That is a simple mistake.. "ALL" was missing..

RMAN> backup filesperset 5 archivelog ALL NOT BACKED UP SINCE TIME 'SYSDATE-1/24' delete input ;

Starting backup at 01-JUL-11
current log archived
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=1154 device type=DISK
Other comments...

1) sql "alter system archive log current"; ==> is not required.

Any archivelog backup will archive the current log as marked above.


2) connect target /
connect catalog rman/rman


Both are connecting locally RMAN is in the target database?

Thanks,