Rman backup

run {
allocate channel D1 type disk;
change archivelog all validate;
backup as compressed backupset database include current controlfile
format '/u02/oracle/backups/db1_%t_%s_%p';
sql 'alter system archive log current';
backup archivelog all delete input
format '/u02/oracle/backups/db1_arch_%t_%s_%p';
release channel D1;
}