RMAN> run{
2> allocate channel t1 type 'sbt_tape' ;
3> allocate channel t2 type 'sbt_tape' ;
4> backup datafile 3
5> format 'test_bk_%u_%p_%s.RMN'
6> include current controlfile;
7> }
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of allocate command on t1 channel at 09/01/2007 04:25:21
ORA-19554: error allocating device, device type: SBT_TAPE, device name:
ORA-27211: Failed to load Media Management Library
Additional information: 2
RMAN>
################################
###### 但是备份到disk却没有问题
################################
RMAN>
RMAN>
RMAN>
RMAN> run{
2> allocate channel t1 type disk ;
3> allocate channel t2 type disk ;
4> backup datafile 2
5> format '/iarch/test_bk_%u_%p_%s.RMN'
6> include current controlfile;
7> }
allocated channel: t1
channel t1: sid=58 devtype=DISK
allocated channel: t2
channel t2: sid=70 devtype=DISK
Starting backup at 01-SEP-07
channel t1: starting full datafile backupset
channel t1: specifying datafile(s) in backupset
including current controlfile in backupset
channel t1: starting piece 1 at 01-SEP-07
channel t2: starting full datafile backupset
channel t2: specifying datafile(s) in backupset
input datafile fno=00002 name=/dev/vg_iora01/rdata_1g_001
channel t2: starting piece 1 at 01-SEP-07
channel t1: finished piece 1 at 01-SEP-07
piece handle=/iarch/test_bk_01iqqmc8_1_1.RMN comment=NONE
channel t1: backup set complete, elapsed time: 00:00:04
channel t2: finished piece 1 at 01-SEP-07
piece handle=/iarch/test_bk_02iqqmca_1_2.RMN comment=NONE
channel t2: backup set complete, elapsed time: 00:00:37
Finished backup at 01-SEP-07
released channel: t1
released channel: t2
RMAN>