【执行灾难性恢复-1】
执行灾难恢复: [oracle@oracle ~]$ sqlplus / as sysdbaSQL*Plus: Release 10.2.0.5.0 - Production on Thu Nov 6 20:23:30 2014Copyright (c) 1982, 2010, Oracle. All Rights Reserved.Connected to:Oracle Database 10g Enterprise Edition Release 10.2.
执行灾难恢复:[oracle@oracle ~]$ sqlplus / as sysdba SQL*Plus: Release 10.2.0.5.0 - Production on Thu Nov 6 20:23:30 2014 Copyright (c) 1982, 2010, Oracle. All Rights Reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production With the Partitioning, Oracle Label Security, OLAP, Data Mining Scoring Engine and Real Application Testing options SQL> shutdown abort ORACLE instance shut down. SQL> exit Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production With the Partitioning, Oracle Label Security, OLAP, Data Mining Scoring Engine and Real Application Testing options [oracle@oracle ~]$ rm /u01/oracle/oradata/jadl10g/ -rf [oracle@oracle ~]$ rm /u01/oracle/admin/jadl10g/ -rf [oracle@oracle ~]$ rm /u01/oracle/flash_recovery_area/jadl10g/ -rf [oracle@oracle ~]$ ls /u01/oracle/10g/dbs/ ab_+ASM.dat hc_jadl10g.dat init.ora orapw+ASM snapcf_jadl10g.f alert_jadl10g.log initd10g.ora lk+ASM orapwd10g spfile+ASM.ora hc_+ASM.dat initdw.ora lkJADL10G orapwjadl10g spfilejadl10g.ora [oracle@oracle ~]$ rm /u01/oracle/10g/dbs/*jadl10g* -rf ***注意该文件不能删除,如果删除了就不能恢复了*** [oracle@oracle ~]$ ls /u01/oracle/flash_recovery_area/JADL10G/ archivelog backupset datafile onlinelog
故障模拟完毕:开始执行恢复操作;
[oracle@oracle ~]$ rman target / Recovery Manager: Release 10.2.0.5.0 - Production on Thu Nov 6 20:30:19 2014 Copyright (c) 1982, 2007, Oracle. All rights reserved. connected to target database (not started) RMAN> startup nomount startup failed: ORA-01078: failure in processing system parameters LRM-00109: could not open parameter file '/u01/oracle/10g/dbs/initjadl10g.ora' starting Oracle instance without parameter file for retrival of spfile Oracle instance started Total System Global Area 159383552 bytes Fixed Size 2094736 bytes Variable Size 67111280 bytes Database Buffers 83886080 bytes Redo Buffers 6291456 bytes RMAN> restore spfile from '/u01/oracle/flash_recovery_area/JADL10G/backupset/2014_11_06/o1_mf_ncsnf_TAG20141106T202102_b5psyngf_.bkp'; Starting restore at 06-NOV-14 using target database control file instead of recovery catalog allocated channel: ORA_DISK_1 channel ORA_DISK_1: sid=36 devtype=DISK channel ORA_DISK_1: autobackup found: /u01/oracle/flash_recovery_area/JADL10G/backupset/2014_11_06/o1_mf_ncsnf_TAG20141106T202102_b5psyngf_.bkp channel ORA_DISK_1: SPFILE restore from autobackup complete Finished restore at 06-NOV-14 RMAN> shutdown abort; Oracle instance shut down RMAN> exit Recovery Manager complete. [oracle@oracle ~]$ strings $ORACLE_HOME/dbs/spfilejadl10g.ora jadl10g.__db_cache_size=427819008 jadl10g.__java_pool_size=4194304 jadl10g.__large_pool_size=4194304 jadl10g.__shared_pool_size=155189248 jadl10g.__streams_pool_size=0 *.audit_file_dest='/u01/oracle/admin/jadl10g/adump' *.background_dump_dest='/u01/oracle/admin/jadl10g/bdump' *.compatible='10.2.0.5.0' *.control_files='/u01/oracle/oradata/jadl10g/control01.ctl','/u01/oracle/flash_recovery_area/jadl10g/control02.ctl'#Restore Controlfile *.core_dump_dest='/u01/oracle/admin/jadl10g/cdump' *.db_block_size=8192 *.db_domain='' *.db_file_multiblock_read_count=16 *.db_name='jadl10g' *.db_recovery_file_dest='/u01/oracle/flash_recovery_area' *.db_recovery_file_dest_size=2147483648 *.dispatchers='(PROTOCOL=TCP) (SERVICE=jadl10gXDB)' *.job_queue_processes=10 *.log_archive_format='%t_%s_%r.dbf' *.open_cursors=300 *.pga_aggregate_target=199229440 *.processes=150 *.remote_login_passwordfile='EXCLUSIVE' *.sga_target=597688320 *.undo_management='AUTO' *.undo_tablespace='UNDOTBS1' *.user_dump_dest='/u01/oracle/admin/jadl10g/udump' [oracle@oracle ~]$ mkdir /u01/oracle/admin/jadl10g/{a,b,c,u}dump -p [oracle@oracle ~]$ mkdir /u01/oracle/oradata/jadl10g [oracle@oracle ~]$ mkdir /u01/oracle/flash_recovery_area/jadl10g [oracle@oracle ~]$ rman target / Recovery Manager: Release 10.2.0.5.0 - Production on Thu Nov 6 20:35:03 2014 Copyright (c) 1982, 2007, Oracle. All