tsm 备份oracle报错

ANS0326E: This node has exceeded its maximum number of mount points.
我百度之后执行了一下操作
tsm: TSMSERVER>update node CWORACLE maxnummp=2
成功
但是今天早上来看备份日志又发现了报错信息
ANS0326E: This node has exceeded its maximum number of mount points.
请问那位大哥可以指点一下小弟，万分感谢！