什么是OCR？

OCR记录节点成员的配置信息,如database、ASM、instance、listener、VIP等CRS资源的配置信息，可存储于裸设备或者群集文件系统上,推荐设置大小为100MB
相关命令：

[oracle@node1 ~]$ ocrcheck
Status of Oracle Cluster Registry is as follows :
         Version                  :          2
         Total space (kbytes)     :     208792
         Used space (kbytes)      :        304
         Available space (kbytes) :     208488
         ID                       :  328236424
         Device/File Name         : /dev/raw/raw2
                                    Device/File integrity check succeeded

                                    Device/File not configured

         Cluster registry integrity check succeeded

[oracle@node1 ~]$