How to Manually Clone a Database to Another Node In this Document Goal Solution Applies to: Oracle Server - Enterprise Edition - Version: 07.03.04 to 11.1.1 Information in this document applies to any platform. Goal This note gives a step by step guide about how to manually clone or restore the database to a different host. Solution 1) Prerequisites ---------------- - The copy of the datafiles must be done with the database closed or the database must be in ARCHIVELOG mode, 2) init.ora or spfile and controlfile ---------------------------------------------------- - You need to copy the init.ora or spfile file to the target host and locate it in ORACLE_HOME\dbs - Copy the controlfile(s), all the datafiles and all the archivelogs generated, to the target host. If database is open then, you need to put all the tablespaces in backup mode, before starting the copy: ALTER TABLESPACE <TABLESPACE_NAME> BEGIN BACKUP; >> copy all the tablespace datafiles ALTER TABLESPACE <TABLESPACE_NAME> END BACKUP; ==> Do this for all the tablespces 3) Set the oracle environment ------------------------- C:\> set ORACLE_SID=<SID> C:\> sqlplus "sys/manager as sysdba" - Check the init.ora parameters that reference location control_files = <duplicate db control file(s)>
Applies to: Oracle Server - Enterprise Edition - Version:
07.03.04 to 11.1.1Information in this document applies to any
platform.
GoalThis note gives a step by step guide about how to manually
clone or restore the database to a different host.
Solution1) Prerequisites ---------------- - The copy of the
datafiles must be done with the database closed or the database
must be in ARCHIVELOG mode, 2) init.ora or spfile and controlfile
---------------------------------------------------- - You need to
copy the init.ora or spfile file to the target host and locate it
in ORACLE_HOME\dbs - Copy the controlfile(s), all the datafiles and
all the archivelogs generated, to the target host.
If database is open then, you need to put all the tablespaces in
backup mode, before starting the copy:
ALTER TABLESPACE BEGIN BACKUP;
>> copy all the tablespace datafiles
ALTER TABLESPACE END BACKUP;
==> Do this for all the tablespces
3) Set the oracle environment ------------------------- C:\>
set ORACLE_SID= C:\> sqlplus "sys/manager as sysdba" - Check the
init.ora parameters that reference location control_files =
5) Startup the database in mount status SQL> startup mount
SQL> Rename any of the datafiles to the new location, if
necessary: ALTER DATABASE RENAME FILE
'/FULL_PATH_OF_OLD_LOCATION/AND_DATAFILE_NAME.DBF' TO
'/FULL_PATH_OF_NEW_LOCATION/AND_DATAFILE_NAME.DBF'; SQL> Rename
the logfiles to the new location if necessart alter database rename
file '' to ''; 6) Check that all the datafiles are in the right
location: select file#, name from v$datafile;
7) Perform incomplete recovery: SQL> recover database using
backup controlfile until cancel; Forward the database applying
archived redo log files until you decide to stop recovery by typing
cancel at the prompt (assuming that you have required archived redo
log files in the log_archive_dest directory) You may archive the
source database redo log files and apply them at the target
database if required. SQL> alter database open resetlogs; 8) In
Windows platforms, if you want that the database will start
automatically then edit the registry: regedit go to
HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\HOMEX change the key :
ORA__AUTOSTART=TRUE
