The OFA-compliant Oracle
home path, corresponding to the environment variable ORACLE_HOME, contains a suffix that
corresponds to the type and incarnation of the installation. For example, one installation of
Oracle 11g, two different installations of Oracle 10g, and one installation of Oracle9i may reside
in the following three directories:
/u01/app/oracle/product/9.2.0.1
/u01/app/oracle/product/10.1.0/db_1
/u01/app/oracle/product/10.1.0/db_2
/u01/app/oracle/product/11.1.0/db_1
Chapter 3: Planning and Managing Tablespaces 69
At the same time, the Oracle client executables and configuration may be stored in the same
parent directory as the database executables:
/u01/app/oracle/product/10.1.0/client_1
Some installation directories will never have more than one instance for a given product; for
example, Oracle Cluster Ready Services (CRS) will be installed in the following directory given
the previous installations:
/u01/app/oracle/product/11.1.0/crs
Because CRS can only be installed once on a system, it does not have an incrementing
numeric suffix.
Database Files Any non-ASM Oracle datafiles reside in /
/oradata/name>, where is one of the mount points we discussed earlier, and name> is the value of the initialization parameter DB_NAME. For example, /u02/oradata/rac0 and
/u03/oradata/rac0 would contain the non-ASM control files, redo log files, and datafiles for the
instance rac0, whereas /u05/oradata/dev1 would contain the same files for the dev1 instance on
the same server.
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