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Duplicate (Clone) Oracle Database to the Same Machine (同一机器数据库还原)(二)
continual…
Duplicate (Clone) Oracle Database to the Same Machine (同一机器数据库还原)(一)
2. Backup-based Duplication
When an DB operation error occurred , and flashback technique can not be used, you can use this way do a database point in time recover on same db server, to clone a new db to recover, then drop.
This is very simple to perform:
Create a backup of the source DB (if you do not have one already):
[oracle@dbserver58 admin]$ env|grep ORA
ORACLE_SID=pora58
ORACLE_BASE=/oracle
ORACLE_HOME=/oracle/product/11.2.0/db_1
RMAN> backup database;
Starting backup at 11-NOV-14
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=1710 device type=DISK
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00002 name=/oradata/pora58/sysaux01.dbf
input datafile file number=00004 name=/oradata/pora58/users01.dbf
input datafile file number=00001 name=/oradata/pora58/system01.dbf
input datafile file number=00003 name=/oradata/pora58/undotbs01.dbf
channel ORA_DISK_1: starting piece 1 at 11-NOV-14
channel ORA_DISK_1: finished piece 1 at 11-NOV-14
piece handle=/backup/fra/PORA58/backupset/2014_11_11/o1_mf_nnndf_TAG20141111T150900_b63fjdfl_.bkp tag=TAG20141111T150900 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
including current control file in backup set
including current SPFILE in backup set
channel ORA_DISK_1: starting piece 1 at 11-NOV-14
channel ORA_DISK_1: finished piece 1 at 11-NOV-14
piece handle=/backup/fra/PORA58/backupset/2014_11_11/o1_mf_ncsnf_TAG20141111T150900_b63fk6l6_.bkp tag=TAG20141111T150900 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 11-NOV-14
$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Tue Nov 11 15:09:35 2014
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
USERNAME INST_NAME HOST_NAME SID SERIAL# VERSION STARTED SPID
-------------------- -------------------- ------------------------- ----- -------- ---------- -------- ---------------
SYS pora58 dbserver58 1426 1335 11.2.0.4.0 20141111 25025
SQL> select dbms_flashback.GET_SYSTEM_CHANGE_NUMBER from dual;
GET_SYSTEM_CHANGE_NUMBER
------------------------
4840862
SQL> create table system.test as select * from dba_objects;
Table created.
SQL> select dbms_flashback.GET_SYSTEM_CHANGE_NUMBER from dual;
GET_SYSTEM_CHANGE_NUMBER
------------------------
4840986
SQL> update system.test set object_name='truncated';
87491 rows updated.
Note:
We think this operation is wrong
SQL> commit;
Commit complete.
SQL> select dbms_flashback.GET_SYSTEM_CHANGE_NUMBER from dual;
GET_SYSTEM_CHANGE_NUMBER
------------------------
4841040
Auxiliary db TNSNAME,LISTENER,PASSWORD, AUDIT FILE PATH config and created ,here omit.
DB CLONE point in time recovery
[oracle@dbserver58 ~]$ export ORACLE_SID=new58
[oracle@dbserver58 dbs]$ env|grep ORA
ORACLE_SID=new58
ORACLE_BASE=/oracle
ORACLE_HOME=/oracle/product/11.2.0/db_1
[oracle@dbserver58 ~]$ rman target sys/oracle@db1 auxiliary /
Recovery Manager: Release 11.2.0.4.0 - Production on Tue Nov 11 15:37:41 2014
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: PORA58 (DBID=745023158)
connected to auxiliary database: DUMMY (not mounted)
RMAN> run{
2> allocate channel prmy1 type disk;
3> allocate auxiliary channel stby type disk;
4> duplicate target database TO new58
5> UNTIL scn 4840986
6> spfile
7> parameter_value_convert 'pora58','new58'
8> set db_unique_name='new58'
9> set db_file_name_convert='/oradata/pora58/','/oradata/new58/'
10> set log_file_name_convert='/oradata/pora58/','/oradata/new58/'
11> set control_files='/oradata/new58/control01.ctl','/oradata/new58/control02.ctl'
12> set log_archive_max_processes='5'
13> BACKUP LOCATION '/backup/fra/PORA58/backupset/2014_11_11'
14> ;
15> }
allocated channel: prmy1
channel prmy1: SID=571 device type=DISK
allocated channel: stby
channel stby: SID=396 device type=DISK
Starting Duplicate Db at 11-NOV-14
released channel: prmy1
released channel: stby
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 11/11/2014 15:39:14
RMAN-05501: aborting duplication of target database
RMAN-06457: UNTIL SCN (4840986) is ahead of last SCN in archived logs (4825354)
# target pora58
SQL> select thread#, status, enabled, checkpoint_time, checkpoint_change# from v$thread;
THREAD# STATUS ENABLED CHECKPOINT_TIME CHECKPOINT_CHANGE#
---------- ------ -------- ----------------- ------------------
1 OPEN PUBLIC 20141111 10:00:31 4825354
SQL> alter system checkpoint;
System altered.
