Dbid/backup confusion

Question

Hey;
I'm slowly working my way through the backup and recovery basics document. In it, I find that I'm supposed to be able to identify the dbid from the automatic control file backup name.
My DBID is:
SQL> select dbid from v$database;
DBID
1364692124
and verified by the rman output:
$ rman target /
Recovery Manager: Release 10.2.0.1.0 - Production on Tue Jul 14 16:07:58 2009
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database: OCI1 (*DBID=1364692124)*
Rman is configured to do autobackup of the controlfile and the format's still the default %F.
RMAN> show all;
using target database control file instead of recovery catalog
RMAN configuration parameters are:
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS;
CONFIGURE BACKUP OPTIMIZATION ON;
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default
CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/oracle/product/10.2.0/db_1/dbs/snapcf_oci1.f'; # default
According to the book, I'm supposed to see 1364692124 somewhere in the filename. I don't see that or the date that's supposed to be there:
$ find /oracle -name \*1364692124\* -print
$ find /oracle -name \*20090714\* -print
$
I then looked through the directory structure under /oracle/flash_recovery_area and found a directory called autobackup. That, at least, has a file that's very close to the control file size and matches the dates of the backups. It doesn't, however, have the dbid in the filename.
ll /oracle/flash_recovery_area/OCI1/autobackup/2009_07_14
total 6996
drwxr-x--- 2 oracle oinstall 4096 Jul 14 16:04 ./
drwxr-x--- 5 oracle oinstall 4096 Jul 14 16:04 ../
-rw-r----- 1 oracle oinstall 7143424 Jul 14 16:04 o1_mf_s_692208281_55swq988_.bkp
I assume I'm missing something pretty basic. Can someone point it out to me?
Thanks.
Doug O'Leary

Answer 1

Hey;
It's the oracle book on database backup and recovery basics. The url to the specific location discussing the file format is: http://download.oracle.com/docs/cd/B19306_01/backup.102/b14192/setup004.htm#sthref238
The specific section on identifying the dbid is http://download.oracle.com/docs/cd/B19306_01/backup.102/b14192/recov003.htm#i1038112 and refers back to the link in the first paragraph.
Thanks for the response.
Doug O'Leary