The directory structure provides an overview of the installation directory, subdirectory hierarchy, and the naming convention used for the installed components.
Most components of SAP Replication Server are installed in their own subdirectories, which contain the executable program, installation and configuration tools, and display-related files needed by the component. The naming convention for subdirectories includes a component identifier, such as REP (for SAP Replication Server) or OCS (for Open Client™ and SAP® Open Server™), and the software release version.
Version 15.7.1 SP200 includes a new version of SAP Replication Server and many of its supporting components. Other products may contain earlier versions of the same components. Installing version 15.7.1 SP200 into the same directory with existing products should not impact the existing products. However, it may cause some environment variables to change. Reset the environment variables to make individual products work.
You can install version 15.7.1 SP200 in the same directory as SAP ASE and Open Client and SAP Open Server versions 15.5 or later.
Do not uninstall version 15.7.1 SP200 if it has been installed in the same directory as older products that were installed using the InstallShield installer, otherwise, these products may not work correctly.
You can install version 15.7.1 SP200 on top of version 12.6 and later, in the same %SYBASE% directory. Doing so creates a duplicate entry in the sql.ini file for SAMPLE_RS, which is the sample Replication Server. rs_init warns you about the duplicate entry and uses the first instance of SAMPLE_RS found in the sql.ini file.
See Upgrades and Downgrades Using Existing Directories in the Configuration Guide.
Doing so incapacitates older versions of these products, and may also adversely affect other products. If you perform one of these installations, you cannot reverse it with an uninstallation, as uninstalling might remove required components of the older products updated by SAP Replication Server version 15.7.1 SP200. For this reason, SAP recommends that you back up your current directory before installing version 15.7.1 SP200.
If you are installing SAP Replication Server 15.7.1 SP200 in an existing installation directory that contains SAP ASE version 15.0.x, you may be asked if you want to install older locales or charset files on top of newer files. To ensure that you have the latest version of these files, select No to all.
Shared components are installed in subdirectories that are separate from component subdirectories. For example, the subdirectory is %SYBASE%\REP-15_5. However, Open Client is installed in %SYBASE%\OCS-16_0. The exception is SAP SQL Anywhere, which is installed in %SYBASE%\REP-15_5\ASA16, because it is used only for SAP Replication Server. Version 15.7.1 SP200 also includes SAP SQL Anywhere version 12 installed in %SYBASE%\REP-15_5\ASA12. SAP SQL Anywhere version 12 is used to upgrade an ERSSD database format if you have installed an earlier version of SAP SQL Anywhere. As a result, the directory structure enables you to install into an existing %SYBASE% directory structure, as well as to install and use multiple versions of some components.
A diagnostic server (REP-15_5\bin\drepsrvr.exe)captures and displays information about internal processes. Do not delete this program as you may need to use it at the direction of SAP Product Support, to diagnose and resolve these problems.