rights reserved. connected to target database (not started) RMAN> startup nomount connected to target database (not started) Oracle instance started Total System Global Area 599785472 bytes Fixed Size 2098112 bytes Variable Size 163580992 bytes Database Buffers 427819008 bytes Redo Buffers 6287360 bytes RMAN> restore controlfile from '/u01/oracle/flash_recovery_area/JADL10G/backupset/2014_11_06/o1_mf_ncsnf_TAG20141106T202102_b5psyngf_.bkp'; Starting restore at 06-NOV-14 using channel ORA_DISK_1 channel ORA_DISK_1: restoring control file channel ORA_DISK_1: restore complete, elapsed time: 00:00:03 output filename=/u01/oracle/oradata/jadl10g/control01.ctl output filename=/u01/oracle/flash_recovery_area/jadl10g/control02.ctl Finished restore at 06-NOV-14 RMAN> alter database mount; database mounted released channel: ORA_DISK_1 RMAN> restore database; Starting restore at 06-NOV-14 Starting implicit crosscheck backup at 06-NOV-14 allocated channel: ORA_DISK_1 channel ORA_DISK_1: sid=156 devtype=DISK Crosschecked 1 objects Finished implicit crosscheck backup at 06-NOV-14 Starting implicit crosscheck copy at 06-NOV-14 using channel ORA_DISK_1 Crosschecked 1 objects Finished implicit crosscheck copy at 06-NOV-14 searching for all files in the recovery area cataloging files... cataloging done List of Cataloged Files ======================= File Name: /u01/oracle/flash_recovery_area/JADL10G/backupset/2014_11_06/o1_mf_ncsnf_TAG20141106T202102_b5psyngf_.bkp 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/oracle/oradata/jadl10g/system01.dbf restoring datafile 00002 to /u01/oracle/oradata/jadl10g/undotbs01.dbf restoring datafile 00003 to /u01/oracle/oradata/jadl10g/sysaux01.dbf restoring datafile 00004 to /u01/oracle/oradata/jadl10g/users01.dbf restoring datafile 00005 to /u01/oracle/oradata/jadl10g/example01.dbf channel ORA_DISK_1: reading from backup piece /u01/oracle/flash_recovery_area/JADL10G/backupset/2014_11_06/o1_mf_nnndf_TAG20141106T202102_b5psxhko_.bkp channel ORA_DISK_1: restored backup piece 1 piece handle=/u01/oracle/flash_recovery_area/JADL10G/backupset/2014_11_06/o1_mf_nnndf_TAG20141106T202102_b5psxhko_.bkp tag=TAG20141106T202102 channel ORA_DISK_1: restore complete, elapsed time: 00:00:35 Finished restore at 06-NOV-14 RMAN> recover database; Starting recover at 06-NOV-14 using channel ORA_DISK_1 starting media recovery unable to find archive log archive log thread=1 sequence=1 RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-03002: failure of recover command at 11/06/2014 20:39:55 RMAN-06054: media recovery requesting unknown log: thread 1 seq 1 lowscn 485958 RMAN> recover database until scn 485958; Starting recover at 06-NOV-14 using channel ORA_DISK_1 starting media recovery unable to find archive log archive log thre【本文来自鸿网互联 (http://www.68idc.cn)】ad=1 sequence=1 RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-03002: failure of recover command at 11/06/2014 20:40:17 RMAN-06054: media recovery requesting unknown log: thread 1 seq 1 lowscn 485958 RMAN> recover database noredo; Starting recover at 06-NOV-14 using channel ORA_DISK_1 Finished recover at 06-NOV-14 RMAN> alter database open resetlogs; database opened RMAN> exit Recovery Manager complete. [oracle@oracle ~]$ sqlplus / as sysdba SQL*Plus: Release 10.2.0.5.0 - Production on Thu Nov 6 20:47:03 2014 Copyright (c) 1982, 2010, Oracle. All Rights Reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production With the Partitioning, Oracle Label Security, OLAP, Data Mining Scoring Engine and Real Application Testing options SQL> select name from v$datafile; NAME -------------------------------------------------------------------------------- /u01/oracle/oradata/jadl10g/system01.dbf /u01/oracle/oradata/jadl10g/undotbs01.dbf /u01/oracle/oradata/jadl10g/sysaux01.dbf /u01/oracle/oradata/jadl10g/users01.dbf /u01/oracle/oradata/jadl10g/example01.dbf
备份文件 不用删除 在备份设备上保留冗余备份
归档日志 不要删除 在备份设备上保留归档日志
日志文件一定要分开放,不要造成日志文件组成员全部丢失
数据文件丢失有故障,是可以恢复的
使用重建控制文件,备份控制文件恢复,resetlogs打开数据库都需要重新备份backup database;

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