Names of Oracle Redo logs

Question

Hi!
Since we copied SAP system and execute the redo log backups our redo log s have the following convention:
- ARCH02000_070438484190.001
We would like to have instead the other convention:
- <sid>ARCH02000_070438484190.001
Quesiton:
1) Which parameter is responsible for this setting?
2) Which file (init<sid>.ora, other) other tools (e.g. brtools) should be edited therefore?
Thank you!
regards

Answer 1

Hi Holger,
the complete name is concatenated from
log_archive_dest
or
log_archive_dest_1
and
log_archive_format
The recommended Parameters are
log_archive_dest_1='LOCATION=/oracle/SID/oraarch/SIDarch'
log_archive_format='%t_%s_%r.dbf'
which result in
/oracle/SID/oraarch/SIDarch%t_%s_%r.dbf
with %t expanded to the treadinstance and usually will be just "1"
and %s beinig expanded to the sequence number
and %r being expanded to the resetlogsid
So I'll guess your setup is
log_archive_dest=/oracle/SID/oraarch/SID
log_archive_format=' ARC%S_%R%T'
And the one system that is diffrent just has
log_archive_dest=/oracle/SID/oraarch/
> When I try to execute the following commando:
>
> ALTER SYSTEM set log_archive_format=FI1ARC%S_%R%T scope=spfile:
>
Try it with quotes around it. The "percent" is a special char to sql.
ALTER SYSTEM set log_archive_format='FI1ARC%S_%R%T' scope=spfile
Volker