摘要： Oracle 11gR2 下RAC 安装后，启动CRS. 错误如下：[root@rac1 bin]# ./crsctl check crsCRS-4638: Oracle High Availability Services is onlineCRS-4535: Cannot communicate with Cluster Ready ServicesCRS-4529: Cluster Synchronization Services is onlineCRS-4533: Event Manager is online从这个错误提示，可以看到是CRS启动失败了。 CRS是关键进程。 它不能启 阅读全文