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Purpose

This section summarizes the most important administration tasks necessary for the smooth operation of a multiclient system.

Prerequisites

The following discussion is based on a system/client landscape in which n clients are set up in m systems, where m is kept as small as possible.

Process Flow

Preparing and Planning the Multiple Client System Landscape

When you distribute the n customers among the systems, it is a good idea to first categorize the customers according to their differing requirements, for example, by application solution.

Any decision you make must also be reversible, in case the basic conditions of your setup change. Relocating a complete client from one node in a system landscape to another entails the same amount of time and effort as migrating an installation from one host to another, but it can still be included in your calculations.

Setting Up the System Landscape

You can use the Transport Management System to help you map your scenario to a system/client landscape. To call the Transport Management System, choose Tools ® Administration ® Transports ® Transport Management System (Transaction STMS from SAP R/3 Release 4.5B).

Setting Up the New Client

You set up the new client with client copy tools and a template client: Use the functions of the client copy tool to do this. To call these functions, choose Tools ® Administration ® Administration ® Client Administration ® Client Copy.

To prevent client settings from making changes to Repository objects and cross-client Customizing data, use the client maintenance functions. To call these functions, choose Tools ® Administration ® Administration ® Client Administration ® Client Maintenance (or call Transaction SCC4).

Note

You can set each client so that it is locked for comparison tools; it cannot even be viewed by them. This lock applies regardless of the authorizations held by the user trying to access the data.

Note

Note on assigning authorizations: We recommend that you do not assign the authorizations S_TABU_CLI and S_TABU_CMP, since they allow access to cross-client objects, or read access to other clients for data comparison. This is a redundant measure when you consider the lock protection mentioned above, however it does provide effective double security.

Deleting a Client

You can use the client copy tools to delete an obsolete client.

Migrating a Client

You can use the client copy tools to migrate a client from system A to system B.

Change Management (Central Customizing Changes)

We recommend that you use Business Configuration Sets (BC Sets) to make necessary changes to all clients, and then distribute these changes.

Recovery

Make a normal recovery to another backup system, and then migrate the restored client from the backup system to the production system.

For more information, see Recovery Solution.

Comparing Clients

The SAP Web Application Server contains dedicated functions for comparing the Customizing settings of one client with another client or template client:

Client-Specific Monitoring

The CCMS Monitoring tools also include some options for client-specific online monitoring of certain transactions and clients (see SAP Note 308048). These include

Up to and including Release 4.6C choose: Tools ® Administration ® Monitoring ® Performance ® Workload ® Analysis (or call Transaction ST03). Choose Choose for Analysis. A dialog box appears in which you can select a server and time. Then choose Accounting Profile ® Accounting by Client ® Client Profile.

As of Web Application Server 6.10 choose Administration ® Administration ® Monitoring ® Performance ® Workload ® Analysis (or call Transaction ST03N). At the top left of the navigation screen, choose Expert (other options are Administrator and Service Engineer). Choose TOTAL under Today's Workload. Select a time period (such as this week). Then choose Analysis Views ® User and Settlement Statistics ® Settlement Statistics in the bottom left navigation screen.

Background Job Support

System Administration

Database and system maintenance functions are supported only at the physical system platform level, and not at the client level. This affects the following:

 

See also:

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