求助：netvault异机恢复的问题

ahnhjw

用netvault异机恢复oracle数据库，指定了数据库的DBID，然后使用rman target / nocatalog，然后进行controlfile的恢复，结果如下：
RMAN> run{allocate channel ch1 type sbt_tape;
2> restore controlfile from 'NVSERVER:#198:solfd:85_818424147:RMAN FULL DB TEST_1371528140';
3> }

NetVault --- MMS SBT sbtinit method.
NetVault --- Plugin: 'Oracle APM', Version: '6.5.6'.
NetVault --- SBT sbtinit2
allocated channel: ch1
channel ch1: sid=153 devtype=SBT_TAPE
channel ch1: Quest NetVault Backup Plug-in for Oracle v.6.5.6

Starting restore at 19-JUN-13

NetVault --- SBT Information requested for 'NVSERVER:#198:solfd:85_818424147:RMAN FULL DB TEST_1371528140'
NetVault --- SBT sbtend
released channel: ch1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 06/19/2013 15:01:09
RMAN-06172: no autobackup found or specified handle is not a valid copy or piece

大家有谁做过吗？求大家帮助！！！