Understanding the installation directory structure

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 12_6 or 1_0. If you are familiar with Replication Server 12.5, version 12.6 retains almost the same installation directory structure.

WARNING! Do not install Replication Server version 12.6 on top of the following Sybase products:

Replication Server version 12.5 or earlier
Adaptive Server version 12.5.0.x or earlier
Open Client/Server version 12.5.0 or earlier – Mac OS X includes only the OCS runtime files.
Not available for Mac – OpenSwitch version 12.5 or earlier
Not available for Mac – DirectConnect™ version 12.5 or earlier

Doing so incapacitates older versions of these products, and can also adversely affect other Sybase products.

You cannot reverse this with an uninstallation, as an uninstallation may remove required components of the older Sybase products updated by Replication Server version 12.6. Sybase recommends that you back up your current directory before installing Replication Server version 12.6.

Shared components are installed in separate subdirectories than component subdirectories. For example, the Replication Server subdirectory is $SYBASE/REP-12_6; however, Open Client (Mac OS X includes only the OCS runtime files) is installed in $SYBASE/OCS-12_5; and the Replication Manager plug-in for Sybase Central, Java Edition, RMPlugin.jar and its associated files are installed in $SYBASE/RMP-12_6. The exception is Adaptive Server Anywhere (ASA), which is installed in $SYBASE/REP-12_6/ASA8. 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.

If your earlier installation includes custom applications or scripts that refer to $SYBASE (UNIX) or %SYBASE% (Windows for Sybase Central) subdirectories, change them to reflect the new installation directory structure.

Three diagnostic servers, REP-12_6/bin/repserver.diag, REP-12_6/bin/ltm.diag, and RSM-12_6/bin/rsmsrvr.diag, are installed to capture and display information about internal processes. Do not delete these programs; you may need to use them, at the direction of Sybase Technical Support, to diagnose and resolve Replication Server, Replication Server Manager, or Log Transfer Manager (LTM) problems.