Ora-16004(Data guard)

Question

At the time checking with transcation in primary DB,
it is not getting updated even after number of logswitch.
second thing, i tried opening the standby to view the update,
after giving startup i got the following error...
SQL> startup force
ORACLE instance started.
Total System Global Area  289406976 bytes
Fixed Size                  1248576 bytes
Variable Size              92275392 bytes
Database Buffers          188743680 bytes
Redo Buffers                7139328 bytes
Database mounted.
ORA-16004: backup database requires recovery
ORA-01157: cannot identify/lock data file 1 - see DBWR trace file
ORA-01110: data file 1: 'D:\ORACLE\PRODUCT\10.2.0\ORADATA\TEST1\SYSTEM01.DBF'

Answer 1

why did you use
startup force ?you can't open the DG using this method.
as you DG database will be in autorecovery mode, your system tablespace is asking for recovery. this is the expected behaviour.
you can open the dataguard in read only mode but not read/write mode. even if you want to open it in the read/write mode using failiover method this is not the way.
you can use following method to open your standby in failover method
+1. Identify and resolve any gaps in the archived redo log files.+
SELECT THREAD#, LOW_SEQUENCE#, HIGH_SEQUENCE# FROM V$ARCHIVE_GAP;
If any file is listed then copy it from primary and register it to the standby.
ALTER DATABASE REGISTER PHYSICAL LOGFILE 'filespec1';
+2. Copy any other missing archived redo log files and register it to standby database.+
SELECT UNIQUE THREAD# AS THREAD, MAX(SEQUENCE#) OVER (PARTITION BY thread#) AS LAST from V$ARCHIVED_LOG;
ALTER DATABASE REGISTER PHYSICAL LOGFILE 'filespec1';
+3. Initiate a failover on the target physical standby database.+
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH FORCE;
+4.Convert the physical standby database to the primary role.+
ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY;
+5. If the standby database has never been opened before in readonly mode then open the database:+
Alter database open;
Or else:
Shutdown immediate;
Startup;
Hope that helps you.
Anil Malkai
Edited by: Anil Malkai on Mar 18, 2010 3:01 AM