SQL> alter system archive log current;
System altered.
SQL> select thread#, status, enabled, checkpoint_time, checkpoint_change# from v$thread;
THREAD# STATUS ENABLED CHECKPOINT_TIME CHECKPOINT_CHANGE#
---------- ------ -------- ----------------- ------------------
1 OPEN PUBLIC 20141111 15:40:46 4842411
[oracle@dbserver58 ~]$ cd $ORACLE_HOME/dbs
[oracle@dbserver58 dbs]$ ls
hc_new58.dat hc_pora58.dat init.ora lkNEW58 lkPORA58 orapwnew58 orapwpora58 snapcf_pora58.f spfilenew58.ora spfilepora58.ora
[oracle@dbserver58 dbs]$ rm spfilenew58.ora
[oracle@dbserver58 dbs]$ rman target sys/oracle@db1 auxiliary /
Recovery Manager: Release 11.2.0.4.0 - Production on Tue Nov 11 15:45:06 2014
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: PORA58 (DBID=745023158)
connected to auxiliary database (not started)
RMAN> run{
2> allocate channel prmy1 type disk;
3> allocate auxiliary channel stby type disk;
4> duplicate target database TO new58
5> UNTIL scn 4840986
6> spfile
7> parameter_value_convert 'pora58','new58'
8> set db_unique_name='new58'
9> set db_file_name_convert='/oradata/pora58/','/oradata/new58/'
10> set log_file_name_convert='/oradata/pora58/','/oradata/new58/'
11> set control_files='/oradata/new58/control01.ctl','/oradata/new58/control02.ctl'
12> set log_archive_max_processes='5'
13> BACKUP LOCATION '/backup/fra/PORA58/backupset/2014_11_11'
14> ;
15> }
[oracle@dbserver58 dbs]$ rman target /
Recovery Manager: Release 11.2.0.4.0 - Production on Tue Nov 11 15:45:35 2014
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database (not started)
RMAN> startup nomount force
startup failed: ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/oracle/product/11.2.0/db_1/dbs/initnew58.ora'
starting Oracle instance without parameter file for retrieval of spfile
Oracle instance started
Total System Global Area 1068937216 bytes
Fixed Size 2260088 bytes
Variable Size 285213576 bytes
Database Buffers 775946240 bytes
Redo Buffers 5517312 bytes
rman target sys/oracle@db1 auxiliary /
run{
allocate channel prmy1 type disk;
allocate auxiliary channel stby type disk;
duplicate target database TO new58
UNTIL scn 4840986
spfile
parameter_value_convert 'pora58','new58'
set db_unique_name='new58'
set db_file_name_convert='/oradata/pora58/','/oradata/new58/'
set log_file_name_convert='/oradata/pora58/','/oradata/new58/'
set control_files='/oradata/new58/control01.ctl','/oradata/new58/control02.ctl'
set log_archive_max_processes='5'
BACKUP LOCATION '/backup/fra/PORA58/backupset/2014_11_11'
;
}
[oracle@dbserver58 dbs]$ rman target sys/oracle@db1 auxiliary /
Recovery Manager: Release 11.2.0.4.0 - Production on Tue Nov 11 15:45:48 2014
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: PORA58 (DBID=745023158)
connected to auxiliary database: DUMMY (not mounted)
RMAN> run{
2> allocate channel prmy1 type disk;
3> allocate auxiliary channel stby type disk;
4> duplicate target database TO new58
5> UNTIL scn 4840986
6> spfile
7> parameter_value_convert 'pora58','new58'
8> set db_unique_name='new58'
9> set db_file_name_convert='/oradata/pora58/','/oradata/new58/'
10> set log_file_name_convert='/oradata/pora58/','/oradata/new58/'
11> set control_files='/oradata/new58/control01.ctl','/oradata/new58/control02.ctl'
12> set log_archive_max_processes='5'
13> BACKUP LOCATION '/backup/fra/PORA58/backupset/2014_11_11'
14> ;
15> }
using target database control file instead of recovery catalog
allocated channel: prmy1
channel prmy1: SID=1426 device type=DISK
allocated channel: stby
channel stby: SID=396 device type=DISK
Starting Duplicate Db at 11-NOV-14
contents of Memory Script:
{
set until scn 4840986;
restore clone spfile to '/oracle/product/11.2.0/db_1/dbs/spfilenew58.ora';
