To simplify the maintenance of your Oracle installation, you can install the Oracle binary files and Oracle configuration files on a shared file system. The following shared file systems are supported:
The Sun StorageTek QFS shared file system
The cluster file system
If you use the cluster file system, decide which volume manager to use:
Solaris Volume Manager
VxVM without the cluster feature
VxVM is supported only on the SPARC platform.
A file system on a qualified NAS device
If you put the Oracle binary files and Oracle configuration files on a shared file system, you have only one copy to maintain and manage. However, you must shut down the data service in the entire cluster to upgrade the Oracle application. If a short period of downtime for upgrades is acceptable, place a single copy of the Oracle binary files and Oracle configuration files on a shared file system.