RE: Lost ofall redo logs

Arun:

You are right. The original poster *clearly* said

LOST ALL REDO LOGS
NO BACKUP. In the above situation, you have to open the databases using the some special tricks and I don't think you need to go back and refer BAckup and Recovery Manuals (You can not find anything for this situation, that is another story)

Those parameters will bring up the database if the database is cleanly shudowned (read: Shutdown Normal/Immediate) and you will
have to do some more tricks to get the
database up if it is crashed (read: shutdown ABORT). I don't think it is a bad advice..

YMMV KG

-----Original Message-----
Chakrapanirao
Sent: Wednesday, September 18, 2002 11:08 PM To: Multiple recipients of list ORACLE-L

Well one I do want to make clear I have never tried to give bad advice to people.
Since the user in his mail had said that he does not have a backup and does not have any online redo logs can you please let me know how else can he open the database, when he said he does not have a back it assumes that he does not have a os backup and also the rman backup. This might be the undocumented thing but this Is the only way it works And this had happened in one our case and the only way we could open the database is to force open the database in a corrupt mode take an export and import back into the new database.

If you still think I am trying to give a bad advice well sorry that I am giving bad advices.

-----Original Message-----
Sent: Thursday, September 19, 2002 12:33 AM To: Multiple recipients of list ORACLE-L

Arun, since WHEN has been using undocumented parameters the normal way of doing things, I think you need to go back and lookup backup/recovery concepts.

Feel free to read both user managed and RMAN backup recovery docs/scenarios.

You are giving bad advice to people on the list who might be new.

joe

Arun Chakrapanirao wrote:

>The only way u can open your database is to add a parameter file
>as
>
>_allow_resetlogs_corruption=TRUE
>
>_corrupted_rollback_segments= TRUE
>
>_offline_rollback_segments=(the rollback segment names)
>
>activate the database and then immediately take an export of the whole
>database.
>Create a new database and then import all the data to this new database.
>
>
>-----Original Message-----
>Sent: Wednesday, September 18, 2002 5:23 PM
>To: Multiple recipients of list ORACLE-L
>
>Nop, all redo logs gone away...
>
>----- Original Message -----
>To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
>Sent: Wednesday, September 18, 2002 5:43 PM
>
>
>
>
>>What about mirrored redo group members?
>>
>>Igor Neyman, OCP DBA
>>ineyman_at_perceptron.com
>>
>>
>>
>>----- Original Message -----
>>To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
>>Sent: Wednesday, September 18, 2002 4:30 PM
>>
>>
>>Hi people...
>>
>>What to do if I have LOST ALL REDO LOGS and i don4t have any backup?
>>
>>Thanks in advance!
>>
>>:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
>>Gilberto Gampert Universidade de Passo Fundo
>>Administrador de Banco de Dados Passo Fundo - RS - Bra5il
>>gampert@upf.br http://www.upf.br
>>:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
>>
>>
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