基於RMAN從活動數據庫異機克隆(rman duplicate from active DB)

時間  2019-12-02
標籤 基於 rman 活動 數據庫 克隆 duplicate active 欄目 快樂工作 简体版
原文   原文鏈接

      Oracle 11g RMAN可以實現基於活動數據庫進行異機克隆，從而省去須要先備份再ftp到輔助服務器的過程。這一切能夠所有交給Oracle來搞定。在克隆期間，Oracle會讀取Target DB的全部數據結構，無須人爲的干預(不一樣的磁盤系統，文件路徑與文件名要指定轉換方式)。儘管如此，對於生產環境數據庫在整個克隆期間性能會降低，其次在Target Server與Auxiliary Server中會產生較大的網絡流量。若是這些能夠接受的話，從活動數據庫進行異機克隆是一個不錯的選擇。本文首先描述了克隆時不一樣的鏈接與克隆方式樣本，最後演示了基於活動數據庫的克隆。linux

 

一、RMAN不一樣克隆類型的鏈接方式
     關於RMAN不一樣克隆類型，請參考: 基於 RMAN 的同機數據庫克隆 基於RMAN的異機數據庫克隆(rman duplicate)
     $ export ORACLE_SID=sybo3
  
     # 從備份集克隆，不鏈接到Target DB以及catalog，或者沒有使用catalog
     $ rman AUXILIARY /
  
     # 從備份集克隆，無catalog，元數據來源於Target DB控制文件
     $ rman TARGET sys/pwd@TAR AUXILIARY sys/pwd@AUX
  
     # 從備份集克隆鏈接到catalog，但不鏈接到target DB，元數據庫來自RMAN catalog
     $ rman CATALOG rman/pwd@catalogdb AUXILIARY sys/pwd@AUX
  
     # 同時鏈接到target DB以及catalog 元數據來源於Target DB控制文件或catalog，該方式支持從備份集克隆，從活動數據庫克隆
     $ rman TARGET sys/pwd@TAR CATALOG rman/pwd@catalogdb AUXILIARY sys/pwd@AUXsql

 

二、經常使用的數據庫克隆場景
     # Auxiliary DB使用與Target DB相同的磁盤系統，文件位置及文件名，下同。須要轉換的情形請參考: RMAN 數據庫克隆文件位置轉換方法
     DUPLICATE TARGET DATABASE TO sybo3
       SPFILE
       NOFILENAMECHECK;
  
     # 將數據庫克隆到Target DB一週之前的狀態，注，備份集或歸檔日誌應存在
     DUPLICATE TARGET DATABASE TO sybo3
       UNTIL TIME 'SYSDATE-7'
       SPFILE
       NOFILENAMECHECK;
  
     # 備份集保存在不一樣於Target DB保存的位置，此時須要在RMAN中單獨指定其位置
     DUPLICATE DATABASE TO sybo3
       SPFILE
       BACKUP LOCATION '/u01/bak/fast_recovery_area/sybo3'
       NOFILENAMECHECK;shell

 

三、基於活動數據庫克隆圖示數據庫

      

四、演示機遇活動數據庫異機克隆
服務器

--環境:    
--目標數據庫: 192.168.7.25/sybo3      /u01/database/sybo3   主機名:linux3       
--輔助數據庫: 192.168.7.26/sybo3      /u01/database/sybo3   主機名:linux4   目標數據庫與輔助數據庫使用相同的文件位置    
--說明：        
--本次演示使用爲使用任何備份文件，鏈接到target DB。    
--對於下面描述過程當中，如建立參數文件，密碼文件，監聽等等有不甚瞭解的，可參考下面連接中有關文章的描述。       
--http://blog.csdn.net/robinson_0612/article/category/827734  (體系結構相關)        
--http://blog.csdn.net/robinson_0612/article/category/828434  (網絡配置相關)      

[oracle@linux3 database]$ cat /etc/issue      
Enterprise Linux Enterprise Linux Server release 5.5 (Carthage)      
Kernel \r on an \m      
      
SQL> select * from v$version where rownum<2;      
      
BANNER      
--------------------------------------------------------------------------------        
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production  