sql clone "alter system set spfile= ''/oracle/product/11.2.0/db_1/dbs/spfilenew58.ora''";
}
executing Memory Script
executing command: SET until clause
Starting restore at 11-NOV-14
WARNING: A restore time was estimated based on the supplied UNTIL SCN
channel stby: starting datafile backup set restore
channel stby: restoring SPFILE
output file name=/oracle/product/11.2.0/db_1/dbs/spfilenew58.ora
channel stby: reading from backup piece /backup/fra/PORA58/backupset/2014_11_11/o1_mf_ncsnf_TAG20141111T150900_b63fk6l6_.bkp
channel stby: piece handle=/backup/fra/PORA58/backupset/2014_11_11/o1_mf_ncsnf_TAG20141111T150900_b63fk6l6_.bkp tag=TAG20141111T150900
channel stby: restored backup piece 1
channel stby: restore complete, elapsed time: 00:00:01
Finished restore at 11-NOV-14
sql statement: alter system set spfile= ''/oracle/product/11.2.0/db_1/dbs/spfilenew58.ora''
contents of Memory Script:
{
sql clone "alter system set db_name =
''NEW58'' comment=
''duplicate'' scope=spfile";
sql clone "alter system set audit_file_dest =
''/oracle/admin/new58/adump'' comment=
'''' scope=spfile";
sql clone "alter system set dispatchers =
''(PROTOCOL=TCP) (SERVICE=new58XDB)'' comment=
'''' scope=spfile";
sql clone "alter system set log_archive_format =
''new58_%t_%s_%r.arc'' comment=
'''' scope=spfile";
sql clone "alter system set db_unique_name =
''new58'' comment=
'''' scope=spfile";
sql clone "alter system set db_file_name_convert =
''/oradata/pora58/'', ''/oradata/new58/'' comment=
'''' scope=spfile";
sql clone "alter system set log_file_name_convert =
''/oradata/pora58/'', ''/oradata/new58/'' comment=
'''' scope=spfile";
sql clone "alter system set control_files =
''/oradata/new58/control01.ctl'', ''/oradata/new58/control02.ctl'' comment=
'''' scope=spfile";
sql clone "alter system set log_archive_max_processes =
5 comment=
'''' scope=spfile";
shutdown clone immediate;
startup clone nomount;
}
executing Memory Script
sql statement: alter system set db_name = ''NEW58'' comment= ''duplicate'' scope=spfile
sql statement: alter system set audit_file_dest = ''/oracle/admin/new58/adump'' comment= '''' scope=spfile
sql statement: alter system set dispatchers = ''(PROTOCOL=TCP) (SERVICE=new58XDB)'' comment= '''' scope=spfile
sql statement: alter system set log_archive_format = ''new58_%t_%s_%r.arc'' comment= '''' scope=spfile
sql statement: alter system set db_unique_name = ''new58'' comment= '''' scope=spfile
sql statement: alter system set db_file_name_convert = ''/oradata/pora58/'', ''/oradata/new58/'' comment= '''' scope=spfile
sql statement: alter system set log_file_name_convert = ''/oradata/pora58/'', ''/oradata/new58/'' comment= '''' scope=spfile
sql statement: alter system set control_files = ''/oradata/new58/control01.ctl'', ''/oradata/new58/control02.ctl'' comment= '''' scope=spfile
sql statement: alter system set log_archive_max_processes = 5 comment= '''' scope=spfile
Oracle instance shut down
connected to auxiliary database (not started)
Oracle instance started
Total System Global Area 6012973056 bytes
Fixed Size 2264176 bytes
Variable Size 1711276944 bytes
Database Buffers 4294967296 bytes
Redo Buffers 4464640 bytes
allocated channel: stby
channel stby: SID=1423 device type=DISK
contents of Memory Script:
{
set until scn 4840986;
sql clone "alter system set db_name =
''PORA58'' comment=
''Modified by RMAN duplicate'' scope=spfile";
sql clone "alter system set db_unique_name =
''NEW58'' comment=
''Modified by RMAN duplicate'' scope=spfile";
shutdown clone immediate;
startup clone force nomount
restore clone primary controlfile;
alter clone database mount;
}
executing Memory Script
executing command: SET until clause
