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  • RMAN学习之七:异机恢复。

    1、两台机器环境一致。

    2、在源服务器上使用rman备份数据库,包括数据文件,归档日志文件和控制文件,参数文件的备份。

    RMAN> run {   
    2> allocate channel c1 device type disk;  
    3> backup incremental level 0    
    4> format '/u01/dbbackup/db_full_%U.bkp'   
    5> tag '2011-11-17-FULL'  
    6> database plus archivelog;  
    7> release channel c1;  
    8> }  
    
    using target database control file instead of recovery catalog
    allocated channel: c1
    channel c1: sid=142 devtype=DISK
    
    Starting backup at 2012-11-17 12:07:52
    current log archived
    channel c1: starting archive log backupset
    channel c1: specifying archive log(s) in backup set
    input archive log thread=1 sequence=3 recid=1 stamp=799589280
    channel c1: starting piece 1 at 2012-11-17 12:08:03
    channel c1: finished piece 1 at 2012-11-17 12:08:58
    piece handle=/u01/dbbackup/db_full_01nqhgt2_1_1.bkp tag=2011-11-17-FULL comment=NONE
    channel c1: backup set complete, elapsed time: 00:00:57
    Finished backup at 2012-11-17 12:08:59
    
    Starting backup at 2012-11-17 12:09:04
    channel c1: starting incremental level 0 datafile backupset
    channel c1: specifying datafile(s) in backupset
    input datafile fno=00001 name=/u01/app/oracle/oradata/orcl/system01.dbf
    input datafile fno=00003 name=/u01/app/oracle/oradata/orcl/sysaux01.dbf
    input datafile fno=00005 name=/u01/app/oracle/oradata/orcl/example01.dbf
    input datafile fno=00002 name=/u01/app/oracle/oradata/orcl/undotbs01.dbf
    input datafile fno=00004 name=/u01/app/oracle/oradata/orcl/users01.dbf
    channel c1: starting piece 1 at 2012-11-17 12:09:04
    channel c1: finished piece 1 at 2012-11-17 12:23:44
    piece handle=/u01/dbbackup/db_full_02nqhgv0_1_1.bkp tag=2011-11-17-FULL comment=NONE
    channel c1: backup set complete, elapsed time: 00:14:40
    Finished backup at 2012-11-17 12:23:44
    
    Starting backup at 2012-11-17 12:23:44
    current log archived
    channel c1: starting archive log backupset
    channel c1: specifying archive log(s) in backup set
    input archive log thread=1 sequence=4 recid=2 stamp=799590225
    channel c1: starting piece 1 at 2012-11-17 12:23:49
    channel c1: finished piece 1 at 2012-11-17 12:23:50
    piece handle=/u01/dbbackup/db_full_03nqhhqh_1_1.bkp tag=2011-11-17-FULL comment=NONE
    channel c1: backup set complete, elapsed time: 00:00:05
    Finished backup at 2012-11-17 12:23:50
    
    Starting Control File and SPFILE Autobackup at 2012-11-17 12:23:50
    piece handle=/u01/app/oracle/flash_recovery_area/ORCL/autobackup/2012_11_17/o1_mf_s_799590231_8bg4bsfl_.bkp comment=NONE
    Finished Control File and SPFILE Autobackup at 2012-11-17 12:23:57
    
    released channel: c1
    RMAN> backup current controlfile format '/u01/dbbackup/control20121117.bak'; 
    
    Starting backup at 2012-11-17 14:32:38
    allocated channel: ORA_DISK_1
    channel ORA_DISK_1: sid=144 devtype=DISK
    channel ORA_DISK_1: starting full datafile backupset
    channel ORA_DISK_1: specifying datafile(s) in backupset
    including current control file in backupset
    channel ORA_DISK_1: starting piece 1 at 2012-11-17 14:32:43
    channel ORA_DISK_1: finished piece 1 at 2012-11-17 14:32:46
    piece handle=/u01/dbbackup/control20121117.bak tag=TAG20121117T143239 comment=NONE
    channel ORA_DISK_1: backup set complete, elapsed time: 00:00:07
    Finished backup at 2012-11-17 14:32:46
    
    Starting Control File and SPFILE Autobackup at 2012-11-17 14:32:46
    piece handle=/u01/app/oracle/flash_recovery_area/ORCL/autobackup/2012_11_17/o1_mf_s_799597966_8bgcwh2d_.bkp comment=NONE
    Finished Control File and SPFILE Autobackup at 2012-11-17 14:32:49
    RMAN> backup spfile format '/u01/dbbackup/spfile20121117.bak'; 
    
    Starting backup at 2012-11-17 14:33:32
    using channel ORA_DISK_1
    channel ORA_DISK_1: starting full datafile backupset
    channel ORA_DISK_1: specifying datafile(s) in backupset
    including current SPFILE in backupset
    channel ORA_DISK_1: starting piece 1 at 2012-11-17 14:33:32
    channel ORA_DISK_1: finished piece 1 at 2012-11-17 14:33:33
    piece handle=/u01/dbbackup/spfile20121117.bak tag=TAG20121117T143332 comment=NONE
    channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
    Finished backup at 2012-11-17 14:33:33
    
    Starting Control File and SPFILE Autobackup at 2012-11-17 14:33:33
    piece handle=/u01/app/oracle/flash_recovery_area/ORCL/autobackup/2012_11_17/o1_mf_s_799598013_8bgcxy20_.bkp comment=NONE
    Finished Control File and SPFILE Autobackup at 2012-11-17 14:33:41

