異地rman恢復數據庫
ORACLE_BASE=/u01/app/oracle
ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1
ORACLE_SID=ygdg
數據文件位置：/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
數據文件位置：/u01/app/oracle/oradata/ygdg
【1.原庫rman備份】
[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‘<<EOF
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.原庫查看DBID】
export ORACLE_SID=ygdg
rman target=/
連接上之後就可以看得到DBID，記下來
【3.原庫生成pfile】
create pfile=‘/u01/pfileygdg.ora‘ from spfile;
【4.備份文件傳至目標庫】
scp /u01/ygtest/*.bak [email protected]:/u01/ygtest 記得確定目錄權限和所屬者
【5.原庫目標庫結合修改pfile，並將修改後的參數文件傳到目標端】
建議將原庫生成的pfile和目標庫的spfile都下載到本地，根據“參數位置看pfile，其他看spfile”的原則進行修改
【6.目標數據庫創建spfile，並使用spfile啟動數據庫到nomount狀態】
如果上面參數修改沒問題，正常應該是下面這樣：
SQL> startup pfile=‘/software/pfileygdg.ora‘;
SQL> create spfile from pfile=‘/software/pfileygdg.ora‘;
SQL> shutdown immediate;
SQL> startup nomount;
但是有些參數沒註意修改，就會出現ORA-，不用擔心，看到什麽錯改什麽就行，如下：
SQL> startup pfile=‘/software/pfileygdg.ora‘;
ORACLE 例程已經啟動。
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：查看參數文件中compatible值為11.2.0.0.0，與控制文件中的值沖突；
解決：
SQL> create spfile from pfile=‘/software/pfileygdg.ora‘;
文件已創建。
SQL> shutdown immediate;
ORA-01507: ??????
ORACLE 例程已經關閉。
解決：修改spfile文件compatible參數後，使用spfile啟動
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‘
解決此問題的方法就是到cd /u01/app/oracle/admin/ygdg/pfile/目錄下，將init.ora.25201817331
復制到dbs目錄下：
cp init.ora.25201817331 /u01/app/oracle/product/11.2.0/db_1/dbs/initygdg.ora
SQL> startup nomount;
ORACLE 例程已經啟動。
Total System Global Area 830930944 bytes
Fixed Size 2257800 bytes
Variable Size 536874104 bytes
Database Buffers 285212672 bytes
Redo Buffers 6586368 bytes
SQL> exit
從 Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options 斷開
【7.還原控制文件】
[oracle@localhost database]$ rman target=/
恢復管理器: 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.
已連接到目標數據庫: YGDG (未裝載)
RMAN> set dbid=2428115541
RMAN> restore controlfile from ‘/software/ygtest/CTL_YGDG_55_1_969977274.bak‘;
RMAN> alter database mount;
【8.指定備份文件所在目錄】
RMAN> catalog start with ‘/software/ygtest‘;
【9.還原與恢復數據庫】
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
註：1.原庫執行
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";
已選擇6行。
SQL>
SELECT ‘SQL "ALTER DATABASE RENAME FILE ‘‘‘‘‘ || a.MEMBER || ‘‘‘‘‘ to ‘‘‘‘‘ || a.MEMBER || ‘‘‘‘‘ ";‘ FROM v$logfile a;
SQL "ALTER DATABASE RENAME FILE ‘‘/u01/app/oracle/oradata/ygdg/redo01a.log‘‘ to
‘‘/u01/app/oracle/oradata/ygdg/redo01a.log‘‘ ";
SQL "ALTER DATABASE RENAME FILE ‘‘/u01/app/oracle/oradata/ygdg/redo02a.log‘‘ to
‘‘/u01/app/oracle/oradata/ygdg/redo02a.log‘‘ ";
2.使用newnam for datafile來實現修改不同的文件路徑
3.switch datafile all用來更新還原回來的controlfile中的數據文件路徑與聯機日誌文件路徑，要不然recover時會報錯RMAN-06094
[oracle@localhost database]$ sqlplus / as sysdba
SQL> select status from v$instance;
STATUS
MOUNTED
SQL> alter database open resetlogs;
數據庫已更改。
異地rman恢復數據庫