Oracle B32100-01 User Manual

Requirements for High Availability Configurations

Oracle Application Server Installation Guide

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Has write privileges on remote directories.

Check that all the nodes where you want to install in a high availability configuration 
do not have existing oraInventory directories.

Details of all Oracle software installations are recorded in the Oracle Installer 
Inventory directory. Typically, this directory is unique to a node and named 
oraInventory

. The directory path of the Oracle Installer Inventory directory is 

stored in the oraInst.loc file. 

The existence of this file on a node confirms that the node contains some Oracle 
software installation. Since the high availability configurations require installations on 
multiple nodes with Oracle Installer Inventory directories on a file system that may 
not be accessible on other nodes, the installation instructions in this chapter and 
subsequent chapters for high availability configurations assume that there have not 
been any previous installations of any Oracle software on any of the nodes that are 
used for this high availability configuration. The oraInst.loc file and the Oracle 
Installer Inventory directory should not exist on any of these nodes prior to these high 
availability installations. 

To check if a node contains an oraInventory directory that could be detected by the 
installer:

On each node, check for the existence of the oraInst.loc file. This file is stored 
in the /var/opt/oracle directory. 

If a node does not contain this file, then it does not have an oraInventory 
directory that will be used by the installer. You can check the next node.

For nodes that contain the oraInst.loc file, rename the file and the 
oraInventory

 directory. The installer then prompts you to enter a location for a 

new oraInventory directory.

For example enter the following commands as root: 

# cat /var/opt/oracle/oraInst.loc

inventory_loc=/localfs/app/oracle/oraInventory 

inst_group=dba 

# mv /var/opt/oracle/oraInst.loc /var/opt/oracle/oraInst.loc.orig 

# mv /localfs/app/oracle/oraInventory /localfs/app/oracle/oraInventory.orig

Because the oraInst.loc file and the Oracle Installer Inventory directory are 
required only during the installation of Oracle software, and not at runtime, renaming 
them and restoring them later does not affect the behavior of any installed Oracle 
software on any node. Make sure that the appropriate oraInst.loc file and Oracle 
Installer Inventory directory are in place before starting the Oracle Universal Installer. 

For an OracleAS Disaster Recovery configuration, the correct 

oraInst.loc

 file and associated oraInventory directory are 

required during normal operation, not just during installation.