Oracle Study之--Oracle 11gR2 RAC crs启动故障(CRS-4000)

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！