Cloning using rman backups?

Question

Is it possible to clone using RMAN backups?
How do we do it . Please tell me the steps of configuring.

Answer 1

Hi,
Let's take the example to create the auxiliary (clone) database using the rman backup in same server.
1)Building the auxiliary database directory structure
a) datafile, control file, redo file location
b) pfile,bdump,cdump,udump
2) Create the pfile from spfile (if required) and use it for auxiliary database with appropriate modification
3) Make all the necessary changes to your aux1 init.ora file
control_files=….
background_dump_dest=….
user_dump_dest=…
log_archive_dest_1=….
db_name=‘aux1’
instance_name=‘aux1’
remote_login_passwordfile=exclusive
4) Start aux1 instance in nomount mode
ORACLE_SID=aux1
export ORACLE_SID=aux1
sqlplus /nolog
sql>connect / as sysdba
sql> startup nomount pfile=/test/initaux1.ora
5)Configure the listener and tnsname.ora file for auxiliary database. Restart the listener.
lsnrctl>stop
lsnrctl>start
listener.ora entry
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = AUX1)
(ORACLE_HOME=/ORAHOME1/)
(SID_NAME = AUX1)
TNSNAMES.ORA ENTRY
AUX1 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP) (HOST = xxx) (PORT = 1521)
(CONNECT_DATA =
(SID = AUX1)
(SERVER = DEDICATED)
6) Connect to the target and auxiliary instance and run the duplicate command
Rman>connect target /
Rman>connect auxilary sys/password@aux1
RMAN> connect target sys@prod
target database Password:
connected to target database: aaaa (DBID=4199802962)
RMAN> connect auxiliary sys@aux1
auxiliary database Password:
connected to auxiliary database: aux1 (not mounted)
RMAN> run
2> {
3> set newname for datafile 1 to 'C:\AUX1\SYSTEM01.DBF';
4> set newname for datafile 2 to 'C:\AUX1\UNDOTBS01.DBF';
5> set newname for datafile 3 to 'C:\AUX1\CWMLITE01.DBF';
6> set newname for datafile 4 to 'C:\AUX1\DRSYS01.DBF';
7> set newname for datafile 5 to 'C:\AUX1\EXAMPLE01.DBF';
8> set newname for datafile 6 to 'C:\AUX1\INDX01.DBF';
9> set newname for datafile 7 to 'C:\AUX1\TOOLS01.DBF';
10> set newname for datafile 8 to 'C:\AUX1\USERS01.DBF';
11> DUPLICATE TARGET DATABASE TO aux1
12> LOGFILE
13> GROUP 1 ('C:\aux1\redo01.log') size 100m reuse,
14> GROUP 2 ('C:\aux1\redo02.log') size 100m reuse;
15> }