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问题：在数据库损坏的情况下，如果恢复时报RMAN-06026错误应当如何解决? 解答：如果你没有使用catalog，你可以选择dbms_backup_restore来进行恢复。 1、具体的错误信息示例： 你可以发现虽然list backup可以显示备份集，但是已经没有办法再进行恢复了，错误为RMAN-06026，RMAN-06026。 [oracle@jumper oradata]$ rman target /
allocated channel: ORA_DISK_1 channel ORA_DISK_1: sid=11 devtype=DISK RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-03002: failure of restore command at 06/11/2005 01:19:01 RMAN-06026: some targets not found - aborting restore RMAN-06023: no backup or copy of datafile 3 found to restore RMAN-06023: no backup or copy of datafile 2 found to restore RMAN-06023: no backup or copy of datafile 1 found to restore
List of Backup Sets ===================
------- ---- -- ---------- ----------- ------------ --------------- 13 Full 1G DISK 00:03:20 09-JUN-05 BP Key: 13 Status: AVAILABLE Tag: TAG20050609T173346 Piece Name: /opt/oracle/product/9.2.0/dbs/0ggmiabq_1_1 SPFILE Included: Modification time: 08-JUN-05 List of Datafiles in backup set 13 File LV Type Ckp SCN Ckp Time Name ---- -- ---- ---------- --------- ---- 1 Full 240560269 09-JUN-05 /opt/oracle/oradata/conner/system01.dbf 2 Full 240560269 09-JUN-05 /opt/oracle/oradata/conner/undotbs01.dbf 3 Full 240560269 09-JUN-05 /opt/oracle/oradata/conner/users01.dbf
dbms_backup_restore是一个非常强大的package，可以在数据库nomount下使用，用于从备份集中读取各类文件。 本例使用如下脚本: DECLARE devtype varchar2(256); done boolean; BEGIN devtype:=sys.dbms_backup_restore.deviceAllocate (type=>'',ident=>'t1'); sys.dbms_backup_restore.restoreSetDatafile; sys.dbms_backup_restore.restoreDatafileTo(dfnumber=>01,toname=>'/opt/oracle/oradata/conner/system01.dbf'); sys.dbms_backup_restore.restoreDatafileTo(dfnumber=>02,toname=>'/opt/oracle/oradata/conner/undotbs01.dbf'); sys.dbms_backup_restore.restoreDatafileTo(dfnumber=>03,toname=>'/opt/oracle/oradata/conner/users01.dbf'); sys.dbms_backup_restore.restoreBackupPiece(done=>done,handle=>'/opt/oracle/product/9.2.0/dbs/0ggmiabq_1_1', params=>null); sys.dbms_backup_restore.deviceDeallocate; END; /
3、执行恢复的过程 [oracle@jumper conner]$ sqlplus "/ as sysdba"
ORACLE instance started.
Fixed Size 451884 bytes Variable Size 37748736 bytes Database Buffers 62914560 bytes Redo Buffers 667648 bytes
2 devtype varchar2(256); 3 done boolean; 4 BEGIN 5 devtype:=sys.dbms_backup_restore.deviceAllocate (type=>'',ident=>'t1'); 6 sys.dbms_backup_restore.restoreSetDatafile; 7 sys.dbms_backup_restore.restoreDatafileTo(dfnumber=>01,toname=>'/opt/oracle/oradata/conner/system01.dbf'); 8 sys.dbms_backup_restore.restoreDatafileTo(dfnumber=>02,toname=>'/opt/oracle/oradata/conner/undotbs01.dbf'); 9 sys.dbms_backup_restore.restoreDatafileTo(dfnumber=>03,toname=>'/opt/oracle/oradata/conner/users01.dbf'); 10 sys.dbms_backup_restore.restoreBackupPiece(done=>done,handle=>'/opt/oracle/product/9.2.0/dbs/0ggmiabq_1_1',
11 sys.dbms_backup_restore.deviceDeallocate; 12 END; 13 /
注释：从备份集中读取文件完成。 4、恢复控制文件
SQL> alter database mount;
然后找到trace文件，编辑并且执行重建控制文件需要部分:
SQL*Plus: Release 9.2.0.4.0 - Production on Sat Jun 11 01:30:50 2005
Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production With the Partitioning option JServer Release 9.2.0.4.0 - Production
SQL> shutdown immediate; ORA-01109: database not open
Database dismounted. ORACLE instance shut down.
