UNNAMED00044

Question

Hi experts;
I am getting an error from standby database
alter database recover managed standby database disconnect;
Database altered.
but alert log shows
name for data file 44 is unknown - rename to correct file
ORA-01110: data file 44: '/u02/app/oracle/product/11.1.0/db_1/dbs/UNNAMED00044'
Errors in file /u02/app/oracle/diag/rdbms/orcl_sb/orcl/trace/orcl_mrp0_10335.trc:
ORA-01111: name for data file 44 is unknown - rename to correct file
ORA-01110: data file 44: '/u02/app/oracle/product/11.1.0/db_1/dbs/UNNAMED00044'
MRP0: Background Media Recovery process shutdown (orcl)
Completed: alter database recover managed standby database disconnect
Actually my assistant added a datafile but & after that when i came back it alert show that Standby is unsynchoronized
In production db i have make this datafile offline & when I alter it it says media recovery is needed for datafile 44
Please help regards

Answer 1

Hi experts;
You guys are great. I have resolved the issue by
Setting the Standby Database to
1. standby_file_management='MANUAL'
2. Rename the file in Standby >> alter database create datafile ‘/u02/app/oracle/product/11.2.0/dbhome_1/dbs/UNNAMED00044′ as '/u02/app/oracle/oradata/orcl/users15.dbf'
3. Again setting >> standby_file_management='AUTO'
Logs started reporting that standby is in Sync
After doing all this I recovered the datafile# 44 through RMAN ( from this link http://www.orafaq.com/node/2395)
The Data Recovery Advisor tool can assist with diagnosing media failures, making recommendations and providing the RMAN commands to resolve the problem;
1.List failure
2.Advice failure
3.Repair failure
Issued the following commands on Primary
select file#,status from v$datafile;
FILE# STATUS
1 SYSTEM
6 ONLINE
44 RECOVER
set oracle_sid=orcl
Connect to RMAN >> rman target /RMAN> list failure;
List of Database Failures
=========================
Failure ID Priority Status Time Detected Summary
44 HIGH OPEN 11-FEB-13 one or more non-system datafiles are corrupt
RMAN> advise failure;
List of Database Failures
=========================
Failure ID Priority Status Time Detected Summary
44 HIGH OPEN 19-MAY-10 One or more non-system datafiles are corrupt
analyzing automatic repair options; this may take some time
using channel ORA_DISK_1
analyzing automatic repair options complete
Mandatory Manual Actions
========================
no manual actions available
Automated Repair Options
========================
Option Repair Description
1 Restore and recover datafile 7
Strategy: The repair includes complete media recovery with no data loss
Repair script: d:\oracle\app\diag\rdbms\che\che\hm\reco_948713839.hm
RMAN> repair failure;
Strategy: The repair includes complete media recovery with no data loss
Repair script: /u02/app/oracle/diag/rdbms/orcl/orcl/hm/reco_948713839.hm
contents of repair script:
# restore and recover datafile
sql 'alter database datafile 44 offline';
restore datafile 44;
recover datafile 44;
sql 'alter database datafile 44 online';
Do you really want to execute the above repair (enter YES or NO)? yes
executing repair script
sql statement: alter database datafile 44 offline
Starting restore at 11-FEB-10
using channel ORA_DISK_1
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:07
Finished restore at 11-FEB-10
Starting recover at 11-FEB-10
using channel ORA_DISK_1
starting media recovery
........Continues
sql statement: alter database datafile 44 online
repair failure complete
5. Verify the database
SQL> select file#,error,time from v$recover_file;
no rows selected
SQL> select file#,status from v$datafile;
FILE# STATUS
1 SYSTEM
3 ONLINE
44 ONLINE
Warm Regards