32-bit and 64-bit requirements for your OS
The BMC Remedy AR System server binary for Windows can be installed as a native 64-bit executable on 64-bit operating-system platforms. The Oracle Solaris, HP-UX (Itanium), and IBM AIX servers continue to be 64-bit releases.
The installation includes both 32-bit and 64-bit libraries, to support 32-bit and 64-bit applications. You must install the 64-bit BMC Remedy AR System server on a compatible 64-bit operating system platform.
For Windows and UNIX, arserverd is the only 64-bit binary; the others are 32-bit. Therefore, other binaries might have dependencies on some 32-bit operating system libraries.
For the most up-to-date information about 64-bit BMC Remedy AR System server compatibility with specific operating systems and versions, see Checking system requirements and supported configurations.
64-bit servers must run with 64-bit database clients.
64-bit database client libraries
The database for a 64-bit BMC Remedy AR System server must use 64-bit database client libraries. Before installing a 64-bit version of BMC Remedy AR System, make sure that the 64-bit database client libraries are installed on the computer that will run the BMC Remedy AR System server (arserver.exe).
Although the 64-bit server can make use of a 64-bit address space, it stores 32-bit values in the database and exchanges 32-bit values with API clients. It does not store 64-bit values in the database.
When a 64-bit AR System server is installed, all of its 64-bit dependent libraries are installed in a separate lib64 directory within the AR System server installation directory, except for the arserver.exe file, which is installed directly in the AR System server installation directory. The existing BMC Remedy AR System server installation directory contains all the 32-bit libraries and other platform processes. The installer sets the <installDirectory> and <installDirectory\>lib64 path variable.
On the HP Itanium platform (HPIA-64), HP-PA plug-in applications must be configured to run on the C-based plug-in server. On the other 64-bit platforms, plug-in applications can run on either the C-based or the Java-based plug-in server.
The BMC Remedy AR System Java-based applications, such as BMC Remedy Mid Tier, Email Engine, Developer Studio, and Flashboards server, are already compiled as 32-bit for all platforms, and require that you use a 32-bit Java Virtual Machine (JVM) on a 32-bit operating system.
The BMC Remedy AR System Java-based applications are compiled as 64-bit for all platforms and require that you install a 32-bit or 64-bit JVM.
The exception to the 64-bit JVM support is the BMC Remedy Email Engine, in which the MAPI protocol is disabled for 64-bit JVM. If you are using the MAPI protocol, the Email Engine requires a 32-bit JVM.
You can specify this exception in the installer if required for your installation.