accompanying text Remote logon

Log on by any server in the system; you can see the server where you are logged on in the status bar in the second entry from the left.

This graphic is explained in the accompanying text System log

System Logs

General list functions

Choose detail, filter, sort in ascending and descending order, etc.

There are additional functions that you can only use via the menu:

Goto SAP directories

The SAP directories of the server on which the cursor is currently positioned are displayed. The environment variables are displayed on the left and the path to the physical directory on the right. To display the contents of a directory, double-click that directory, or click the Display button. You can also display the individual files here. For more detailed information, see the CCMS documentation.

Goto Gateway Monitor

You can also access the Gateway Monitor using transaction SMGW. It is described in Using the Gateway Monitor in the SAP System.

Goto ICM Monitor

You can also access the ICM monitor in transaction SMICM. It is described in Monitoring the ICM with the ICM Monitor. This is only relevant for servers that offer the ICM service (see above).

Goto VM Monitor

The VM overview can also be accessed from transaction SM52 and it is described in the VM Overview. This is only relevant for servers that offer the VMC service (see above).

Goto Server   Administration

Here you will find the administration functions (stop, (de)activate servers, test connection to message server, trace), which you can also find in the message server monitor (transaction SMMS). For more information, see Server Functions.

Goto Server   Information

Here you can find the following information about the individual application servers:

Function

Meaning

Environment

This displays the environment variables for the selected server.

Communication table

The communication table for the relevant application server is displayed.

The RFC connections to the server on which the cursor is positioned are displayed.

The connections are displayed where the local dispatcher of the client is located and those connections where the server is located. This means, the connections to the server that were made externally.

Queue Info

For more informaton, see Queue Info

Release Information

Same information as with the pushbutton Release notes (see above)

WP-CA blocks

Internal information for troubleshooting

APPC-CA blocks

Logon Data

Logon data pertaining to the selected server.

Trace Search

You can specify a character string in accordance to which all dev_* trace files are searched. This provides an initial overview of the error search.

Goto Server OS Monitor

The operating system monitor (OS monitor) provides you with statistics about the host platform, on which an SAP instance is running (for more information, see Operating System Monitor in the CCMS guide).

Host Name Buffer Reset <Component>

This option lets you make the changes made in the OS hosts and services tables in a running SAP System take effect by making the desired changes at the operating system level and then, instead of restarting, resetting the host name buffer for the following components. (See also SAP Note 25917.)

·  Selected application server

·  Message server

·  Internet Communication Manager (ICM)

·  Entire system (all host name buffers)