RMAN to disk

[netbar]

I have the script below:

connect rcvcat rman/jifVufs@RCATSSI
connect target internal/internal;
run {
allocate channel t1 type disk;
allocate channel t2 type disk;
backup
format '/u01/backup/online_db_%d_%t_%s_%p'
(database
include current controlfile);
release channel t1;
}

The result file to disk is over 2GB and I am getting errors what is the way around this!

Will I have to backup through a pipe and gzip?

[BV1963]

There few ways to restrcit size of output . Here is one of them:

allocate channel t2 type disk ;
set limit channel t2 kbytes = 2000000;

Find more about backupset and backup piece in rman documentation.