Database Administration (MOSC)

MOSC Banner

Looking for detailed explanation behind RMAN-08606 error

edited Oct 6, 2021 4:30PM in Database Administration (MOSC) 15 commentsQuestion
Hello,
We ran into this error in our rman backup:
RMAN-08606: warning: The change tracking file is invalid

The oracle note on this error is:
Cause:  Backup found changed blocks that were not marked in the change 
tracking file. See alert log for more information. 
Action: Do not use any of the incremental backups taken since the last full 
backup. 

What I am looking for are:

1)  what internal information rman uses to identify the unmarked blocks against the bct file to throw the error.  We understand ctwr keeps 8 versions of bitmap extents of the changed blocks in datafiles by default, but we want to know where the crosscheck reference information is coming from to validate the bct file, is it the controlfile or something else?  I could not find any oracle document on this.
Tagged:

Howdy, Stranger!

Log In

To view full details, sign in to My Oracle Support Community.

Register

Don't have a My Oracle Support Community account? Click here to get started.

Category Leaderboard

Top contributors this month

New to My Oracle Support Community? Visit our Welcome Center

MOSC Help Center