RMAN-06183: datafile or datafile copy (file number ) larger than MAXSETSIZE

One of our database backups were failing, when looked at the backup log.

RMAN>
connected to target database: MYDB (DBID=1218259347)

RMAN> 2> 3> 4> 5> 6> 7> 8> 9> 10> 11> 12>
allocated channel: dsk1
channel dsk1: SID=1136 instance=MYDB1 device type=DISK

allocated channel: dsk2
channel dsk2: SID=1419 instance=MYDB1 device type=DISK

Starting backup at 29-NOV-11
released channel: dsk1
released channel: dsk2
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup command at 11/29/2011 16:00:45
RMAN-06183: datafile or datafile copy +DATA_01/MYDB/datafile/xxusa_data.307.757873839 (file number 40) larger than MAXSETSIZE

RMAN>


From the above error message it is evident that MAXSETSIZE is set at the RMAN level.

So to verify this:

unixhost(catalogdb) /export/home/oracle/sshaik
>rman

Recovery Manager: Release 11.2.0.1.0 - Production on Thu Dec 1 11:46:20 2011

Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.

RMAN> connect target rmanbackup/@diskqb1

connected to target database: diskQB (DBID=1218259347)

RMAN> connect catalog rcat_oth/@catalogdb

connected to recovery catalog database

RMAN> show all;

RMAN configuration parameters for database with db_unique_name diskQB are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default
----
CONFIGURE MAXSETSIZE TO 30720 M;

Here we go so we have the max file size limit of 30g where as my file size is around 32 g. So to fiz this...

RMAN> CONFIGURE MAXSETSIZE clear
2> ;

old RMAN configuration parameters:
CONFIGURE MAXSETSIZE TO 30720 M;
RMAN configuration parameters are successfully reset to default value
starting full resync of recovery catalog
full resync complete

RMAN> show all;

RMAN configuration parameters for database with db_unique_name diskQB are:

==
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
=