Hi,
Here is the information describing my issue about trace files and data guard.

database: oracle 9.2.0
os: Linux advance 2.1
running model: data guard

5 months ago, i had set the parameter log_archive_trace to zero,
but i still found the following information in the trace file esal_arc0_8339.trc.
i can not understand, can anyone tell me why?

and i also want to know whether it is definite that oracle will not write any informative messages
except errors into trace files as long as the value is zero?

Destination LOG_ARCHIVE_DEST_2 is in CLUSTER CONSISTENT mode
Destination LOG_ARCHIVE_DEST_2 is in MAXIMUM PERFORMANCE mode
- Created archivelog as '/home/oracle/oradata/esal/archive/1_17864.arc'
Destination LOG_ARCHIVE_DEST_2 is in CLUSTER CONSISTENT mode
Destination LOG_ARCHIVE_DEST_2 is in MAXIMUM PERFORMANCE mode
- Created archivelog as '/home/oracle/oradata/esal/archive/1_17866.arc'

thanks
novel gene