rman恢复

Posted 2021-02-03 orcl-2018

1) Loss of system DATAFILE

2) Loss of non-system DATAFILE

3) Loss of a DATAFILE without Backup

4) Loss of a CONTROLFILE

5) Loss of all the CONTROLFILE

6) Loss of REDOLOGs

7) Loss of CONTROLFILE, SPFILE, DATAFILEs and REDOLOGs

8) Loss of Tempfile

9) Block corruption of datafiles

1) Loss of system DATAFILE

rm -rf /u01/app/oracle/oradata/PROD1/system01.dbf

$rman target /

rman>validate database;

rman>shutdown abort

rman>startup mount

rman>restore datafile 1;

rman>recover datailfe 1;

rman>alter database open;

rman>validate database;

 

2) Loss of non-system DATAFILE

$rman target /

rman>validate database;

rman>list failure;

rman>advise failure;

rman>repair failure preview;

rman>repair failure;

rman>validate database;

 

3) Loss of a DATAFILE without Backup

$rman target /

rman>validate database;

rman>list failure;

rman>advise failure;

rman>repair failure preview;

rman>repair failure;

rman>validate database;

 

4) Loss of a CONTROLFILE

rm -rf /u01/app/oracle/oradata/PROD1/control01.ctl

sql>shutdown immediate

cp -r /u01/app/oracle/fast_recovery_area/PROD1/control02.ctl /u01/app/oracle/oradata/PROD1/control01.ctl 

sql>startup nomount

sql>alter system set control_files=‘/u01/app/oracle/oradata/PROD1/control01.ctl‘,‘/u01/app/oracle/fast_recovery_area/PROD1/control02.ctl‘ scope=spfile;

sql>startup force

sql>select name from v$instance;

 

5) Loss of all the CONTROLFILE

rm /u01/app/oracle/oradata/PROD1/control01.ctl

rm /u01/app/oracle/fast_recovery_area/PROD1/control02.ctl

sql>select dbid from v$database;

sql>shutdown abort

$rman target /

rman>set dbid=*******

rman>restore controlfile from autobackup;

sql>alter database mount;

rman>restore database;

rman>recover database;

sql>alter database open resetlogs;

 

6) Loss of REDOLOGs

shutdown immediate;

startup

sqlplus / as sysdba
startup mount;

-- Clear all the redo logfiles
alter database clear unarchived logfile group 1;
alter database clear unarchived logfile group 2;
alter database clear unarchived logfile gorup 3;
alter database open;

 

7) Loss of CONTROLFILE, SPFILE, DATAFILEs and REDOLOGs

8) Loss of Tempfile

sql>shutdown immediate

sql>startup

oracle 11g丢失临时表空间文件，重启后会自动创建临时表空间文件

 

9) Block corruption of datafiles

$rman target / catalog rman/[email protected]
RMAN> list failure;
RMAN> advise failure;
RMAN> repair failure;
-- Check the result
RMAN> list failure all;