--Target DB的配置,位於主機linux3
SQL> select instance_name,host_name from v$instance;

INSTANCE_NAME    HOST_NAME
---------------- ----------------------------------------------------------------
sybo3            linux3.orasrv.com

--Target DB處於歸檔模式
SQL> select name,open_mode,log_mode from v$database;

NAME      OPEN_MODE            LOG_MODE
--------- -------------------- ------------
SYBO3     READ WRITE           ARCHIVELOG

--Target DB上用於驗證克隆成功的表
SQL> select * from t;

NAME       ACTION
---------- --------------------
Robinson   Transfer DB
Jackson    Transfer DB by rman

-- Author : Robinson Cheng
-- Blog   : http://blog.csdn.net/robinson_0612

[oracle@linux3 ~]$ export ORACLE_SID=sybo3
[oracle@linux3 ~]$ rman target /
RMAN> list backupset;         --->目標數據庫無任何備份集

specification does not match any backup in the repository

RMAN> list copy;

specification does not match any datafile copy in the repository
specification does not match any control file copy in the repository
specification does not match any archived log in the repository

RMAN> list backup of archivelog all;

specification does not match any backup in the repository


a、在Auxiliary server建立相應的dump文件夾   
[oracle@linux4 database]$ more sybo3.sh    
#!/bin/sh   
mkdir -p /u01/database   
mkdir -p /u01/database/sybo3/adump   
mkdir -p /u01/database/sybo3/controlf   
mkdir -p /u01/database/sybo3/fra   
mkdir -p /u01/database/sybo3/oradata   
mkdir -p /u01/database/sybo3/redo   
mkdir -p /u01/database/sybo3/dpdump   
mkdir -p /u01/database/sybo3/pfile   
[oracle@linux4 database]$ ./sybo3.sh   


b、配置輔助實例參數文件   
--因爲auxiliary DB與target DB不存在文件位置轉換，所以無需做任何修改，直接將其ftp到Auxiliary server
--若是沒有pfile文件，可從target db生成。 create pfile from spfile;
[oracle@linux3 ~]$ scp $ORACLE_HOME/dbs/initsybo3.ora 192.168.7.26:$ORACLE_HOME/dbs   


c、生成輔助實例密碼文件      
--若是使用orapwd命令創建密碼文件應保證與target DB密碼相同
--或者直接使用Target DB的密碼文件
[oracle@linux3 ~]$ scp $ORACLE_HOME/dbs/orapwsybo3 192.168.7.26:$ORACLE_HOME/dbs


d、在Auxiliary Server與Target Server配置監聽(方式多樣，不詳述)
--Auxiliary Server
[oracle@linux4 admin]$ more listener.ora
SID_LIST_LISTENER_SYBO3 =
  (SID_LIST =
    (SID_DESC =
      (GLOBAL_DBNAME = sybo3.orasrv.com)
      (ORACLE_HOME = /u01/oracle/db_1)
      (SID_NAME = sybo3)
    )
  )

LISTENER_SYBO3 =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.7.26)(PORT = 1531))
  )

ADR_BASE_LISTENER_SYBO3 = /u01/oracle
[oracle@linux4 admin]$ more tnsnames.ora 
TAR =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.7.25)(PORT = 1531))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = SYBO3.ORASRV.COM)
    )
  )

AUX =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.7.26)(PORT = 1531))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = SYBO3.ORASRV.COM)
    )
  )

--Target Server
[oracle@linux3 ~]$ more /u01/oracle/db_1/network/admin/listener.ora 
# listener.ora Network Configuration File: /u01/oracle/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER_SYBO3 =
  (SID_LIST =
    (SID_DESC =
      (GLOBAL_DBNAME = sybo3.orasrv.com)
      (ORACLE_HOME = /u01/oracle/db_1)
      (SID_NAME = sybo3)
    )
  )

LISTENER_SYBO3 =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = linux3.orasrv.com)(PORT = 1531))
  )

