关于迁移 rac中ocr votedisk

环境：

hpunix

oracle rac 11.2.0.3

 

问题描述：

 

由于用户错误操作，将ocr和votedisk放在+GRID中，现在要将其迁移到+OCR_VOTE中：

 

解决：

 

具体操作如下：（只记录了操作命令）

 

[root@node2 ~]$ /u01/app/11.2.0/grid/bin/ocrcheck

Status of Oracle Cluster Registry is as follows :

         Version                  :          3

         Total space (kbytes)     :     262120

         Used space (kbytes)      :       2992

         Available space (kbytes) :     259128

         ID                       :  601346144

         Device/File Name         :      +GRID

                                    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

         Logical corruption check bypassed due to non-privileged user

 

这里我们看到ocr放在+GRID中了

 

然后Add a new OCR device/file：

 

[root @node2 ~]/u01/app/11.2.0/grid/bin/ocrconfig -add +OCR_VOTE

 

[root @node2 ~]$ /u01/app/11.2.0/grid/bin/ocrcheck

Status of Oracle Cluster Registry is as follows :

         Version                  :          3

         Total space (kbytes)     :     262120

         Used space (kbytes)      :       2992

         Available space (kbytes) :     259128

         ID                       :  601346144

         Device/File Name         :      +GRID

                                    Device/File integrity check succeeded

                                    +OCR_VOTE

                                                                                    Device/File integrity check succeeded

                                    Device/File not configured

                                    Device/File not configured

                                    Device/File not configured

         Cluster registry integrity check succeeded

         Logical corruption check bypassed due to non-privileged user

（这时候ocr并不存在于+OCR_VOTE中）

 

迁移 ocr：

[root @node2 ~]$/u01/app/11.2.0/grid/bin/ocrconfig -replace +GRID -replacement +OCR_VOTE

 

 

然后迁移votedisk：

 

[root @node2 ~]$su - grid

 

[grid @node2 ~]$crsctl replace votedisk +OCR_VOTE

 

查询一下votedisk的存放目录：

 

[grid @node2 ~]$crsctl query css votedisk;

 

查询一下资源状态:

[grid @node2 ~]$crsctl status resource -t

 

然后登录asm查看asmdisk的信息：

 

sqlplus / as sysasm

 

SQL> select group_number,name,state,type from V$asm_diskgroup;

 

SQL> select group_number,name,path from v$asm_disk;

 

注意，此时是无法删除+GRID disk group的因为asm 的参数文件极有可能存放在+GRID中

 

使用命令 show parameter spfile查看路径

如果存放在+GRID中，可以重建spfile：

如下操作：

 

SQL>create pfile='/u01/11.2.0/grid/dbs/asmpfile.ora' from spfile;

 

SQL>create spfile='+OCR_VOTE' from pfile='/u01/11.2.0/grid/dbs/asmpfile.ora';

 

然后使用root用户重启crs即可（当然，如果你很闲，可以尝试修改启动crs时不启动asm，然后修改spfile的存放路径，这个工作量有点大哦！）

 

[root @node2 ~]$/u01/app/11.2.0/grid/bin/crsctl stop crs

 

[root @node2 ~]$/u01/app/11.2.0/grid/bin/crsctl start crs

 

然后再使用grid用户

 

 

su - grid

 

SQL>alter diskgroup OCR_VOTE mount;

 

 

切换root用户

/u01/app/11.2.0/grid/bin/ocrconfig -delete +GRID

 

 

最后删除+GRID（也可以使用asmca删除，注意，如果删除之后再使用GRID中的磁盘时，如果有找不到磁盘等问题，最好使用dd命令清理一下磁盘头，命令：dd if = /dev/zero of=/dev/rdisk/xx count=100，切记dd命令相当危险）

 

SQL>alter diskgroup GRID dismount;

SQL>drop diskgroup GRID including contents;