详细描述修改oracle密码。su - oracle
SQL> alter user dbsnmp account unlock identified by oracle;
SQL> alter user sysman account unlock identified by oracle;
如果EM不能用的话需要重建EM
重建EM的步骤如下::
1、如果忘记了ASM的dbsnmp、sysman用户的密码,可以重新设置,执行下面的
SQL> alter user dbsnmp account unlock identified by oracle;
SQL> alter user sysman account unlock identified by oracle;