ADR_BASE_LISTENER_SYBO3 = /u01/oracle

[oracle@linux3 ~]$ more /u01/oracle/db_1/network/admin/tnsnames.ora 
# tnsnames.ora Network Configuration File: /u01/oracle/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
# 注，在Target Server與Auxiliary Server的tnames.ora文件中，使用了相同的entry，即同時存在TAR與AUX
TAR =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.7.25)(PORT = 1531))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = SYBO3.ORASRV.COM)
    )
  )

AUX =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.7.26)(PORT = 1531))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = SYBO3.ORASRV.COM)
    )
  )

--使用下面的命令確保可以Ping通
[oracle@linux3 admin]$ tnsping TAR  
[oracle@linux3 admin]$ tnsping AUX    
[oracle@linux4 admin]$ tnsping TAR  
[oracle@linux4 admin]$ tnsping AUX


e、實施數據庫克隆
[oracle@linux4 ~]$ export ORACLE_SID=sybo3
[oracle@linux4 ~]$ sqlplus / as sysdba
SQL> startup nomount;
SQL> exit
[oracle@linux4 ~]$ rman target sys/oracle@TAR auxiliary sys/oracle@AUX

Recovery Manager: Release 11.2.0.1.0 - Production on Fri Aug 2 11:44:09 2013

Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.

connected to target database: SYBO3 (DBID=2347733014)
connected to auxiliary database: SYBO3 (not mounted)

RMAN> duplicate database to sybo3 from active database spfile nofilenamecheck; --->發佈duplicate命令

Starting Duplicate Db at 02-AUG-13
using target database control file instead of recovery catalog
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=134 device type=DISK

contents of Memory Script:
{
   backup as copy reuse                                 --->該命令塊備份服務器參數文件並修改spfile參數
   targetfile  '/u01/oracle/db_1/dbs/spfilesybo3.ora' auxiliary format 
 '/u01/oracle/db_1/dbs/spfilesybo3.ora'   ;
   sql clone "alter system set spfile= ''/u01/oracle/db_1/dbs/spfilesybo3.ora''";
}
executing Memory Script

Starting backup at 02-AUG-13
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=145 device type=DISK
Finished backup at 02-AUG-13

sql statement: alter system set spfile= ''/u01/oracle/db_1/dbs/spfilesybo3.ora''

contents of Memory Script:
{
   sql clone "alter system set  db_name =    --->該命令塊主要是修改db_name，重啓auxliary DB 
 ''SYBO3'' comment=
 ''duplicate'' scope=spfile";
   shutdown clone immediate;
   startup clone nomount;
}
executing Memory Script

sql statement: alter system set  db_name =  ''SYBO3'' comment= ''duplicate'' scope=spfile

Oracle instance shut down

connected to auxiliary database (not started)
Oracle instance started

Total System Global Area     376635392 bytes

Fixed Size                     1336652 bytes
Variable Size                285215412 bytes
Database Buffers              83886080 bytes
Redo Buffers                   6197248 bytes

contents of Memory Script:
{
   sql clone "alter system set  db_name = 
 ''SYBO3'' comment=
 ''Modified by RMAN duplicate'' scope=spfile";
   sql clone "alter system set  db_unique_name = 
 ''SYBO3'' comment=
 ''Modified by RMAN duplicate'' scope=spfile";
   shutdown clone immediate;
   startup clone force nomount           --->該命令塊備份控制文件並恢復控制文件到Auxiliary DB
   backup as copy current controlfile auxiliary format  '/u01/database/sybo3/controlf/control01.ctl';
   restore clone controlfile to  '/u01/database/sybo3/controlf/control02.ctl' from 
 '/u01/database/sybo3/controlf/control01.ctl';
   alter clone database mount;
}
executing Memory Script

sql statement: alter system set  db_name =  ''SYBO3'' comment= ''Modified by RMAN duplicate'' scope=spfile

sql statement: alter system set  db_unique_name =  ''SYBO3'' comment= ''Modified by RMAN duplicate'' scope=spfile

Oracle instance shut down

Oracle instance started

Total System Global Area     376635392 bytes

Fixed Size                     1336652 bytes
Variable Size                285215412 bytes
Database Buffers              83886080 bytes
Redo Buffers                   6197248 bytes

