[20130502]rman的set nocfau表示什么.txt

今天在论坛发贴问rman的set nocfau表示什么？
http://www.itpub.net/thread-1784962-1-1.html

按照bluemoon0083表示：估计是隐藏选项，no controlfile autobackup的意思

自己不做测试了，摘录如下：

RMAN> configure controlfile autobackup on;

new RMAN configuration parameters:
CONFIGURE CONTROLFILE AUTOBACKUP ON;
new RMAN configuration parameters are successfully stored

RMAN> show controlfile autobackup;

RMAN configuration parameters for database with db_unique_name XXXXX are:
CONFIGURE CONTROLFILE AUTOBACKUP ON;

RMAN> backup archivelog sequence 1;

Starting backup at 02-MAY-13
using channel ORA_DISK_1
channel ORA_DISK_1: starting archived log backup set
channel ORA_DISK_1: specifying archived log(s) in backup set
input archived log thread=1 sequence=1 RECID=10 STAMP=813636057
channel ORA_DISK_1: starting piece 1 at 02-MAY-13
channel ORA_DISK_1: finished piece 1 at 02-MAY-13
piece handle=/oracle/XXXXX/archive/flashback/XXXXX/backupset/2013_05_02/o1_mf_annnn_TAG20130502T014027_8r49mvr1_.bkp tag=TAG20130502T014027 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:15
Finished backup at 02-MAY-13

Starting Control File Autobackup at 02-MAY-13
piece handle=/oracle/XXXXX/archive/flashback/XXXXX/autobackup/2013_05_02/o1_mf_n_814326043_8r49ndl7_.bkp comment=NONE
Finished Control File Autobackup at 02-MAY-13

RMAN> run {
   set nocfau;
   backup archivelog sequence 1;
}2> 3> 4>

executing command: SET NOCFAU

Starting backup at 02-MAY-13
using channel ORA_DISK_1
channel ORA_DISK_1: starting archived log backup set
channel ORA_DISK_1: specifying archived log(s) in backup set
input archived log thread=1 sequence=1 RECID=10 STAMP=813636057
channel ORA_DISK_1: starting piece 1 at 02-MAY-13
channel ORA_DISK_1: finished piece 1 at 02-MAY-13
piece handle=/oracle/XXXXX/archive/flashback/XXXXX/backupset/2013_05_02/o1_mf_annnn_TAG20130502T014109_8r49o5nh_.bkp tag=TAG20130502T014109 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:15
Finished backup at 02-MAY-13