对OCR的修改会同步到节点上OCR的配置文件：ocr.loc。即使在另一个节点的crs关闭的情况下，在启动的时候也会自动更新OCR的变化。
添加语法如下：
# ocrconfig -add +asm_disk_group | file_name
添加完成之后，使用命令验证
#ocrcheck
查看ocr的位置
[root@rac2 ~]# ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 3
Total space (kbytes) : 262120
Used space (kbytes) : 3352
Available space (kbytes) : 258768
ID : 2129345179
Device/File Name : +CRS
Device/File integrity check succeeded
Device/File not configured
Device/File not configured
Device/File not configured
Device/File not configured
Cluster registry integrity check succeeded
查看磁盘组
[grid@rac1 ~]$ kfod op=groups
--------------------------------------------------------------------------------
Group Size Free Redundancy Name
===============================================
1: 10236 Mb 922 Mb EXTERN OGG
2: 5114 Mb 4784 Mb EXTERN FRA
3: 20473 Mb 18208 Mb EXTERN DATA
4: 5114 Mb 4718 Mb EXTERN CRS
将ocr添加到fra
[root@rac1 ~]# ocrconfig -add +fra
验证
[root@rac1 ~]# ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 3
Total space (kbytes) : 262120
Used space (kbytes) : 3352
Available space (kbytes) : 258768
ID : 2129345179
Device/File Name : +CRS
Device/File integrity check succeeded
Device/File Name : +fra
Device/File integrity check succeeded
Device/File not configured
Device/File not configured
Device/File not configured
Cluster registry integrity check succeeded
查看配置文件是否跟新
[root@rac1 ~]# cd /etc/oracle/
[root@rac1 oracle]# cat ocr.loc
#Device/file getting replaced by device +fra
ocrconfig_loc=+CRS
ocrmirrorconfig_loc=+fra
节点2验证
[root@rac2 oracle]# cat ocr.loc
#Device/file getting replaced by device +fra
ocrconfig_loc=+CRS
ocrmirrorconfig_loc=+fra
--检查ASM 文件是否存在
[grid@rac1 ~]$ asmcmd -p
ASMCMD [+fra/rac-cluster/ocrfile] > ls
REGISTRY.255.971178369