Starting backup at 02-AUG-13
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy   
copying current control file
output file name=/u01/oracle/db_1/dbs/snapcf_sybo3.f tag=TAG20130802T114449 RECID=5 STAMP=822397490
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:01
Finished backup at 02-AUG-13

Starting restore at 02-AUG-13
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=133 device type=DISK

channel ORA_AUX_DISK_1: copied control file copy
Finished restore at 02-AUG-13

database mounted
RMAN-05538: WARNING: implicitly using DB_FILE_NAME_CONVERT    --->這個地方提示隱式使用DB_FILE_NAME_CONVERT參數

contents of Memory Script:
{                                      --->該命令塊用於set newname以及熱備數據文件，使用copy方式
   set newname for datafile  1 to 
 "/u01/database/sybo3/oradata/system01.dbf";
   set newname for datafile  2 to 
 "/u01/database/sybo3/oradata/sysaux01.dbf";
   set newname for datafile  3 to 
 "/u01/database/sybo3/oradata/undotbs01.dbf";
   set newname for datafile  4 to 
 "/u01/database/sybo3/oradata/users01.dbf";
   set newname for datafile  5 to 
 "/u01/database/sybo3/oradata/example01.dbf";
   backup as copy reuse
   datafile  1 auxiliary format 
 "/u01/database/sybo3/oradata/system01.dbf"   datafile 
 2 auxiliary format 
 "/u01/database/sybo3/oradata/sysaux01.dbf"   datafile 
 3 auxiliary format 
 "/u01/database/sybo3/oradata/undotbs01.dbf"   datafile 
 4 auxiliary format 
 "/u01/database/sybo3/oradata/users01.dbf"   datafile 
 5 auxiliary format 
 "/u01/database/sybo3/oradata/example01.dbf"   ;
   sql 'alter system archive log current';
}
executing Memory Script

executing command: SET NEWNAME

executing command: SET NEWNAME

executing command: SET NEWNAME

executing command: SET NEWNAME

executing command: SET NEWNAME

Starting backup at 02-AUG-13
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
input datafile file number=00001 name=/u01/database/sybo3/oradata/system01.dbf
output file name=/u01/database/sybo3/oradata/system01.dbf tag=TAG20130802T114457
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:45
channel ORA_DISK_1: starting datafile copy
input datafile file number=00002 name=/u01/database/sybo3/oradata/sysaux01.dbf
output file name=/u01/database/sybo3/oradata/sysaux01.dbf tag=TAG20130802T114457
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:35
channel ORA_DISK_1: starting datafile copy
input datafile file number=00005 name=/u01/database/sybo3/oradata/example01.dbf
output file name=/u01/database/sybo3/oradata/example01.dbf tag=TAG20130802T114457
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:07
channel ORA_DISK_1: starting datafile copy
input datafile file number=00003 name=/u01/database/sybo3/oradata/undotbs01.dbf
output file name=/u01/database/sybo3/oradata/undotbs01.dbf tag=TAG20130802T114457
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:07
channel ORA_DISK_1: starting datafile copy
input datafile file number=00004 name=/u01/database/sybo3/oradata/users01.dbf
output file name=/u01/database/sybo3/oradata/users01.dbf tag=TAG20130802T114457
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:01
Finished backup at 02-AUG-13

sql statement: alter system archive log current

contents of Memory Script:
{
   backup as copy reuse           --->該命令塊備份歸檔日誌
   archivelog like  "/u01/database/sybo3/fra/SYBO3/archivelog/2013_08_02/o1_mf_1_43_8zpbwsry_.arc" auxiliary format 
 "/u01/database/sybo3/fra/SYBO3/archivelog/2013_08_02/o1_mf_1_43_%u_.arc"   ;
   catalog clone recovery area;   --->並且克隆整個recovery area
   switch clone datafile all;
}
executing Memory Script

