How to recover the rman catalog

all,
I have created a recovery catalog and back it up using the control file and the nocatalog option - see below
rman nocatclog target=rman
run{
backup database;
backup (archivelog all delete input);
How do I recover the catalog if it dies?
rgds
alan

hi,
thanks for the response. I will give it a try, but at a cistomer site doing this and they have no test server to try it on. Production only so need to be sure of what is going to happen.
rgds
alan

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It should be something like the following, but really you should read and understand the rman documentation first ...
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exit
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exit
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When one of contolfile is corrupt then how to recover the controlfile?

when one of contolfile is corrupt then how to recover the controlfile?

Let us say we have 3 control files and they are named as "cont01.ctl,cont02.ctl & cont02.ctl" and they are stored in three different mount points (/u01,/u02 & /u03)
first controlfile -> /u01/oradata/prod/cont01.ctl
second controlfile -> /u02/oradata/prod/cont02.ctl
third controlfile -> /u03/oradata/prod/cont03.ctl
1. According to the ALERT log file or any other source let us say the third controlfile got corrupted...
Now , what you can do is you have to shutdown the database and remove cont03.ctl and copy it form cont01.ctl or cont02.ctl :
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2. Suppose all the files of the database got corrupted ... First of all you need to have backup of the database... the steps that are needed of this scenario are :
--> shutdown the database with abort option
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Assuming its catalog:
$ rman target / catalog usr/pawd@tns
RMAN> STARTUP NOMOUNT;
RMAN> restore controfile (from autobackup) ; -- in case you have auto backup then use the autobackup option
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RMAN> alter database open resetlogs ;
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Hope its clear...Cheers!

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I am facing a problem with Oracle database, which is related to archivelogs.
Our development database is running in archivelog mode, but we don't have backups scheduled and have no recovery catalog.
When the database was in running condition, disk got full, so some archivelogs were deleted manually.
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Total System Global Area 1444383504 bytes
Fixed Size 731920 bytes
Variable Size 486539264 bytes
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ERROR at line 1:
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ORA-01110: data file 1: '/export/home/oracle/dev/ADVFRW/ADVFRW.system'
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1
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CANCEL
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SQL>
1. How to recover the database and bring it online
Any help will be highly appreciated.
With Regards
Hemant Joshi
Edited by: hem_Kec on Sep 7, 2008 9:07 AM

Hi,
Archive log files are the copies of redolog files.As redo log files are circularly overwritten,oracle generates archive log file of the corresponding redo logfiles being overwritten.So if you have a backup that dates back to 10 am in the morning and if your database creashed at 3 pm,you cannot use the redo log files alone as they have incomplete information.To completely recover the database upto 3 pm,you need archive log files generated between 10 am to 3 pm. In your case since you are missing one archive log file,you cannot perform complete recovery and hence would suffer data loss.

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Hi:
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connect rman/rman
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oraclekt
Edited by: oraclekt on Sep 1, 2010 9:58 PM

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