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| -- 作者：wangxinxin -- 發布時間：2010-12-11 11:08:29 -- Oracle備份恢復之利用dbms_backup_restore恢復數據庫 引用
RMAN> run { 2> allocate channel ch00 device type disk; 3> backup database include current controlfile format \'/backup/full%t\' tag=\'FULLDB\'; 4> sql \'alter system archive log current\'; 5> backup archivelog all format \'/backup/arch%t\' tag=\'ARCHIVELOG\'; 6> release channel ch00; 7> } allocated channel: ch00 channel ch00: sid=17 devtype=DISK Starting backup at 20-JAN-10 channel ch00: starting full datafile backupset channel ch00: specifying datafile(s) in backupset including current controlfile in backupset input datafile fno=00001 name=/app/oracle/oradata/ora9i/system01.dbf input datafile fno=00002 name=/app/oracle/oradata/ora9i/undotbs01.dbf input datafile fno=00005 name=/app/oracle/oradata/ora9i/example01.dbf input datafile fno=00011 name=/app/oracle/oradata/ora9i/STREAM01.dbf input datafile fno=00010 name=/app/oracle/oradata/ora9i/xdb01.dbf input datafile fno=00006 name=/app/oracle/oradata/ora9i/indx01.dbf input datafile fno=00009 name=/app/oracle/oradata/ora9i/users01.dbf input datafile fno=00003 name=/app/oracle/oradata/ora9i/cwmlite01.dbf input datafile fno=00004 name=/app/oracle/oradata/ora9i/drsys01.dbf input datafile fno=00007 name=/app/oracle/oradata/ora9i/odm01.dbf input datafile fno=00008 name=/app/oracle/oradata/ora9i/tools01.dbf channel ch00: starting piece 1 at 20-JAN-10 channel ch00: finished piece 1 at 20-JAN-10 piece handle=/backup/full708756233 comment=NONE channel ch00: backup set complete, elapsed time: 00:02:26 Finished backup at 20-JAN-10 Starting Control File and SPFILE Autobackup at 20-JAN-10 piece handle=/app/oracle/product/9.0.2/dbs/c-2494723682-20100120-00 comment=NONE Finished Control File and SPFILE Autobackup at 20-JAN-10 sql statement: alter system archive log current Starting backup at 20-JAN-10 current log archived channel ch00: starting archive log backupset channel ch00: specifying archive log(s) in backup set input archive log thread=1 sequence=1 recid=254 stamp=708756150 input archive log thread=1 sequence=2 recid=255 stamp=708756383 input archive log thread=1 sequence=3 recid=256 stamp=708756383 channel ch00: starting piece 1 at 20-JAN-10 channel ch00: finished piece 1 at 20-JAN-10 piece handle=/backup/arch708756383 comment=NONE channel ch00: backup set complete, elapsed time: 00:00:02 Finished backup at 20-JAN-10 Starting Control File and SPFILE Autobackup at 20-JAN-10 piece handle=/app/oracle/product/9.0.2/dbs/c-2494723682-20100120-01 comment=NONE Finished Control File and SPFILE Autobackup at 20-JAN-10 released channel: ch00 假設現在數據庫異常宕機 引用
SQL> shutdown abort ORACLE instance shut down 啟動數據庫至nomount狀態 引用
SQL> startup nomount ORACLE instance started. Total System Global Area 1125193868 bytes Fixed Size 452748 bytes Variable Size 335544320 bytes Database Buffers 788529152 bytes Redo Buffers 667648 bytes 1、利用dbms_backup_restore恢復控制文件 引用
SQL> DECLARE 2 devtype varchar2(256); 3 done boolean; 4 BEGIN 5 devtype := dbms_backup_restore.DeviceAllocate(type => \'\',ident => \'testctl\'); 6 dbms_backup_restore.RestoresetdataFile; 7 dbms_backup_restore.RestoreControlFileto(\'/app/oracle/oradata/ora9i/control01.ctl\'); 8 dbms_backup_restore.RestoreBackupPiece(\'/backup/full708756233\',done => done); 9 dbms_backup_restore.RestoresetdataFile; 10 dbms_backup_restore.RestoreControlFileto(\'/app/oracle/oradata/ora9i/control02.ctl\'); 11 dbms_backup_restore.RestoreBackupPiece(\'/backup/full708756233\',done => done); 12 dbms_backup_restore.RestoresetdataFile; 13 dbms_backup_restore.RestoreControlFileto(\'/app/oracle/oradata/ora9i/control03.ctl\'); 14 dbms_backup_restore.RestoreBackupPiece(\'/backup/full708756233\',done => done); 15 dbms_backup_restore.DeviceDeallocate; 16 END; 17 / PL/SQL procedure successfully completed. 當然也已可用rman進行控制文件恢復 引用
RMAN> restore controlfile from \'/app/oracle/product/9.0.2/dbs/c-2494723682-20100120-00\'; Starting restore at 20-JAN-10 using channel ORA_DISK_1 channel ORA_DISK_1: restoring controlfile channel ORA_DISK_1: restore complete replicating controlfile input filename=/app/oracle/oradata/ora9i/control01.ctl output filename=/app/oracle/oradata/ora9i/control02.ctl output filename=/app/oracle/oradata/ora9i/control03.ctl Finished restore at 20-JAN-10 2、利用dbms_backup_restore恢復數據文件 引用
SQL> DECLARE 2 devtype varchar2(256); 3 done boolean; 4 BEGIN 5 devtype := dbms_backup_restore.DeviceAllocate (type => \'\',ident => \'testdatafile\'); 6 dbms_backup_restore.RestoreSetDatafile; 7 dbms_backup_restore.RestoreDatafileTo(dfnumber => 1,toname => \'/app/oracle/oradata/ora9i/system01.dbf\'); 8 dbms_backup_restore.RestoreDatafileTo(dfnumber => 2,toname => \'/app/oracle/oradata/ora9i/undotbs01.dbf\'); 9 dbms_backup_restore.RestoreBackupPiece(done => done,handle => \'/backup/full708756233\', params => null); 10 dbms_backup_restore.DeviceDeallocate; 11 END; 12 / PL/SQL procedure successfully completed. 3、利用dbms_backup_restore恢復歸檔日志 引用
SQL> DECLARE 2 devtype varchar2(256); 3 done boolean; 4 BEGIN 5 devtype := dbms_backup_restore.DeviceAllocate (type => \'\',ident => \'testarchlog\'); 6 dbms_backup_restore.RestoreSetArchivedLog(destination=>\'/app/oracle/product/9.0.2/dbs/arch\'); 7 dbms_backup_restore.RestoreArchivedLog(thread=>1,sequence=>1); 8 dbms_backup_restore.RestoreArchivedLog(thread=>1,sequence=>2); 9 dbms_backup_restore.RestoreArchivedLog(thread=>1,sequence=>3); 10 dbms_backup_restore.RestoreBackupPiece(done => done,handle => \'/backup/arch708756383\', params => null); 11 dbms_backup_restore.DeviceDeallocate; 12 END; 13 / PL/SQL procedure successfully completed. |