RMAN> list archivelog all;
show archivelog deletion policy;
configure archivelog deletion policy;
configure archivelog deletion policy to backed up 1 times to disk;
配置归档删除策略，只要求归档备份一次到磁盘，之后归档就允许被删除。
backup archivelog all delete all input;
备份归档的同时删除所有输入的归档日志文件。
查看时已经没有归档日志。
RMAN> list archivelog all;
specification does not match any archived log in the repository

RMAN>  list backup;
List of Backup Sets
===================

BS Key  Size       Device Type Elapsed Time Completion Time
------- ---------- ----------- ------------ ---------------
1       822.00M    DISK        00:00:43     07-APR-17
        BP Key: 1   Status: AVAILABLE  Compressed: NO  Tag: TAG20170407T092004
        Piece Name: /u01/app/oracle/fast_recovery_area/TESTDB/backupset/2017_04_07/o1_mf_annnn_TAG20170407T092004_dgftb4lp_.bkp

  List of Archived Logs in backup set 1
  Thrd Seq     Low SCN    Low Time  Next SCN   Next Time
  ---- ------- ---------- --------- ---------- ---------
  1    1070    15073605   02-APR-17 15078206   02-APR-17
  1    1071    15078206   02-APR-17 15078265   02-APR-17
  1    1072    15078265   02-APR-17 15083471   02-APR-17
  1    1073    15083471   02-APR-17 15108445   02-APR-17
  1    1074    15108445   02-APR-17 15130090   02-APR-17
  1    1075    15130090   02-APR-17 15148372   03-APR-17
  1    1076    15148372   03-APR-17 15161574   03-APR-17
  1    1077    15161574   03-APR-17 15181830   03-APR-17
  1    1078    15181830   03-APR-17 15207352   03-APR-17
  1    1079    15207352   03-APR-17 15224200   04-APR-17
  1    1080    15224200   04-APR-17 15240128   04-APR-17
  1    1081    15240128   04-APR-17 15240604   04-APR-17
  1    1082    15240604   04-APR-17 15261618   04-APR-17
  1    1083    15261618   04-APR-17 15290623   04-APR-17
  1    1084    15290623   04-APR-17 15292478   04-APR-17
  1    1085    15292478   04-APR-17 15317260   05-APR-17
  1    1086    15317260   05-APR-17 15321811   05-APR-17
  1    1087    15321811   05-APR-17 15336693   05-APR-17
  1    1088    15336693   05-APR-17 15360955   05-APR-17
  1    1089    15360955   05-APR-17 15371603   05-APR-17
  1    1090    15371603   05-APR-17 15391219   06-APR-17
  1    1091    15391219   06-APR-17 15403303   06-APR-17
  1    1092    15403303   06-APR-17 15415725   06-APR-17
  1    1093    15415725   06-APR-17 15438932   06-APR-17
  1    1094    15438932   06-APR-17 15454209   06-APR-17
  1    1095    15454209   06-APR-17 15464675   07-APR-17
  1    1096    15464675   07-APR-17 15485971   07-APR-17
  1    1097    15485971   07-APR-17 15489695   07-APR-17

查看归档的操作系统文件时，已经被删除
[oracle@cn-111-testdb archivelog]$ ls -R
.:
2017_04_02  2017_04_03  2017_04_04  2017_04_05  2017_04_06  2017_04_07

./2017_04_02:

./2017_04_03:

./2017_04_04:

./2017_04_05:

./2017_04_06:

./2017_04_07:

将归档日志文件变成了备份集
[oracle@cn-111-testdb 2017_04_07]$ ll
total 841740
-rw-r----- 1 oracle oinstall 861935104 Apr  7 09:20 o1_mf_annnn_TAG20170407T092004_dgftb4lp_.bkp
[oracle@cn-111-testdb 2017_04_07]$ pwd
/u01/app/oracle/fast_recovery_area/TESTDB/backupset/2017_04_07