哈哈，刚说最后一篇，闲的无聊又搞了个测试。

环境：

OS:redhat 5.8

DB:Oracle 10.2.0.5 raw device

我们要养成经常备份ocr跟votedisk的习惯。但是ocr跟votedisk没有备份也是可以重建的。就像控制文件。但是过程较为麻烦。以下为详细步骤：

首先备份ocr跟votedisk：

[root@rac1 ~]#

[root@rac1 ~]# ocrcheck

Status of Oracle Cluster Registry is as follows :

Version : 2

Total space (kbytes) : 1048296

Used space (kbytes) : 3292

Available space (kbytes) : 1045004

ID : 1891074113

Device/File Name : /dev/raw/raw1

Device/File integrity check succeeded

Device/File Name : /dev/raw/raw2

Device/File integrity check succeeded

Cluster registry integrity check succeeded

[root@rac1 ~]# crsctl qeury css votedisk

Unknown parameter: qeury

[root@rac1 ~]# crsctl query css votedisk

0. 0 /dev/raw/raw3

1. 0 /dev/raw/raw4

2. 0 /dev/raw/raw5

[root@rac1 ~]# dd if=/dev/raw/raw3 of=/opt/votedisk.bak

2097152+0 records in

2097152+0 records out

1073741824 bytes (1.1 GB) copied, 462.285 seconds, 2.3 MB/s

[root@rac1 ~]# ocrconfig -export /opt/ocr.bak

[root@rac1 ~]# cd /opt/

[root@rac1 opt]# ls

ocr.bak ORCLfmap votedisk.bak删除配置:

[root@rac1 install]# ./rootdelete.sh

Shutting down Oracle Cluster Ready Services (CRS):

Stopping resources. This could take several minutes.

Error while stopping resources. Possible cause: CRSD is down.

Shutdown has begun. The daemons should exit soon.

Checking to see if Oracle CRS stack is down...

Oracle CRS stack is not running.

Oracle CRS stack is down now.

Removing script for Oracle Cluster Ready services

Updating ocr file for downgrade

Cleaning up SCR settings in '/etc/oracle/scls_scr'

Cleaning up Network socket directories

[root@rac2 install]# ./rootdelete.sh

Shutting down Oracle Cluster Ready Services (CRS):

Stopping resources. This could take several minutes.

Error while stopping resources. Possible cause: CRSD is down.

Shutdown has begun. The daemons should exit soon.

Checking to see if Oracle CRS stack is down...

Oracle CRS stack is not running.

Oracle CRS stack is down now.

Removing script for Oracle Cluster Ready services

Updating ocr file for downgrade

Cleaning up SCR settings in '/etc/oracle/scls_scr'

Cleaning up Network socket directories

在安装节点执行：

[root@rac1 install]# ./rootdeinstall.sh

Removing contents from OCR mirror device

2560+0 records in

2560+0 records out

10485760 bytes (10 MB) copied, 0.521651 seconds, 20.1 MB/s

Removing contents from OCR device

2560+0 records in

2560+0 records out

10485760 bytes (10 MB) copied, 0.496207 seconds, 21.1 MB/s重跑root脚本：

[root@rac1 crs]# ./root.sh

WARNING: directory '/u01/app/oracle' is not owned by root

WARNING: directory '/u01/app' is not owned by root

WARNING: directory '/u01' is not owned by root

No value set for the CRS parameter CRS_OCR_LOCATIONS. Using Values in paramfile.crs

Checking to see if Oracle CRS stack is already configured

Setting the permissions on OCR backup directory

Setting up NS directories

Oracle Cluster Registry configuration upgraded successfully

WARNING: directory '/u01/app/oracle' is not owned by root

WARNING: directory '/u01/app' is not owned by root

WARNING: directory '/u01' is not owned by root

Successfully accumulated necessary OCR keys.

Using ports: CSS=49895 CRS=49896 EVMC=49898 and EVMR=49897.

node :

node 1: rac1 rac1-priv rac1

node 2: rac2 rac2-priv rac2

Creating OCR keys for user 'root', privgrp 'root'..

Operation successful.

Now formatting voting device: /dev/raw/raw3

Now formatting voting device: /dev/raw/raw4

Now formatting voting device: /dev/raw/raw5

Format of 3 voting devices complete.

Startup will be queued to init within 30 seconds.

Adding daemons to inittab

Expecting the CRS daemons to be up within 600 seconds.

CSS is active on these nodes.

rac1

CSS is inactive on these nodes.

rac2

Local node checking complete.