     3、拷贝备份文件到目标服务器上。

    [oracle@edrsr9p1 ~]$ scp -rp 192.168.253.10:/u01/dbbackup/* /u01/dbbackup/    
    oracle@192.168.253.10's password:   
    control20121117.bak                          100% 6944KB   6.8MB/s   00:01      
    db_full_01nqhgt2_1_1.bkp                     100%   46MB   2.9MB/s   00:16      
    db_full_02nqhgv0_1_1.bkp                     100%  599MB 592.2KB/s   17:15      
    db_full_03nqhhqh_1_1.bkp                     100%   91KB  90.5KB/s   00:00      
    spfile20121117.bak                           100%   96KB  96.0KB/s   00:00    
    

    4、目标服务器上恢复。

    RMAN> restore spfile to '/u01/dbbackup/spfileorcl.ora' from '/u01/dbbackup/spfile20121117.bak';
    
    Starting restore at 2012-11-17 15:19:19
    using target database control file instead of recovery catalog
    allocated channel: ORA_DISK_1
    channel ORA_DISK_1: sid=159 devtype=DISK
    
    channel ORA_DISK_1: autobackup found: /u01/dbbackup/spfile20121117.bak
    channel ORA_DISK_1: SPFILE restore from autobackup complete
    Finished restore at 2012-11-17 15:19:21
    RMAN> restore controlfile from '/u01/dbbackup/control20121117.bak';
    
    Starting restore at 2012-11-17 15:21:35
    using target database control file instead of recovery catalog
    allocated channel: ORA_DISK_1
    channel ORA_DISK_1: sid=156 devtype=DISK
    
    channel ORA_DISK_1: restoring control file
    channel ORA_DISK_1: restore complete, elapsed time: 00:00:05
    output filename=/u01/app/oracle/oradata/orcl/control01.ctl
    output filename=/u01/app/oracle/oradata/orcl/control02.ctl
    output filename=/u01/app/oracle/oradata/orcl/control03.ctl
    Finished restore at 2012-11-17 15:21:40
    RMAN> restore database; 
    
    Starting restore at 2012-11-17 15:22:42
    Starting implicit crosscheck backup at 2012-11-17 15:22:42
    allocated channel: ORA_DISK_1
    channel ORA_DISK_1: sid=153 devtype=DISK
    Crosschecked 4 objects
    Finished implicit crosscheck backup at 2012-11-17 15:22:46
    
    Starting implicit crosscheck copy at 2012-11-17 15:22:46
    using channel ORA_DISK_1
    Finished implicit crosscheck copy at 2012-11-17 15:22:46
    
    searching for all files in the recovery area
    cataloging files...
    no files cataloged
    
    using channel ORA_DISK_1
    
    channel ORA_DISK_1: starting datafile backupset restore
    channel ORA_DISK_1: specifying datafile(s) to restore from backup set
    restoring datafile 00001 to /u01/app/oracle/oradata/orcl/system01.dbf
    restoring datafile 00002 to /u01/app/oracle/oradata/orcl/undotbs01.dbf
    restoring datafile 00003 to /u01/app/oracle/oradata/orcl/sysaux01.dbf
    restoring datafile 00004 to /u01/app/oracle/oradata/orcl/users01.dbf
    restoring datafile 00005 to /u01/app/oracle/oradata/orcl/example01.dbf
    channel ORA_DISK_1: reading from backup piece /u01/dbbackup/db_full_02nqhgv0_1_1.bkp
    channel ORA_DISK_1: restored backup piece 1
    piece handle=/u01/dbbackup/db_full_02nqhgv0_1_1.bkp tag=2011-11-17-FULL
    channel ORA_DISK_1: restore complete, elapsed time: 00:05:22
    Finished restore at 2012-11-17 15:28:10
    RMAN> recover database;
    
    Starting recover at 2012-11-17 15:35:19
    using channel ORA_DISK_1
    
    starting media recovery
    
    channel ORA_DISK_1: starting archive log restore to default destination
    channel ORA_DISK_1: restoring archive log
    archive log thread=1 sequence=4
    channel ORA_DISK_1: reading from backup piece /u01/dbbackup/db_full_03nqhhqh_1_1.bkp
    channel ORA_DISK_1: restored backup piece 1
    piece handle=/u01/dbbackup/db_full_03nqhhqh_1_1.bkp tag=2011-11-17-FULL
    channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
    archive log filename=/u01/app/oracle/flash_recovery_area/ORCL/archivelog/2012_11_17/o1_mf_1_4_8bghkr36_.arc thread=1 sequence=4
    channel default: deleting archive log(s)
    archive log filename=/u01/app/oracle/flash_recovery_area/ORCL/archivelog/2012_11_17/o1_mf_1_4_8bghkr36_.arc recid=3 stamp=799601720
    unable to find archive log
    archive log thread=1 sequence=5
    RMAN-00571: ===========================================================
    RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
    RMAN-00571: ===========================================================
    RMAN-03002: failure of recover command at 11/17/2012 15:35:24
    RMAN-06054: media recovery requesting unknown log: thread 1 seq 5 lowscn 500144 
    SQL> alter database open resetlogs;  
    
    Database altered.

    5、检查。

    SQL> select member from v$logfile;
    
    MEMBER
    --------------------------------------------------------------------------------
    /u01/app/oracle/oradata/orcl/redo03.log
    /u01/app/oracle/oradata/orcl/redo02.log
    /u01/app/oracle/oradata/orcl/redo01.log
    
    SQL> select file_name from dba_data_files;  
    
    FILE_NAME
    --------------------------------------------------------------------------------
    /u01/app/oracle/oradata/orcl/users01.dbf
    /u01/app/oracle/oradata/orcl/sysaux01.dbf
    /u01/app/oracle/oradata/orcl/undotbs01.dbf
    /u01/app/oracle/oradata/orcl/system01.dbf
    /u01/app/oracle/oradata/orcl/example01.dbf
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  • 原文地址:https://www.cnblogs.com/guarder/p/3472043.html
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