转帖---SUN系列RAC之四：用逻辑备份还原OCR

最新推荐文章于 2017-01-19 16:09:00 发布

转载最新推荐文章于 2017-01-19 16:09:00 发布 · 99 阅读

本文提供了一套详细的步骤来解决Oracle RAC环境中OCR(Oracle Cluster Registry)损坏的问题。从备份OCR开始，到停止CRS(Critical Resource Service)，再到还原OCR备份并重启CRS，最后验证OCR的一致性。过程中还涉及到了处理节点监听状态未知的问题。

步骤：

0 请在做以下动作前作一次OCR的有效逻辑备份
1 找到一个最新的OCR逻辑备份
2 停止所有节点的CRS : # crsctl stop crs
3 还原OCR逻辑备份 : # ocrconfig -import /u01/app/oracle/hotocr090308
4 在所有节点上启动CRS
5 检查OCR一致性 $ cluvfy comp ocr -n all

0 略
1 略
2 停止所有节点的CRS[root@rac1 ~]#
[root@rac1 ~]# cd /u01/app/oracle/product/10.2.0/crs_1
[root@rac1 crs_1]# ./crsctl stop crs
-bash: ./crsctl: No such file or directory
[root@rac1 crs_1]# cd bin
[root@rac1 bin]# ./crsctl stop crs
Stopping resources.
Successfully stopped CRS resources
Stopping CSSD.
Shutting down CSS daemon.
Shutdown request successfully issued.
[root@rac1 bin]#

节点2略

[root@rac1 bin]# su - oracle
rac1->
rac1-> crs_stat -t
CRS-0184: Cannot communicate with the CRS daemon.

rac1->

3 还原OCR逻辑备份[root@rac1 ~]# cd /u01/app/oracle/product/10.2.0/crs_1
[root@rac1 crs_1]# cd bin
[root@rac1 bin]# ./ocrconfig -import /u01/app/oracle/hotocr090308
[root@rac1 bin]#

4 在所有节点上启动CRS[root@rac1 bin]# ./crsctl start crs
Attempting to start CRS stack
The CRS stack will be started shortly
[root@rac1 bin]#

[root@rac2 bin]# ./crsctl start crs
Attempting to start CRS stack
The CRS stack will be started shortly
[root@rac2 bin]#

rac1-> crs_stat -t
Name Type Target State Host
------------------------------------------------------------
ora.devdb.db application ONLINE ONLINE rac2
ora....b1.inst application ONLINE ONLINE rac1
ora....b2.inst application ONLINE ONLINE rac2
ora....SM1.asm application ONLINE ONLINE rac1
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....SM2.asm application ONLINE ONLINE rac2
ora....C2.lsnr application ONLINE UNKNOWN rac2
ora.rac2.gsd application ONLINE ONLINE rac2
ora.rac2.ons application ONLINE ONLINE rac2
ora.rac2.vip application ONLINE ONLINE rac2
rac1->

注意到node2上的监听状态为UNKNOWN，需要处理一下。

为了步骤地紧凑性，这个问题的解决方法随后补充。

5 检查OCR一致性rac1-> cluvfy comp ocr -n all

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.
rac1->