why rman looks for previous backup and not current backups.we backup to tape and every day tape goes offsite and was trying to restore todays backup for creating duplicate database.Somehow rman looks for previous backup which is not there in tape library and
throws error "not to able to find sequential file ........"
we run on win2000 adv. server oracle18.104.22.168 .Below is the backup script
allocate channel d1 type ='sbt_tape';
allocate channel d2 type ='sbt_tape';
sql "ALTER SYSTEM ARCHIVE LOG CURRENT";
backup archivelog all format 'ar_%d_%s_%p_%t';
backup incremental level 0 tag = 'Full Level 0' database
include current controlfile
filesperset = 15
release channel d1;
release channel d2;
after backup i do resync catalog,crosscheck backup and archivelogs
I think you have to backup controlfile separately (after the full backup), because in your case controlfile has previous backup information and does not have the current one - that is why RMAN asks for previous backup. In your case FULL restore without previous backup is not possible.