Oracle Study之--Oracle 11gR2 RAC crs启动故障(CRS-4000)
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：
# crsctl start crs
Failure at scls_scr_getval with code 1
Internal Error Information:
Category: -2
Operation: opendir
Location: scrsearch1
Other: cant open scr home dir scls_scr_getval
System Dependent Information: 2
CRS-4000: Command Start failed, or completed with errors.
查看错误原因：
1、主机名
# hostname
node1
2、查看hosts文件
# cat /etc/hosts# Do not remove the following line, or various programs# that require network functionality will fail.
[*]127.0.0.1 localhost
::1 localhost6.localdomain6 localhost6
192.168.8.21 wqy1
10.10.10.101 wqy1-priv
192.168.8.23wqy1-vip
192.168.8.22 wqy2
10.10.10.102 wqy2-priv
192.168.8.24wqy2-vip
192.168.8.25rac-scan
192.168.8.26 wqy3
10.10.10.103 wqy3-priv
192.168.8.27wqy3-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
# vi /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=wqy1
# hostname wqy1
4、重新启动CRS service
# crsctl start crs
CRS-4123: Oracle High Availability Services has been started.
# 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！
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