sample 1: add a new cdb 1.for the new db  Aprod please apply two new direcotry in Cdb3/Cdb4/Aprod  50G/Aprodlog 20G Aproddb 目前挂载在Cdb4,相关信息如下: 文件系统:/dev/vg_Aproddb/Aproddb                   52101120   79414 48770357    0% /Aproddb/dev/vg_Aproddblog/Ap…