Originally posted by Rohit


RMAN> run
2> {
3> allocate channel c1 type disk;
4> backup archivelog all;
5> release channel c1;
6> }
Replace the above with the following ...

Code:
RMAN> run
2> {
3> allocate channel c1 type disk;
4> backup (archivelog all);
5> release channel c1;
6> }


or better still try the following code (with trivial modifications for your specific situation)

Code:
RMAN> run {
2> allocate channel d1 type disk;
3> backup
4> format '/backups/log_t%t_s%s_p%p'
5> (archivelog all);
6> release channel d1;
7> }
BTW, what is the version of oracle that you are running?

HTH.