Database Clone Migrate Steps

Simple steps to clone or move a Oracle database from one server to another serve
r
Requirements: New server should have same Oracle Version and Same OS for Databas
e cloning to work.
1) Copy all the datafiles, controlfiles and logfiles and spfile/init and orapwor
a11g to new server in same folder structure.
2) Install same Oracle version on new server.
3) Create folders to store alert_sid.log. Create folders for background_dump_des
t user_dump_dest on new server same as Old server.
cd /home/oracle/admin
mkdir ora11g
(ORACLE_SID)
cd ora11g
mkdir adump bdump cdump pfile udump
4) On the new server set ORACLE_HOME, ORACLE_SID and PATH.
5) start the database on new server.
sqlplus / as sysdba
startup
Note: If we are cloning/migrating to different OS then we need to use RMAN Conve
rt command to make datafiles compatible to different OS. This is used when Migra
ting a database from Sun Solaris to Linux.
Using Netapp, EMC storage Snapshot/Clone technologies Unix admin can create copi
es of 10 Tera byte database files to new servers in few minutes. So DBAs are not
required to use RMAN duplicate or cp command to copy Oracle Database files to n
ew servers. Using RMAN/cp command to copy these files to new server can take 1015 hours which is very time consuming.