CRS-0184: Cannot communicate with the CRS daemon.

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在启动rac环境的时候发现2号服务器的crs没有启动

[grid@RAC2 ~]$ crs_stat -v

CRS-0184: Cannot communicate with the CRSdaemon.

[grid@RAC2 ~]$ crsctl check crs

CRS-4638: Oracle High Availability Servicesis online

CRS-4535: Cannot communicate with ClusterReady Services

CRS-4530: Communications failure contactingCluster Synchronization Services daemon

CRS-4533: Event Manager is online

查看共享盘挂载情况：

[root@RAC2 ~]# oracleasm listdisks

[root@RAC2 ~]#

发现共享磁盘没了，那么crs没有启动的原因应该与此有关

那么我们想到要挂载磁盘

[root@RAC2 ~]# oracleasm scandisks

Reloading disk partitions: done

Cleaning any stale ASM disks...

Scanning system for ASM disks...

Instantiating disk "CRS_DISK01"

Unable to instantiate disk"CRS_DISK01"

Instantiating disk "CRS_DISK01"

Unable to instantiate disk"CRS_DISK01"

由于直接挂载会报错，所以需要初始化一下再挂载

那么我们就在/etc/rc.local中添加以下两条

oracleasm init

oracleasm scandisks

重启后这样我们就看到共享磁盘了，并且crs也启动了，数据库也可以顺利启动了

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