Run root.sh on remaining nodes to start CRS daemons.

[root@rac2 crs]# ./root.sh

WARNING: directory '/u01/app/oracle' is not owned by root

WARNING: directory '/u01/app' is not owned by root

WARNING: directory '/u01' is not owned by root

No value set for the CRS parameter CRS_OCR_LOCATIONS. Using Values in paramfile.crs

Checking to see if Oracle CRS stack is already configured

Setting the permissions on OCR backup directory

Setting up NS directories

Oracle Cluster Registry configuration upgraded successfully

WARNING: directory '/u01/app/oracle' is not owned by root

WARNING: directory '/u01/app' is not owned by root

WARNING: directory '/u01' is not owned by root

clscfg: EXISTING configuration version 3 detected.

clscfg: version 3 is 10G Release 2.

Successfully accumulated necessary OCR keys.

Using ports: CSS=49895 CRS=49896 EVMC=49898 and EVMR=49897.

node :

node 1: rac1 rac1-priv rac1

node 2: rac2 rac2-priv rac2

clscfg: Arguments check out successfully.

NO KEYS WERE WRITTEN. Supply -force parameter to override.

-force is destructive and will destroy any previous cluster

configuration.

Oracle Cluster Registry for cluster has already been initialized

Startup will be queued to init within 30 seconds.

Adding daemons to inittab

Expecting the CRS daemons to be up within 600 seconds.

CSS is active on these nodes.

rac1

rac2

CSS is active on all nodes.

Waiting for the Oracle CRSD and EVMD to start

Oracle CRS stack installed and running under init(1M)

Running vipca(silent) for configuring nodeapps

Invalid syntax used for option "nodevips". Check usage (vipca -help) for proper syntax.

配置VIP

[root@rac2 crs]# oifcfg getif

[root@rac2 crs]# oifcfg iflist

eth0 192.168.56.0

eth1 192.168.11.0

[root@rac2 crs]# oifcfg setif -global eth0/192.168.56.0:public

[root@rac2 crs]# oifcfg setif -global eht1/192.168.11.0:cluster_interconnect

[root@rac2 crs]# oifcfg getif

eth0 192.168.56.0 global public

eht1 192.168.11.0 global cluster_interconnect

运行vipca配置VIP

查看结果：

[root@rac1 crs]# crs_stat -t

Name Type Target State Host

------------------------------------------------------------

ora.rac1.gsd application ONLINE ONLINE rac1

ora.rac1.ons application ONLINE ONLINE rac1

ora.rac1.vip application ONLINE ONLINE rac1

ora.rac2.gsd application ONLINE ONLINE rac2

ora.rac2.ons application ONLINE ONLINE rac2

ora.rac2.vip application ONLINE ONLINE rac2

配置监听：

[root@rac1 admin]# mv listener.ora listener.ora.bak

[root@rac2 admin]# mv listener.ora listener.ora.bak

使用netca创建监听

[root@rac1 admin]# crs_stat -t

Name Type Target State Host

------------------------------------------------------------

ora....C1.lsnr application ONLINE ONLINE rac1

ora.rac1.gsd application ONLINE ONLINE rac1

ora.rac1.ons application ONLINE ONLINE rac1

ora.rac1.vip application ONLINE ONLINE rac1

ora....C2.lsnr application ONLINE ONLINE rac2

ora.rac2.gsd application ONLINE ONLINE rac2

ora.rac2.ons application ONLINE ONLINE rac2

ora.rac2.vip application ONLINE ONLINE rac2将数据库加入CRS：

[oracle@rac1 ~]$ srvctl add database -d zhdb -o $ORACLE_HOME

启动数据库：

srvctl start database -d zhdb

[oracle@rac1 dbs]$ crs_stat -t

Name Type Target State Host

------------------------------------------------------------

ora....C1.lsnr application ONLINE ONLINE rac1

ora.rac1.gsd application ONLINE ONLINE rac1

ora.rac1.ons application ONLINE ONLINE rac1

ora.rac1.vip application ONLINE ONLINE rac1

ora....C2.lsnr application ONLINE ONLINE rac2

ora.rac2.gsd application ONLINE ONLINE rac2

ora.rac2.ons application ONLINE ONLINE rac2

ora.rac2.vip application ONLINE ONLINE rac2

ora.zhdb.db application ONLINE ONLINE rac1

ora....b2.inst application ONLINE ONLINE rac2 自此OCR跟Votedisk重建成功