RMAN as part of testing environment

Question

Hello,
I have quire simple task which I need to do with RMAN. I have one tablespace ( This tablespace is called "example" and Is attached to 11g1 ) which I'm using as target for workload balancing algorithm .
I know how to create backup.
RMAN > SQL 'ALTER TABLESPACE example OFFLINE';
RMAN > BACKUP TABLESPACE example FORMAT 'fooo%y.bkp' TAG my_label
RMAN > SQL 'ALTER TABLESPACE example ONLINE';
I know how to recover/restore:
RMAN > SQL 'ALTER TABLESPACE example OFFLINE';
RMAN > RESTORE TABLESPACE example FROM TAG my_label;
RMAN > RECOVER TABLESPACE example;
RMAN > SQL 'ALTER TABLESPACE example ONLINE
// Please note that I'm writing it from memory
My problem is that I get error and have trouble to turn online tablespace when I change some data
between backup and restore operations. I guess tablespace Is locked because there is no 100%
of integration of data and new changes from transaction log should be inseted/skipped before launching
tablespace.
Error is in polish language:
ORA-01113: plik 5 wymaga zastosowania przywracania noťnikˇw // ~ 5'th file requires data storege recovery..
ORA-01110: plik danych 5: 'C:\xxx\ORADATA\ORCL\EXAMPLE01.DBF'
How can I solve this problem?
ps. When I use few times RECOVER / RESTORE i'm finally able to set Online tablespace, but I don't like
it that I'm not sure what's going on there.
Thank You,
R.

Answer 1

SQL> archive log list
Database log mode              No Archive Mode
Automatic archival             Disabled
Archive destination            USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence     25
Current log sequence           27
RMAN> run
2> {
3> sql 'alter tablespace users offline';
4> backup tablespace users format 'foo%y.bkp' tag my_lable;
5> sql 'alter tablespace users online';
6> }
sql statement: alter tablespace users offline
Starting backup at 24-OCT-09
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00004 name=/u01/app/oracle/oradata/his/users01.dbf
channel ORA_DISK_1: starting piece 1 at 24-OCT-09
channel ORA_DISK_1: finished piece 1 at 24-OCT-09
piece handle=/u01/app/oracle/product/11.1.0/db_1/dbs/foo%y.bkp tag=MY_LABLE comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 24-OCT-09
Starting Control File and SPFILE Autobackup at 24-OCT-09
piece handle=/u01/app/oracle/flash_recovery_area/HIS/autobackup/2009_10_24/o1_mf_s_701084425_5g519tvw_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 24-OCT-09
sql statement: alter tablespace users online
RMAN> exit
Recovery Manager complete.
[oracle@localhost ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.1.0.6.0 - Production on Sat Oct 24 09:41:05 2009
Copyright (c) 1982, 2007, Oracle.  All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> conn scott/tiger
Connected.
SQL> create table t1 as select * from all_objects
  2  /
Table created.
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@localhost ~]$ rman target /
Recovery Manager: Release 11.1.0.6.0 - Production on Sat Oct 24 09:41:43 2009
Copyright (c) 1982, 2007, Oracle.  All rights reserved.
connected to target database: HIS (DBID=3219691467)
RMAN> run
2> {
3> sql 'alter tablespace users offline';
4> restore tablespace users from tag my_lable;
5> recover tablespace users;
6> sql 'alter tablespace users online';
7> }
using target database control file instead of recovery catalog
sql statement: alter tablespace users offline
Starting restore at 24-OCT-09
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=126 device type=DISK
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/his/users01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/product/11.1.0/db_1/dbs/foo%y.bkp
channel ORA_DISK_1: piece handle=/u01/app/oracle/product/11.1.0/db_1/dbs/foo%y.bkp tag=MY_LABLE
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
Finished restore at 24-OCT-09
Starting recover at 24-OCT-09
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:01
Finished recover at 24-OCT-09Why the same error is not happening as you are having , reason is that i have current online redo log still not overwritten , if its overwritten by subsequent continuous log switch then i lost redo and will not able to provide sufficient redo.If my database archive log enabled then RMAN recovery apply redo from archivelog rather from online redo log file.
Look now if redo log file is overwritten by subsequent log switch after backing up users tabelsapce
RMAN> run
2> {
3> sql 'alter tablespace users offline';
4> backup tablespace users format 'foo%y.bkp' tag my_lable;
5> sql 'alter tablespace users online';
6> }
using target database control file instead of recovery catalog
sql statement: alter tablespace users offline
Starting backup at 24-OCT-09
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=132 device type=DISK
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00004 name=/u01/app/oracle/oradata/his/users01.dbf
channel ORA_DISK_1: starting piece 1 at 24-OCT-09
channel ORA_DISK_1: finished piece 1 at 24-OCT-09
piece handle=/u01/app/oracle/product/11.1.0/db_1/dbs/foo%y.bkp tag=MY_LABLE comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:02
Finished backup at 24-OCT-09
Starting Control File and SPFILE Autobackup at 24-OCT-09
piece handle=/u01/app/oracle/flash_recovery_area/HIS/autobackup/2009_10_24/o1_mf_s_701085363_5g5276v4_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 24-OCT-09
sql statement: alter tablespace users online
RMAN> exit
Recovery Manager complete.
[oracle@localhost ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.1.0.6.0 - Production on Sat Oct 24 09:56:15 2009
Copyright (c) 1982, 2007, Oracle.  All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> alter system switch logfile
  2  /
System altered.
SQL> /
System altered.
SQL> /
System altered.
SQL> /
System altered.
SQL> /
System altered.
SQL> /
System altered.
SQL> /
System altered.Now that redo is overwritten by subsequent continuous log switch , you don't have archivelog then you lost redo and cannot supply redo during recovery of users tablespace.
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@localhost ~]$ rman target /
Recovery Manager: Release 11.1.0.6.0 - Production on Sat Oct 24 09:56:38 2009
Copyright (c) 1982, 2007, Oracle.  All rights reserved.
connected to target database: HIS (DBID=3219691467)
RMAN> run
2> {
3> sql 'alter tablespace users offline';
4> restore tablespace users from tag my_lable;
5> recover tablespace users;
6> sql 'alter tablespace users online';
7> }
using target database control file instead of recovery catalog
sql statement: alter tablespace users offline
Starting restore at 24-OCT-09
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=122 device type=DISK
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/his/users01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/product/11.1.0/db_1/dbs/foo%y.bkp
channel ORA_DISK_1: piece handle=/u01/app/oracle/product/11.1.0/db_1/dbs/foo%y.bkp tag=MY_LABLE
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
Finished restore at 24-OCT-09
Starting recover at 24-OCT-09
using channel ORA_DISK_1
starting media recovery
archived log for thread 1 with sequence 40 is already on disk as file /u01/app/oracle/oradata/his/redo01.log
archived log for thread 1 with sequence 41 is already on disk as file /u01/app/oracle/oradata/his/redo02.log
archived log for thread 1 with sequence 42 is already on disk as file /u01/app/oracle/oradata/his/redo03.log
RMAN-08187: WARNING: media recovery until SCN 1276644 complete
Finished recover at 24-OCT-09
sql statement: alter tablespace users online
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of sql command on default channel at 10/24/2009 09:57:58
RMAN-11003: failure during parse/execution of SQL statement: alter tablespace users online
ORA-01113: file 4 needs media recovery
ORA-01110: data file 4: '/u01/app/oracle/oradata/his/users01.dbf'Khurram