Oracle 11g RAC关机 开机操作步骤

首先关闭防火墙iptables -F 两台都要操作

CRS-4639: Could not contactOracle High Availability Services

原因，crs没有启动
方法1、oracle中的bug，
启动之前需要执行
/bin/dd if=/var/tmp/.oracle/npohasd of=/dev/null bs=1024 count=1   （如果想让重启能够执行，需要加入rc.local中，两个节点）
然后再执行
[root@rac2 bin]# ./crsctl start crs

所以在启动CRS之前，先在2个节点指定dd命令：

[root@rac1 client]#/bin/ddif=/var/tmp/.oracle/npohasd of=/dev/null bs=1024 count=1

 

然后启动，这没有问题了：

[root@rac1 bin]# ./crsctlstart crs

CRS-4123: Oracle High AvailabilityServiceshas been started.

 

[root@rac2 bin]# ./crsctlstart crs

CRS-4123: Oracle High AvailabilityServiceshas been started.

 

[root@rac2 bin]#./crsctl check crs

CRS-4638: Oracle High AvailabilityServicesis online

CRS-4535: Cannot communicate withClusterReady Services

CRS-4530: Communications failurecontactingCluster Synchronization Services daemon

CRS-4534: Cannotcommunicate with EventManager

 

[root@rac1 bin]# ./crsctlcheck crs

CRS-4638: Oracle High AvailabilityServicesis online

CRS-4535: Cannot communicate withClusterReady Services

CRS-4530: Communications failurecontactingCluster Synchronization Services daemon<