sql statement: alter system set db_name = ''PORA58'' comment= ''Modified by RMAN duplicate'' scope=spfile
sql statement: alter system set db_unique_name = ''NEW58'' comment= ''Modified by RMAN duplicate'' scope=spfile
Oracle instance shut down
Oracle instance started
Total System Global Area 6012973056 bytes
Fixed Size 2264176 bytes
Variable Size 1711276944 bytes
Database Buffers 4294967296 bytes
Redo Buffers 4464640 bytes
allocated channel: stby
channel stby: SID=1423 device type=DISK
Starting restore at 11-NOV-14
channel stby: starting datafile backup set restore
channel stby: restoring control file
channel stby: reading from backup piece /backup/fra/PORA58/backupset/2014_11_11/o1_mf_ncsnf_TAG20141111T150900_b63fk6l6_.bkp
channel stby: piece handle=/backup/fra/PORA58/backupset/2014_11_11/o1_mf_ncsnf_TAG20141111T150900_b63fk6l6_.bkp tag=TAG20141111T150900
channel stby: restored backup piece 1
channel stby: restore complete, elapsed time: 00:00:01
output file name=/oradata/new58/control01.ctl
output file name=/oradata/new58/control02.ctl
Finished restore at 11-NOV-14
database mounted
contents of Memory Script:
{
set until scn 4840986;
set newname for datafile 1 to
"/oradata/new58/system01.dbf";
set newname for datafile 2 to
"/oradata/new58/sysaux01.dbf";
set newname for datafile 3 to
"/oradata/new58/undotbs01.dbf";
set newname for datafile 4 to
"/oradata/new58/users01.dbf";
restore
clone database
;
}
executing Memory Script
executing command: SET until clause
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
Starting restore at 11-NOV-14
channel stby: starting datafile backup set restore
channel stby: specifying datafile(s) to restore from backup set
channel stby: restoring datafile 00001 to /oradata/new58/system01.dbf
channel stby: restoring datafile 00002 to /oradata/new58/sysaux01.dbf
channel stby: restoring datafile 00003 to /oradata/new58/undotbs01.dbf
channel stby: restoring datafile 00004 to /oradata/new58/users01.dbf
channel stby: reading from backup piece /backup/fra/PORA58/backupset/2014_11_11/o1_mf_nnndf_TAG20141111T150900_b63fjdfl_.bkp
channel stby: piece handle=/backup/fra/PORA58/backupset/2014_11_11/o1_mf_nnndf_TAG20141111T150900_b63fjdfl_.bkp tag=TAG20141111T150900
channel stby: restored backup piece 1
channel stby: restore complete, elapsed time: 00:00:25
Finished restore at 11-NOV-14
contents of Memory Script:
{
switch clone datafile all;
}
executing Memory Script
datafile 1 switched to datafile copy
input datafile copy RECID=8 STAMP=863365623 file name=/oradata/new58/system01.dbf
datafile 2 switched to datafile copy
input datafile copy RECID=9 STAMP=863365623 file name=/oradata/new58/sysaux01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=10 STAMP=863365623 file name=/oradata/new58/undotbs01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=11 STAMP=863365623 file name=/oradata/new58/users01.dbf
contents of Memory Script:
{
set until scn 4840986;
recover
clone database
delete archivelog
;
}
executing Memory Script
executing command: SET until clause
Starting recover at 11-NOV-14
starting media recovery
archived log for thread 1 with sequence 53 is already on disk as file /oradata/arch/pora58_1_53_860491320.arc
archived log file name=/oradata/arch/pora58_1_53_860491320.arc thread=1 sequence=53
media recovery complete, elapsed time: 00:00:01
Finished recover at 11-NOV-14
Oracle instance started
Total System Global Area 6012973056 bytes
Fixed Size 2264176 bytes
Variable Size 1711276944 bytes
Database Buffers 4294967296 bytes
Redo Buffers 4464640 bytes
contents of Memory Script:
{
sql clone "alter system set db_name =
''NEW58'' comment=
''Reset to original value by RMAN'' scope=spfile";
