Sujatha,

There is never, ever, ever, ever, a perfect time to use
_allow_resetlogs_corruption.
Never ever. The results of such an operation may not be known for hours,
days or weeks.
Look which datafile it is that needs recovery, system01.dbf... which means
that if you
force open the database you could (could) end up with an inconsistent data
dictionary.
It gives me the willies everytime someone suggests the use of this
parameter. If your
recovery strategy is such that you can not conveniently recover your
database in cases
like this, then it's time to seriously rethink the strategy.


Cheers!!

RF

-----Original Message-----
Madan
Sent: Monday, January 27, 2003 6:14 PM
To: Multiple recipients of list ORACLE-L


Hi,

DB: 8.1.5.0.0
O/S: Solaris 2.7

This database is the recovery catalog database. It is in noarchivelog mode
and is backed up cold.
Unfortunately, something happened on Thursday and the database does not
startup. I receive the following errors:

SQL> startup
ORACLE instance started.

Total System Global Area   25410960 bytes
Fixed Size                    64912 bytes
Variable Size               8388608 bytes
Database Buffers           16777216 bytes
Redo Buffers                 180224 bytes
Database mounted.
ORA-01589: must use RESETLOGS or NORESETLOGS option for database open


SQL> recover database;
ORA-00283: recovery session canceled due to errors
ORA-00354: corrupt redo log block header
ORA-00353: log corruption near block 78 change 1113558 time 01/24/03
01:51:40
ORA-00312: online log 2 thread 1: '/nsr/u02/oradata/RCVCATDB/log2a.rdo'

SQL> recover database until time '2003-01-24:00:00:00';
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error
below
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/nsr/u02/oradata/RCVCATDB/system01.dbf'

Is this the "perfect" time where I can use the _allow_resetlogs_corruption
parameter??? I know I have the cold backups ... but they have sent the tapes
off site and it is going to take a while for the tapes to be located and
sent to the data center and we need this catalog database up and running
asap.

Thanks
Sujatha

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