OCR和vd的添加和删除
shahand 20060425
oracle10gR2开始支持OCR和vd的冗余，voting disk的添加删除比较简单，但ocr我在metalink上没有找到有相关的文章，是摸索过来的，其中还试过用dd来复制ocr的数据，结果crs启动失败了，才根据如何备份ocr想到的ocrconfig命令。
一、ocr的添加。
这里只举例使用raw device的情况
(1)停止crs
＃crsctl stop crs
# rsh lxvcs-8 /OraHome/crs/bin/crsctl stop crs
(2)创建mirror ocr设备，vxassist -g ocrdg make ocrvol1 200M
(3)
使用ocrconfig倒出ocr数据
# ocrconfig -export /oradata/ocr.data
(4)
修改文件，添加第二行
#cat /etc/oracle/ocr.loc
ocrconfig_loc=/dev/vx/rdsk/ocrdg/ocrvol
ocrmirrorconfig_loc=/dev/vx/rdsk/ocrdg/ocrvol1
local_
(5)使用ocrconfig向设备中导入数据
#ocrconfig -import /oradata/ocr.data
(6)此步可选，使用ocrcheck检查
# ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 204576
Used space (kbytes) : 2200
Available space (kbytes) : 202376
ID : 1831185259
Device/File Name : /dev/vx/rdsk/ocrdg/ocrvol
Device/File integrity check succeeded
Device/File Name : /dev/vx/rdsk/ocrdg/ocrvol1
Device/File integrity check succeeded
Cluster registry integrity check succeeded
(7)启动crs，可以用#crsctl start crs
(8)检查crs状态crsctl check crs
二、删除mirror比较简单，去掉/注释掉 ocrmirrorconfig_loc这行，删除然后就可以了
三、voting disk 的添加，见下面的例子，
使用crsctl来添加，唯一要注意的是需要指定-force 参数
[root@lxvcs-8 ~]# crsctl check crs
CSS appears healthy
CRS appears healthy
EVM appears healthy
[root@lxvcs-8 ~]#
[root@lxvcs-8 ~]# crsctl query css votedisk
0. 0 /dev/vx/rdsk/ocrdg/vdvol
located 1 votedisk(s).
[root@lxvcs-8 ~]#
[root@lxvcs-8 ~]#
[root@lxvcs-8 ~]# crsctl add css votedisk /dev/vx/rdsk/ocrdg/vdvol1
Cluster is not in a ready state for online disk addition
[root@lxvcs-8 ~]# crsctl add css votedisk /dev/vx/rdsk/ocrdg/vdvol1 -force
Now formatting voting disk: /dev/vx/rdsk/ocrdg/vdvol1
successful addition of votedisk /dev/vx/rdsk/ocrdg/vdvol1.
[root@lxvcs-8 ~]#
[root@lxvcs-8 ~]#
[root@lxvcs-8 ~]#
[root@lxvcs-8 ~]# crsctl query css votedisk
0. 0 /dev/vx/rdsk/ocrdg/vdvol
1. 0 /dev/vx/rdsk/ocrdg/vdvol1
located 2 votedisk(s).
[root@lxvcs-8 ~]#
[root@lxvcs-8 ~]#
[root@lxvcs-8 ~]# crsctl check crs
CSS appears healthy
CRS appears healthy
EVM appears healthy
四、voting disk 的删除，同上，同样需要 -force参数
[root@lxvcs-8 ~]# crsctl query css votedisk
0. 0 /dev/vx/rdsk/ocrdg/vdvol
1. 0 /dev/vx/rdsk/ocrdg/vdvol1
located 2 votedisk(s).
[root@lxvcs-8 ~]# crsctl delete css votedisk /dev/vx/rdsk/ocrdg/vdvol1
Cluster is not in a ready state for online disk removal
[root@lxvcs-8 ~]#
[root@lxvcs-8 ~]# crsctl delete css votedisk /dev/vx/rdsk/ocrdg/vdvol1 -force
successful deletion of votedisk /dev/vx/rdsk/ocrdg/vdvol1.
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