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Source db端:
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ORACLE_BASE=/u01/app/oracle
ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1
ORACLE_SID=ygdg
数据文件位置:/u01/app/oracle/oradata/ygdg
Target db端:
ORACLE_BASE=/u01/app/oracle
ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1
ORACLE_SID=ygdg
数据文件位置:/u01/app/oracle/oradata/ygdg
【1.原库rman备份】
[oracle@oraclelinux rman]$ cat rman_for_dg.sh
export ORACLE_SID=ygdg
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1
export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK
rman target=/ log='/u01/ygtest/fullbackup.log'< crosscheck archivelog all; run { allocate channel t1 type disk; allocate channel t2 type disk; allocate channel t3 type disk; allocate channel t4 type disk; backup as compressed backupset database format '/u01/ygtest/DB%d%s%p%t.bak' TAG='WHOLE BACKUP' section size 30G plus archivelog format '/u01/ygtest/ARC%d%s%p%t.bak' TAG='ARC BACKUP' delete input; backup current controlfile format '/u01/ygtest/CTL%d%s%p%t.bak' TAG='CTL BACKUP'; release channel t1; release channel t2; release channel t3; release channel t4; } crosscheck backup; delete noprompt obsolete recovery window of 3 days; EOF 【2.原库查看DBID】 export ORACLE_SID=ygdg rman target=/ 连接上之后就可以看得到DBID,记下来 【3.原库生成pfile】 create pfile='/u01/pfileygdg.ora' from spfile; 【4.备份文件传至目标库】 scp /u01/ygtest/*.bak oracle@10.1.1.11:/u01/ygtest 记得确定目录权限和所属者 【5.原库目标库结合修改pfile,并将修改后的参数文件传到目标端】 建议将原库生成的pfile和目标库的spfile都下载到本地,根据“参数位置看pfile,其他看spfile”的原则进行修改 【6.目标数据库创建spfile,并使用spfile启动数据库到nomount状态】 如果上面参数修改没问题,正常应该是下面这样: SQL> startup pfile='/software/pfileygdg.ora'; SQL> create spfile from pfile='/software/pfileygdg.ora'; SQL> shutdown immediate; SQL> startup nomount; 但是有些参数没注意修改,就会出现ORA-,不用担心,看到什么错改什么就行,如下: SQL> startup pfile='/software/pfileygdg.ora'; ORACLE 例程已经启动。 Total System Global Area 221331456 bytes Fixed Size 2251856 bytes Variable Size 163578800 bytes Database Buffers 50331648 bytes Redo Buffers 5169152 bytes ORA-00201: control file version 11.2.0.4.0 incompatible with ORACLE version 11.2.0.0.0 ORA-00202: control file: '/u01/app/oracle/oradata/ygdg/control01.ctl' 分析:查看参数文件中compatible值为11.2.0.0.0,与控制文件中的值冲突; 解决: SQL> create spfile from pfile='/software/pfileygdg.ora'; 文件已创建。 SQL> shutdown immediate; ORA-01507: ?????? ORACLE 例程已经关闭。 解决:修改spfile文件compatible参数后,使用spfile启动 SQL> startup nomount; ORA-01078: failure in processing system parameters LRM-00109: could not open parameter file '/u01/app/oracle/product/11.2.0/db_1/dbs/initygdg.ora' 解决此问题的方法就是到cd /u01/app/oracle/admin/ygdg/pfile/目录下,将init.ora.25201817331 复制到dbs目录下: cp init.ora.25201817331 /u01/app/oracle/product/11.2.0/db_1/dbs/initygdg.ora SQL> startup nomount; ORACLE 例程已经启动。 Total System Global Area 830930944 bytes Fixed Size 2257800 bytes Variable Size 536874104 bytes Database Buffers 285212672 bytes Redo Buffers 6586368 bytes SQL> exit 从 Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options 断开 【7.还原控制文件】 [oracle@localhost database]$ rman target=/ 恢复管理器: Release 11.2.0.4.0 - Production on 星期一 3月 5 19:20:26 2018 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. 已连接到目标数据库: YGDG (未装载) RMAN> set dbid=2428115541 RMAN> restore controlfile from '/software/ygtest/CTL_YGDG_55_1_969977274.bak'; RMAN> alter database mount; 【8.指定备份文件所在目录】 RMAN> catalog start with '/software/ygtest'; 【9.还原与恢复数据库】 RMAN> run{ set newname for datafile 1 to "/u01/app/oracle/oradata/ygdg/system01.dbf"; set newname for datafile 2 to "/u01/app/oracle/oradata/ygdg/sysaux01.dbf"; set newname for datafile 3 to "/u01/app/oracle/oradata/ygdg/undotbs01.dbf"; set newname for datafile 4 to "/u01/app/oracle/oradata/ygdg/users01.dbf"; set newname for datafile 5 to "/u01/app/oracle/oradata/ygdg/test01.dbf"; set newname for tempfile 1 to "/u01/app/oracle/oradata/ygdg/temp01.dbf"; SQL "ALTER DATABASE RENAME FILE ''/u01/app/oracle/oradata/ygdg/redo01a.log'' to ''/u01/app/oracle/oradata/ygdg/redo01a.log'' "; SQL "ALTER DATABASE RENAME FILE ''/u01/app/oracle/oradata/ygdg/redo02a.log'' to ''/u01/app/oracle/oradata/ygdg/redo02a.log'' "; } RMAN> run{ restore database; SWITCH DATAFILE ALL; recover database; } # update control file with new filenames 注:1.原库执行 SQL> select 'set newname for datafile ' || a.FILE# || ' to "' || a.NAME || '";' from v$datafile a union all select 'set newname for tempfile ' || a.FILE# || ' to "' || a.NAME || '";' from v$tempfile a; 'SETNEWNAMEFORDATAFILE'||A.FILE#||'TO"'||A.NAME||'";' set newname for datafile 1 to "/u01/app/oracle/oradata/ygdg/system01.dbf"; set newname for datafile 2 to "/u01/app/oracle/oradata/ygdg/sysaux01.dbf"; set newname for datafile 3 to "/u01/app/oracle/oradata/ygdg/undotbs01.dbf"; set newname for datafile 4 to "/u01/app/oracle/oradata/ygdg/users01.dbf"; set newname for datafile 5 to "/u01/app/oracle/oradata/ygdg/test01.dbf"; set newname for tempfile 1 to "/u01/app/oracle/oradata/ygdg/temp01.dbf"; 已选择6行。 SQL> SELECT 'SQL "ALTER DATABASE RENAME FILE ''''' || a.MEMBER || ''''' to ''''' || a.MEMBER || ''''' ";' FROM v$logfile a; SQL "ALTER DATABASE RENAME FILE ''/u01/app/oracle/oradata/ygdg/redo01a.log'' to ''/u01/app/oracle/oradata/ygdg/redo01a.log'' "; SQL "ALTER DATABASE RENAME FILE ''/u01/app/oracle/oradata/ygdg/redo02a.log'' to ''/u01/app/oracle/oradata/ygdg/redo02a.log'' "; 2.使用newnam for datafile来实现修改不同的文件路径 3.switch datafile all用来更新还原回来的controlfile中的数据文件路径与联机日志文件路径,要不然recover时会报错RMAN-06094 [oracle@localhost database]$ sqlplus / as sysdba SQL> select status from v$instance; STATUS MOUNTED SQL> alter database open resetlogs; 数据库已更改。
网站标题:异地rman恢复数据库
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