新手求指教Db2v9.5 DPF问题

安装DB2完毕后，
cat /home/db2inst1/sqllib/db2nodes.cfg
结果是： 0 WASAndDB 0

此时，cat /etc/services | grep DB2
结果是：  DB2_db2inst1    60000/tcp
               DB2_db2inst1_1  60001/tcp
               DB2_db2inst1_2  60002/tcp
               DB2_db2inst1_END        60003/tcp
su db2inst1后，执行db2start没问题

然后，我修改了 /home/db2inst1/sqllib/db2nodes.cfg
改成： 0 WASAndDB 0
       1 WASAndDB 1
       2 WASAndDB 2
       3 WASAndDB 3  保存，退出
然后 su db2inst1后，再执行 db2start就报错了，错误如下：
11/19/2015 06:59:46 0 0 SQL6048N  A communication error occurred during START or STOP DATABASE MANAGER processing.
11/19/2015 06:59:47 1 0 SQL6048N  A communication error occurred during START or STOP DATABASE MANAGER processing.
11/19/2015 06:59:48 2 0 SQL6048N  A communication error occurred during START or STOP DATABASE MANAGER processing.
11/19/2015 06:59:49 3 0 SQL6048N  A communication error occurred during START or STOP DATABASE MANAGER processing.
SQL1032N  No start database manager command was issued.  SQLSTATE=57019