vertias 存储备份老出错!!!!!!!!!请大家帮我看看

带库用的是IBM的3580,原来有一台SUN4800上的数据库(oracle)要做全备,给它分配的的三个media空间不足了,我就停了原先的一台测试机的备份,并把它的media加入到了volume pool下的4800db中,现在也就是一共四个media(id 4823L3),但是新加入的media没有条形码(不知如何添加),但是依旧报错,具体错误如下:

2008-10-09 22:27:57 -Error bptm (id=3756) error requesting media , TpErrno=Robot operation failed
2008-10-09 22:27:57 -Warning bptm (id=3756) media id 4823L3 load operation reported an error
2008-10-09 22:27:54 -mounting 4823L3
2008-10-09 22:27:57 -Current media 4823L3 complete, requesting next media Any
2008-10-09 22:42:30 -granted resourde 4823L3
2008-10-09 22:42:30 -granted resourde  IBM.ULT3580-TD3.00
2008-10-09 22:42:30 -granted resourde  bkserver-hcart3-robot-tld-0
2008-10-09 22:42:32 -mounted
2008-10-09 22:42:32 -positioning 4823L3 to file 2
2008-10-09 22:42:33 -begin writing
2008-10-09 22:42:33 -positioned 4823L3; position time:00:00:01
2008-10-09 22:42:46 -end writing; write time:00:00:13
the backup failed to back up the requested files(6)

以上是所报的错误 ,我想弄明白为什么我添加的新media没有条形码,我估计这新加的media也没有生效,这几天被这问题弄的恼火的很 ,谢谢各位了!!!