content store连不到数据库

content store在test的时候报错
[Validate Content Manager database connection]
1. [ ERROR ] The database connection failed.
2. [ ERROR ] Content Manager failed to connect to the content store. The connection string is "jdbc:oracle:thin:@abc:1521:c8_new

用的cognos8.2和oracle10g

在做服务器迁移，cognos和oracle都换了新机器，我在新装的cognos机器上连原来的oracle上的content store是test成功的，我把这个库搬到新装的oracle机器上test就报以上错
请问这是什么道理啊？收起