系统环境：

    操作系统：RedHat EL5

    Cluster：  Oracle 11gR2 Grid

    Oracle：   Oracle 11gR2 

在启动一个node的CRS时出现以下错误，错误现象：

查看错误原因：

1、主机名

[root@node1 node1]# hostname
node1

2、查看hosts文件

[root@node1 node1]# cat /etc/hosts# Do not remove the following line, or various programs# that require network functionality will fail.

1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

   127.0.0.1        localhost   ::1             localhost6.localdomain6 localhost6   192.168.8.21    wqy1   10.10.10.101    wqy1-priv   192.168.8.23  wqy1-vip       192.168.8.22    wqy2   10.10.10.102    wqy2-priv   192.168.8.24  wqy2-vip       192.168.8.25  rac-scan       192.168.8.26    wqy3   10.10.10.103    wqy3-priv   192.168.8.27  wqy3-vip

从以上可以了解，主机名应该为wqy1，应该是主机名错误，导致CRS启动失败！

3、重新修改主机名

[root@node1 node1]# vi /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=wqy1

[root@node1 node1]# hostname wqy1

4、重新启动CRS service

[root@wqy1 ~]# crsctl start crs
CRS-4123: Oracle High Availability Services has been started.

[root@wqy1 ~]# crsctl check crs
CRS-4638: Oracle High Availability Services is online
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online

---至此，问题得以解决！

本文转自 客居天涯 51CTO博客，原文链接：http://blog.51cto.com/tiany/1663221，如需转载请自行联系原作者