安装rac时检查gi过程中遭遇PRVF-5507

系统：rhel 6.5 64位
数据库：oracle 11.2.0.3 64位
环境：rac(双节点)
问题描述：安装rac时，检查gi过程中遭遇PRVF-5507，如下所示：
Network Time Protocol (NTP) - This task verifies cluster time synchronization on clusters that use Network Time Protocol (NTP).  Error: 
 - 
PRVF-5507 : NTP daemon or service is not running on any node but NTP configuration file exists on the following node(s): zhdljdb2,zhdljdb1  - Cause:  The configuration file was found on at least one node though no NTP daemon or service was running.  - Action:  If you plan to use CTSS for time synchronization then NTP configuration must be uninstalled on all nodes of the cluster. 

  Check Failed on Nodes: [zhdljdb2,  zhdljdb1]  
Verification result of failed node: zhdljdb2 

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Verification result of failed node: zhdljdb1 

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异常原因：未配置NTP.
解决过程：
在两个节点关闭ntp，并修改配置文件名.
[root@zhdljdb1 ~]# service ntpd stop
[root@zhdljdb1 ~]# mv /etc/ntp.conf /etc/ntp.conf.bk
结论：修改后该告警不再发生.