system表空間在線損壞修復（RMAN修復）

system表空間在線損壞修復（RMAN修復）

----------------------------模擬system表空間在線損壞------------------------------
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jun 8 14:50:54 2012

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

SQL> conn /as sysdba
Connected.
SQL> create table sys.strom (a number) tablespace system;

Table created.

SQL> alter system switch logfile;

System altered.

SQL> insert into sys.strom values(1);

1 row created.

SQL> alter system switch logfile;

System altered.

SQL> commit;

Commit complete.

SQL> insert into sys.strom values(2);

1 row created.

SQL> alter system switch logfile;

System altered.

SQL> commit;

Commit complete.

SQL> !
[oracle@station datafile]$ rman target /

Recovery Manager: Release 10.2.0.1.0 - Production on Fri Jun 8 14:54:06 2012

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database: ORCL (DBID=1312694260)

RMAN> list backup of tablespace system;

using target database control file instead of recovery catalog

RMAN> backup tablespace system;

Starting backup at 08-JUN-12
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=140 devtype=DISK
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=/u01/app/oracle/oradata/ORCL/datafile/o1_mf_system_7wnthzog_.dbf
channel ORA_DISK_1: starting piece 1 at 08-JUN-12
channel ORA_DISK_1: finished piece 1 at 08-JUN-12
piece handle=/u01/app/oracle/flash_recovery_area/ORCL/backupset/2012_06_08/o1_mf_nnndf_TAG20120608T145514_7x4lnl80_.bkp tag=TAG20120608T145514 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:45
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current control file in backupset
including current SPFILE in backupset
channel ORA_DISK_1: starting piece 1 at 08-JUN-12
channel ORA_DISK_1: finished piece 1 at 08-JUN-12
piece handle=/u01/app/oracle/flash_recovery_area/ORCL/backupset/2012_06_08/o1_mf_ncsnf_TAG20120608T145514_7x4lp12y_.bkp tag=TAG20120608T145514 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03
Finished backup at 08-JUN-12

RMAN> quit;

Recovery Manager complete.
[oracle@station datafile]$ rm -rf *system*
[oracle@station datafile]$ ls
o1_mf_example_7wntlh6m_.dbf  o1_mf_temp_7wntl6ng_.tmp      o1_mf_users_7x4j6bxl_.dbf
o1_mf_sysaux_7wnthzp2_.dbf   o1_mf_undotbs1_7wnthzt6_.dbf

[oracle@station datafile]$ sqlplus /nolog

SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jun 8 14:59:38 2012

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

SQL> conn /as sysdba
Connected.
SQL> shutdown abort;
ORACLE instance shut down.
SQL> startup
ORACLE instance started.

Total System Global Area  281018368 bytes
Fixed Size                  2020192 bytes
Variable Size             150998176 bytes
Database Buffers          125829120 bytes
Redo Buffers                2170880 bytes
Database mounted.
ORA-01157: cannot identify/lock data file 1 - see DBWR trace file
ORA-01110: data file 1:
'/u01/app/oracle/oradata/ORCL/datafile/o1_mf_system_7wnthzog_.dbf'

SQL> !

----------------------------模擬system表空間在線損壞------------------------------

-------------------------------system表空間在線損壞修復------------------------------
[oracle@station datafile]$ rman target /

Recovery Manager: Release 10.2.0.1.0 - Production on Fri Jun 8 15:00:08 2012

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database: ORCL (DBID=1312694260, not open)

RMAN> run {restore tablespace system;
2> recover tablespace system;
3> }

Starting restore at 08-JUN-12
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=155 devtype=DISK

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/datafile/o1_mf_system_7wnthzog_.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/flash_recovery_area/ORCL/backupset/2012_06_08/o1_mf_nnndf_TAG20120608T145514_7x4lnl80_.bkp
channel ORA_DISK_1: restored backup piece 1
piece handle=/u01/app/oracle/flash_recovery_area/ORCL/backupset/2012_06_08/o1_mf_nnndf_TAG20120608T145514_7x4lnl80_.bkp tag=TAG20120608T145514
channel ORA_DISK_1: restore complete, elapsed time: 00:00:56
Finished restore at 08-JUN-12

Starting recover at 08-JUN-12
using channel ORA_DISK_1

starting media recovery
media recovery complete, elapsed time: 00:00:03

Finished recover at 08-JUN-12

RMAN> alter database open;

database opened

RMAN> quit;

Recovery Manager complete.
[oracle@station datafile]$ sqlplus /nolog

SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jun 8 15:01:57 2012

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

SQL> conn /as sysdba
Connected.
SQL> select * from strom;

         A
----------
         1
         2

-------------------------------system表空間在線損壞修復------------------------------
SQL>