Some internal components are installed in a different directory from the DB2 OLAP Server software. This directory is HYPERION_HOME\common, where HYPERION_HOME is defined as a system variable on Windows and an environment variable on UNIX. If the HYPERION_HOME variable already exists on the computer to which you are installing, the installation program places components common to other OLAP products in this location.
On UNIX, you must specify a location for HYPERION_HOME.
On Windows, the default location for HYPERION_HOME is c:\ibm. Additionally, the installation program sets the ARBORPATH variable as a subdirectory under the HYPERION_HOME directory. For example, if you accept the default value of c:\ibm for HYPERION_HOME , then the default value for ARBORPATH is c:\ibm\db2olap. The only exception is if you install the product directly into the root of your drive, such as c:\; in that case, HYPERION_HOME is set to c:\common.