本篇内容主要讲解“RAC中怎么备份与恢复OCR”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“RAC中怎么备份与恢复OCR”吧!
1停所有节点crs
crsctl stop crs
2备份OCR（导出方式）root用户执行
ocrconfig -export /tmp/ocr.exp
3启动crs并破坏OCR内容
crsctl start crs
dd if=/dev/zero f=/dev/raw/raw1 bs=1024 count=102400
4检查OCR(ocrcheck,cluvfy)，此时crs已经自动关闭
[root@rac1 cluvfy]# ocrcheck
PROT-601: Failed to initialize ocrcheck
[root@rac1 cluvfy]# ./runcluvfy.sh comp ocr
Verifying OCR integrity
Checking OCR integrity...
Checking the absence of a non-clustered configuration...
All nodes free of non-clustered, local-only configurations.
ERROR:
Unable to obtain OCR integrity details from any of the nodes.
OCR integrity check Failed.
Verification of OCR integrity was unsuccessful on all the nodes.
5恢复OCR（导入方式）root用户执行
ocrconfig -import /tmp/ocr.exp
6再次检查OCR(ocrcheck,cluvfy)
[root@rac1 tmp]# ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 104344
Used space (kbytes) : 4348
Available space (kbytes) : 99996
ID : 990580844
Device/File Name : /dev/raw/raw1
Device/File integrity check succeeded
Device/File not configured
Cluster registry integrity check succeeded
[root@rac1 cluvfy]# ./runcluvfy.sh comp ocr
Verifying OCR integrity
Checking OCR integrity...
Checking the absence of a non-clustered configuration...
All nodes free of non-clustered, local-only configurations.
Uniqueness check for OCR device passed.
Checking the version of OCR...
OCR of correct Version "2" exists.
Checking data integrity of OCR...
Data integrity check for OCR passed.
OCR integrity check passed.
Verification of OCR integrity was successful.
7启动crs所有资源并检查状态是否正常
[root@rac1 cluvfy]# crs_start -all
[root@rac1 cluvfy]# crs_stat -t
此时所有资源及服务应当全部启动，恢复正常。
到此，相信大家对“RAC中怎么备份与恢复OCR”有了更深的了解，不妨来实际操作一番吧！这里是编程之家网站，更多相关内容可以进入相关频道进行查询，关注我们，继续学习！
