RMAN (or) ARCHIVED LOG QUESTION?

[nabaig]

DBA's

I have database which was created in no archivelog mode and subsequently changed to ARCHIVE LOG MODE.

As a result I do not have SCN's 1 - 450. I installed RMAN and backed up the whole database and all my archive logs.

Now when I validate the entire backup - no problems.
But when I validate the archive logs get an error saying some targets not found.

Now my question is - How do i remove entries from the control file for thoes redo SCN's which I either dont need or which are not available in the archive log?
And how do I resync my catalog?

Thanks,
Nizar

[jmodic]

AFAIK you can't selectivelly remove some redolog entries from your controlfile. All you can do is to remove all redo entries and start counting redo sequences from the begining by:

ALTER DATABASE OPEN RESETLOGS;

Of course, full backups before and immediatelly after this operation would be highly recomended...

HTH,