Starting backup at 02-AUG-13
using channel ORA_DISK_1
channel ORA_DISK_1: starting archived log copy
input archived log thread=1 sequence=43 RECID=48 STAMP=822397594
output file name=/u01/database/sybo3/fra/SYBO3/archivelog/2013_08_02/o1_mf_1_43_1aog9ikr_.arc RECID=0 STAMP=0
channel ORA_DISK_1: archived log copy complete, elapsed time: 00:00:01
Finished backup at 02-AUG-13

searching for all files in the recovery area

List of Files Unknown to the Database
=====================================
File Name: /u01/database/sybo3/fra/SYBO3/archivelog/2013_08_02/o1_mf_1_43_1aog9ikr_.arc
cataloging files...
cataloging done

List of Cataloged Files   --->這個地方列出了已經傳送到Auxiliary Server的數據文件，以及歸檔日誌
=======================
File Name: /u01/database/sybo3/fra/SYBO3/archivelog/2013_08_02/o1_mf_1_43_1aog9ikr_.arc

datafile 1 switched to datafile copy
input datafile copy RECID=5 STAMP=822397596 file name=/u01/database/sybo3/oradata/system01.dbf
datafile 2 switched to datafile copy
input datafile copy RECID=6 STAMP=822397596 file name=/u01/database/sybo3/oradata/sysaux01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=7 STAMP=822397596 file name=/u01/database/sybo3/oradata/undotbs01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=8 STAMP=822397596 file name=/u01/database/sybo3/oradata/users01.dbf
datafile 5 switched to datafile copy
input datafile copy RECID=9 STAMP=822397596 file name=/u01/database/sybo3/oradata/example01.dbf

contents of Memory Script:
{
   set until scn  1234019;
   recover                  --->這個命令塊開始recover
   clone database
    delete archivelog
   ;
}
executing Memory Script

executing command: SET until clause

Starting recover at 02-AUG-13
using channel ORA_AUX_DISK_1

starting media recovery

archived log for thread 1 with sequence 43 is already on disk as file /u01/database/sybo3/fra/SYBO3/archivelog/
    2013_08_02/o1_mf_1_43_1aog9ikr_.arc
archived log file name=/u01/database/sybo3/fra/SYBO3/archivelog/2013_08_02/o1_mf_1_43_1aog9ikr_.arc thread=1 sequence=43
media recovery complete, elapsed time: 00:00:00
Finished recover at 02-AUG-13

contents of Memory Script:
{
   shutdown clone immediate;
   startup clone nomount;                    --->該命令塊修改參數以及重建控制文件
   sql clone "alter system set  db_name = 
 ''SYBO3'' 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

database dismounted
Oracle instance shut down

connected to auxiliary database (not started)
Oracle instance started

Total System Global Area     376635392 bytes

Fixed Size                     1336652 bytes
Variable Size                285215412 bytes
Database Buffers              83886080 bytes
Redo Buffers                   6197248 bytes

sql statement: alter system set  db_name =  ''SYBO3'' 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     376635392 bytes

Fixed Size                     1336652 bytes
Variable Size                285215412 bytes
Database Buffers              83886080 bytes
Redo Buffers                   6197248 bytes
sql statement: CREATE CONTROLFILE REUSE SET DATABASE "SYBO3" RESETLOGS ARCHIVELOG 
  MAXLOGFILES     16
  MAXLOGMEMBERS      3
  MAXDATAFILES      100
  MAXINSTANCES     8
  MAXLOGHISTORY      292
 LOGFILE
  GROUP  1  SIZE 50 M ,
  GROUP  2  SIZE 50 M ,
  GROUP  3  SIZE 50 M 
 DATAFILE
  '/u01/database/sybo3/oradata/system01.dbf'
 CHARACTER SET AL32UTF8


contents of Memory Script:
{
   set newname for tempfile  1 to              --->將數據文件，臨時文件更新到控制文件
 "/u01/database/sybo3/oradata/temp01.dbf";
   switch clone tempfile all;
   catalog clone datafilecopy  "/u01/database/sybo3/oradata/sysaux01.dbf", 
 "/u01/database/sybo3/oradata/undotbs01.dbf", 
 "/u01/database/sybo3/oradata/users01.dbf", 
 "/u01/database/sybo3/oradata/example01.dbf";
   switch clone datafile all;
}
executing Memory Script

