因为crs_start属于应用层的指令，启动crs的时候会失败
[oracle@host1 ~]$ crs_start -all
CRS-0184: Cannot communicate with the CRS daemon.
[oracle@host1 ~]$ crs_stat -t
CRS-0184: Cannot communicate with the CRS daemon.
所以要在集群层启动crs
使用root用户权限执行crsctl
[root@host1 ~]# /oracle/product/crs/bin/crsctl start crs
Attempting to start CRS stack
The CRS stack will be started shortly
然后设置开机自启动
[root@host1 ~]# /oracle/product/crs/bin/crsctl enable crs
[root@host1 ~]# /oracle/product/crs/bin/crsctl check crs
CSS appears healthy
CRS appears healthy
EVM appears healthy
再在oracle 用户下使用crs_stat -t
crs启动失败 crs_start -all CRS-0184: Cannot communicate with the CRS daemon.
原文：http://blog.csdn.net/clark_xu/article/details/19477189