ORACLE instance started.
Fixed Size 451884 bytes Variable Size 37748736 bytes Database Buffers 62914560 bytes Redo Buffers 667648 bytes SQL> set echo on SQL> @ctl SQL> SQL> CREATE CONTROLFILE REUSE DATABASE "CONNER" RESETLOGS ARCHIVELOG 2 -- SET STANDBY TO MAXIMIZE PERFORMANCE 3 MAXLOGFILES 5 4 MAXLOGMEMBERS 3 5 MAXDATAFILES 100 6 MAXINSTANCES 1 7 MAXLOGHISTORY 1361 8 LOGFILE 9 GROUP 1 '/opt/oracle/oradata/conner/redo01.log' SIZE 10M, 10 GROUP 2 '/opt/oracle/oradata/conner/redo02.log' SIZE 10M, 11 GROUP 3 '/opt/oracle/oradata/conner/redo03.log' SIZE 10M 12 -- STANDBY LOGFILE 13 DATAFILE 14 '/opt/oracle/oradata/conner/system01.dbf', 15 '/opt/oracle/oradata/conner/undotbs01.dbf', 16 '/opt/oracle/oradata/conner/users01.dbf' 17 CHARACTER SET ZHS16GBK 18 ;
5、执行恢复步骤 SQL> recover database; ORA-00283: recovery session canceled due to errors ORA-01610: recovery using the BACKUP CONTROLFILE option must be done
SQL> recover database using backup controlfile until cancel; ORA-00279: change 240560269 generated at 06/09/2005 17:33:48 needed for thread 1 ORA-00289: suggestion : /opt/oracle/oradata/conner/archive/1_7.dbf ORA-00280: change 240560269 for thread 1 is in sequence #7
Specify log: {=suggested | filename | AUTO | CANCEL}
ORA-00279: change 240600632 generated at 06/10/2005 10:42:26 needed for thread 1 ORA-00289: suggestion : /opt/oracle/oradata/conner/archive/1_8.dbf ORA-00280: change 240600632 for thread 1 is in sequence #8 ORA-00278: log file '/opt/oracle/oradata/conner/archive/1_7.dbf' no longer needed for this recovery
Specify log: {=suggested | filename | AUTO | CANCEL} auto ORA-00279: change 240620884 generated at 06/10/2005 10:45:42 needed for thread 1 ORA-00289: suggestion : /opt/oracle/oradata/conner/archive/1_9.dbf ORA-00280: change 240620884 for thread 1 is in sequence #9 ORA-00278: log file '/opt/oracle/oradata/conner/archive/1_8.dbf' no longer needed for this recovery
ORA-00283: recovery session canceled due to errors ORA-00600: internal error code, arguments: [3020], [4242465], [1], [9], [314], [272], [], [] ORA-10567: Redo is inconsistent with data block (file# 1, block# 48161) ORA-10564: tablespace SYSTEM ORA-01110: data file 1: '/opt/oracle/oradata/conner/system01.dbf' ORA-10560: block type 'DATA SEGMENT HEADER - UNLIMITED'
ORA-01112: media recovery not started
ORA-00279: change 240620949 generated at 06/10/2005 10:45:44 needed for thread 1 ORA-00289: suggestion : /opt/oracle/oradata/conner/archive/1_9.dbf ORA-00280: change 240620949 for thread 1 is in sequence #9
Specify log: {=suggested | filename | AUTO | CANCEL} cancel Media recovery cancelled. SQL> alter database open resetlogs;
------------------------------------------------------------ /opt/oracle/oradata/conner/system01.dbf /opt/oracle/oradata/conner/undotbs01.dbf /opt/oracle/oradata/conner/users01.dbf
恢复现已完成 |