sql clone "alter system reset db_unique_name scope=spfile";
shutdown clone immediate;
startup clone nomount;
}
executing Memory Script
sql statement: alter system set db_name = ''NEW58'' comment= ''Reset to original value by RMAN'' scope=spfile
sql statement: alter system reset db_unique_name scope=spfile
Oracle instance shut down
connected to auxiliary database (not started)
Oracle instance started
Total System Global Area 6012973056 bytes
Fixed Size 2264176 bytes
Variable Size 1711276944 bytes
Database Buffers 4294967296 bytes
Redo Buffers 4464640 bytes
allocated channel: stby
channel stby: SID=1423 device type=DISK
sql statement: CREATE CONTROLFILE REUSE SET DATABASE "NEW58" RESETLOGS ARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 292
LOGFILE
GROUP 1 ( '/oradata/new58/redo01.rlog' ) SIZE 200 M REUSE,
GROUP 2 ( '/oradata/new58/redo02.rlog' ) SIZE 200 M REUSE,
GROUP 3 ( '/oradata/new58/redo03.rlog' ) SIZE 200 M REUSE,
GROUP 4 ( '/oradata/new58/redo04.rlog' ) SIZE 200 M REUSE
DATAFILE
'/oradata/new58/system01.dbf'
CHARACTER SET ZHS16GBK
contents of Memory Script:
{
set newname for tempfile 1 to
"/oradata/new58/temp01.dbf";
switch clone tempfile all;
catalog clone datafilecopy "/oradata/new58/sysaux01.dbf",
"/oradata/new58/undotbs01.dbf",
"/oradata/new58/users01.dbf";
switch clone datafile all;
}
executing Memory Script
executing command: SET NEWNAME
renamed tempfile 1 to /oradata/new58/temp01.dbf in control file
cataloged datafile copy
datafile copy file name=/oradata/new58/sysaux01.dbf RECID=1 STAMP=863365638
cataloged datafile copy
datafile copy file name=/oradata/new58/undotbs01.dbf RECID=2 STAMP=863365638
cataloged datafile copy
datafile copy file name=/oradata/new58/users01.dbf RECID=3 STAMP=863365638
datafile 2 switched to datafile copy
input datafile copy RECID=1 STAMP=863365638 file name=/oradata/new58/sysaux01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=2 STAMP=863365638 file name=/oradata/new58/undotbs01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=3 STAMP=863365638 file name=/oradata/new58/users01.dbf
Reenabling controlfile options for auxiliary database
Executing: alter database add supplemental log data
Executing: alter database force logging
contents of Memory Script:
{
Alter clone database open resetlogs;
}
executing Memory Script
database opened
Finished Duplicate Db at 11-NOV-14
released channel: prmy1
released channel: stby
RMAN> exit
$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Tue Nov 11 15:49:48 2014
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 – 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
USERNAME INST_NAME HOST_NAME SID SERIAL# VERSION STARTED SPID OPID CPID SADDR PADDR
——————– ——————– ————————- —– ——– ———- ——– ————— —– ————— —————- —————-
SYS new58 dbserver58 853 7 11.2.0.4.0 20141111 26099 19 26098 00000001C5AFBBC8 00000001C5117AA8
SQL> select object_name from system.test where rownum<=10; OBJECT_NAME ---------------------------------------------------------------------- ICOL$ I_USER1 CON$ UNDO$ C_COBJ# I_OBJ# PROXY_ROLE_DATA$ I_IND1 I_CDEF2 I_OBJ5 10 rows selected. # source db (pora58) SQL> select object_name from system.test where rownum<=10; OBJECT_NAME ------------------------------------------------------------------ truncated truncated truncated truncated truncated truncated truncated truncated truncated truncated 10 rows selected. Tip: You can using UNTIL TIME as well as UNTIL SCN. SCN_TO_TIMESTAMP: for converting given scn to timestamp value ; TIMESTAMP_TO_SCN : For getting SCN equivalent of the given timestamp value. You must do to_timestamp convertion for the character value. --over--
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