Using Local Disks for Oracle Binary Files and Oracle Configuration Files

Placing the Oracle binary files and Oracle configuration files on the individual cluster nodes enables you to upgrade the Oracle application later without shutting down the data service.

Some versions of Oracle require you to shut down the data service during an upgrade. To determine whether you can upgrade the Oracle application without shutting down the data service, see your Oracle documentation.

The disadvantage is that you then have several copies of the Oracle application binary files and Oracle configuration files to maintain and administer.