Learn about the Replication Server installation directory and the subdirectories into which components are installed.
Most components of Replication Server are installed in their own subdirectories, with 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 Replication Server) or OCS (for Open Client™ and Open Server™), and the software release version, such as 15_6.
Replication Server 15.6 includes a new version of Replication Server and many of its supporting components. Other Sybase products may contain earlier versions of the same components. You can install Replication Server 15.6 into the same directory containing these existing products.
However, if you are using other Sybase products, installing Replication Server 15.6 may cause some environment variables to change. Reset the environment variables to make individual products work.
Sybase recommends that you do not uninstall Replication Server 15.6 if it has been installed in the same directory as older Sybase products that have a version number lower than 15.5, otherwise, these products may not work correctly.
You can install Replication Server 15.6 on top of Replication Server 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.
Shared components are installed in subdirectories that are separate from component subdirectories. For example, the Replication Server subdirectory is %SYBASE%\REP-15_5. However, Open Client is installed in %SYBASE%\OCS-15_0. The exception is SQL Anywhere, which is installed in %SYBASE%\REP-15_5\ASA11, because it is used only for Replication Server. 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) is installed to capture and display information about internal processes. Do not delete this program as you may need to use it at the direction of Sybase Technical Support, to diagnose and resolve Replication Server problems.