executing command: SET NEWNAME

renamed tempfile 1 to /u01/database/sybo3/oradata/temp01.dbf in control file

cataloged datafile copy
datafile copy file name=/u01/database/sybo3/oradata/sysaux01.dbf RECID=1 STAMP=822397612
cataloged datafile copy
datafile copy file name=/u01/database/sybo3/oradata/undotbs01.dbf RECID=2 STAMP=822397612
cataloged datafile copy
datafile copy file name=/u01/database/sybo3/oradata/users01.dbf RECID=3 STAMP=822397612
cataloged datafile copy
datafile copy file name=/u01/database/sybo3/oradata/example01.dbf RECID=4 STAMP=822397612

datafile 2 switched to datafile copy
input datafile copy RECID=1 STAMP=822397612 file name=/u01/database/sybo3/oradata/sysaux01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=2 STAMP=822397612 file name=/u01/database/sybo3/oradata/undotbs01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=3 STAMP=822397612 file name=/u01/database/sybo3/oradata/users01.dbf
datafile 5 switched to datafile copy
input datafile copy RECID=4 STAMP=822397612 file name=/u01/database/sybo3/oradata/example01.dbf

contents of Memory Script:
{
   Alter clone database open resetlogs;   --->open 數據庫
}
executing Memory Script

database opened
Finished Duplicate Db at 02-AUG-13


f、驗證結果
[oracle@linux4 ~]$ sqlplus / as sysdba

SQL> select * from t;

NAME       ACTION
---------- --------------------
Robinson   Transfer DB
Jackson    Transfer DB by rman

SQL> set linesize 190
SQL> select host_name,instance_name from v$instance;

HOST_NAME                            INSTANCE_NAME
------------------------------------ ----------------
linux4.orasrv.com                    sybo3

五、後記
a、不管使用何種方式進行數據庫克隆，都是使用了基於時間點的不徹底恢復，都須要使用open resetlog方式打開數據庫。
b、從活動數據庫進行克隆時，須要保證Target DB處於歸檔模式。
c、從活動數據庫進行克隆應當保證Target Server與Auxiliary Server 的tnsnames文件中都存在到Target DB與Auxiliary DB的鏈接字符串。
d、能夠在Target Server與Auxiliary Server任意一端發佈duplicate database to newdb from active database進行克隆。
e、從活動數據庫克隆應保證Traget DB與Auxiliary DB具備相同的密碼(位於密碼文件)或者直接從Target Server複製密碼文件到Auxiliary Server。
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相關參考
    RMAN 數據庫克隆文件位置轉換方法數據結構

    基於RMAN的異機數據庫克隆(rman duplicate)oracle

    基於 RMAN 的同機數據庫克隆性能

    基於用戶管理的同機數據庫克隆spa

    RMAN duplicate from active 時遭遇 ORA-17627 ORA-12154

    Oracle 冷備份

    Oracle 熱備份

    Oracle 備份恢復概念

    Oracle 實例恢復

    Oracle 基於用戶管理恢復的處理

    SYSTEM 表空間管理及備份恢復

    SYSAUX表空間管理及恢復

    Oracle 基於備份控制文件的恢復(unsing backup controlfile)

    RMAN 概述及其體系結構

    RMAN 配置、監控與管理

    RMAN 備份詳解

    RMAN 還原與恢復

    RMAN catalog 的建立和使用

    基於catalog 建立RMAN存儲腳本

    基於catalog 的RMAN 備份與恢復

    RMAN 備份路徑困惑

    自定義 RMAN 顯示的日期時間格式

    只讀表空間的備份與恢復

    Oracle 基於用戶管理的不徹底恢復

    理解 using backup controlfile

    使用RMAN實現異機備份恢復(WIN平臺)

    使用RMAN遷移文件系統數據庫到ASM

    基於Linux下 Oracle 備份策略(RMAN)

    Linux 下RMAN備份shell腳本

    使用RMAN遷移數據庫到異機

    RMAN 提示符下執行SQL語句

    Oracle 基於 RMAN 的不徹底恢復(incomplete recovery by RMAN)

    rman 還原歸檔日誌(restore archivelog)

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