Error using Oracle Suggested Backup

Question

Hi, I am a first time DBA. A new 10g database has just been installed and I have just set up Oracle Suggested Backup in Enterprise Manager for the first time. The first run failed and this is the output log:
Any help or suggestion is sincerely appreciated.
Thanks.
Output Log
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jan 5 02:00:19 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> SQL> Connected.
SQL> SQL> SQL> Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> SQL> Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jan 5 02:00:37 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> SQL> Connected to an idle instance.
SQL> SQL> ORACLE instance started.
Total System Global Area 293601280 bytes
Fixed Size          1248600 bytes
Variable Size          100663976 bytes
Database Buffers     184549376 bytes
Redo Buffers          7139328 bytes
Database mounted.
SQL> Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
Recovery Manager: Release 10.2.0.1.0 - Production on Fri Jan 5 02:00:42 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
RMAN>
connected to target database: ATCFGENP (DBID=36478235, not open)
using target database control file instead of recovery catalog
RMAN>
echo set on
RMAN> run {
2> allocate channel oem_disk_backup device type disk;
3> recover copy of database with tag 'ORA$OEM_LEVEL_0';
4> backup incremental level 1 cumulative copies=1 for recover of copy with tag 'ORA$OEM_LEVEL_0' database;
5> }
allocated channel: oem_disk_backup
channel oem_disk_backup: sid=156 devtype=DISK
Starting recover at 05-JAN-07
no copy of datafile 1 found to recover
no copy of datafile 2 found to recover
no copy of datafile 3 found to recover
no copy of datafile 4 found to recover
no copy of datafile 5 found to recover
no copy of datafile 6 found to recover
no copy of datafile 7 found to recover
no copy of datafile 8 found to recover
no copy of datafile 9 found to recover
R_DAT1.DBF
output filename=D:\ORACLE\PRODUCT\10.2.0\FLASH_RECOVERY_AREA\ATCFGENP\DATAFILE\O1_MF_WAIVER_D_2SVY0K24_.DBF tag=ORA$OEM_LEVEL_0 recid=8 stamp=611028161
channel oem_disk_backup: datafile copy complete, elapsed time: 00:00:01
channel oem_disk_backup: starting incremental level 1 datafile backupset
channel oem_disk_backup: specifying datafile(s) in backupset
including current control file in backupset
including current SPFILE in backupset
channel oem_disk_backup: starting piece 1 at 05-JAN-07
released channel: oem_disk_backup
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ==============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on oem_disk_backup channel at 01/05/2007 02:02:46
ORA-19809: limit exceeded for recovery files
ORA-19804: cannot reclaim 7127040 bytes disk space from 2147483648 limit
RMAN> exit;
Recovery Manager complete.
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jan 5 02:02:47 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> SQL> Connected.
SQL> SQL>
Database altered.
SQL> Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options

Answer 1

Your Flashback Recovery Area is not sized properly, follow the suggestions as given by the error message:
Error:     ORA-19804 (ORA-19804)
Text:     cannot reclaim %s bytes disk space from %s limit
Cause:     Oracle cannot reclaim disk space of specified bytes from the
     DB_RECOVERY_FILE_DEST_SIZE limit.
Action:     There are five possible solutions: 1) Take frequent backup of
     recovery area using RMAN. 2) Consider changing RMAN retention
     policy. 3) Consider changing RMAN archivelog deletion policy. 4)
     Add disk space and increase DB_RECOVERY_FILE_DEST_SIZE. 5) Delete
     files from recovery area using RMAN.
Werner