When you have multiple instances of a given Oracle Business Intelligence component, files and directories including global cache and shared Oracle BI Scheduler scripts are located on a shared storage device (such as NAS or SAN).
Using shared files and directories simplifies management of your system (see the following illustration) including scale out of Oracle Business Intelligence components.
This section contains the following topics:
Oracle Business Intelligence metadata is stored in a singleton data directory (SDD).
The default location is set to:
DOMAIN_HOME/bidata
The SDD path is defined in the file bi-environment.xml, located in:
DOMAIN_HOME/config/fmwconfig/bienv/core/bi-environment.xml
For more information, see Key Directories in Oracle Business Intelligence.
To change the singleton data directory (SDD):
The SDD is now configured for all host computers.
The global cache is a query cache that is shared by all Oracle BI Servers participating in a cluster.
For more information, see About the Global Cache.
It is recommended that you configure the global cache so that cache seeding and purging events can be shared by all Oracle BI Servers participating in a cluster.
To set up the global cache: