ORA-01111: for undo tablespace

Question

Hi,
We have large archive gap in standby.
When we try to apply archive log manually using recover standby database, it throws the below error
SQL> recover standby database;
ORA-00283: recovery session canceled due to errors
ORA-01111: name for data file 35 is unknown - rename to correct file
ORA-01110: data file 35: '/data/db/tech_st/11.1.0/dbs/UNNAMED00035'
ORA-01157: cannot identify/lock data file 35 - see DBWR trace file
ORA-01111: name for data file 35 is unknown - rename to correct file
ORA-01110: data file 35: '/data/db/tech_st/11.1.0/dbs/UNNAMED00035'
We have added File 35 in Primary in undo tablespace , hence it's throwing error.
Please advice.
Thanks

Answer 1

Hi,
If you have the same filesystem on both primary and standby database, then why dont you try backing up single file and restoring to standby database.
Connect to your primary database:
rman target /
run
allocate channels...;
backup datafile 35;
Copy the backup piece to standby database. On standby database:
rman target /
catalog start with 'backup location';
restore datafile 35;
then on your sqlplus:
recover standby database;
Hope this will resolve your problem.