Oracle Study之--AIX RAC下OCR磁盘故障（PROT-602）
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* Welcome to AIX Version 5.3! *
* *
* Please see the README file in /usr/lpp/bos for information pertinent to *
* this release of the AIX Operating System. *
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故障现象：
[root@aix208 /]#crsctl check crs
Failure 1 contacting CSS daemon
Cannot communicate with CRS
EVM appears healthy
[root@aix208 /]#ocrcheck
PROT-602: Failed to retrieve data from the cluster registry
----OCR disk被用户误删除 ！
解决方法：
通过ocrconfig工具恢复：
[root@aix208 /]#ocrconfig
Name:
ocrconfig - Configuration tool for Oracle Cluster Registry.
Synopsis:
ocrconfig [option]
option:
-export
- Export cluster register contents to a file
-import
-upgrade [
- Upgrade cluster registry from previous version
-downgrade [-version
- Downgrade cluster registry to the specified version
-backuploc
-showbackup - Show backup information
-restore
-replace ocr|ocrmirror [
-overwrite - Overwrite OCR configuration on disk
-repair ocr|ocrmirror
-help - Print out this help information
Note:
A log file will be created in
$ORACLE_HOME/log/
you have file creation privileges in the above directory before
running this tool.
1) 通过repair修复
[root@aix208 /]#ocrconfig -repair ocr
[root@aix208 /]#ocrcheck
PROT-601: Failed to initialize ocrcheck
查看ocr设备文件：
[root@aix208 /]#ls -l /dev |grep ocr
brw-rw---- 1 oracle dba 123, 1 Feb 24 14:54 rac_ocr
brw-rw---- 1 root system 123, 20 Feb 25 12:01 rac_ocr2
crw-r----- 1 root dba 123, 1 Feb 25 12:16 rrac_ocr
-rw-r--r-- 1 root system 139264000 Feb 22 13:50 rrac_ocr1
crw-rw---- 1 oracle dba 123, 20 Feb 25 12:16 rrac_ocr2
[root@aix208 /]#ocrconfig -repair ocr /dev/rrac_ocr
[root@aix208 /]#ocrcheck
PROT-601: Failed to initialize ocrcheck
[root@aix208 /]#ocrconfig -replace ocr /dev/rrac_ocr
PROT-1: Failed to initialize ocrconfig
2）通过ocr备份修复：
[root@aix208 /]#ocrconfig -showbackup
查看备份数据：
[root@aix208 /]#cd /u01/crs_1/cdata/crs
[root@aix208 crs]#ls
backup00.ocr day.ocr week.ocr
[root@aix208 crs]#ls -l
total 20256
-rw-r--r-- 1 root system 3457024 Feb 25 11:48 backup00.ocr
-rw-r--r-- 1 root system 3457024 Feb 25 11:48 day.ocr
-rw-r--r-- 1 root system 3457024 Feb 25 11:48 week.ocr
[root@aix208 crs]#ls -lt
total 20256
-rw-r--r-- 1 root system 3457024 Feb 25 11:48 week.ocr
-rw-r--r-- 1 root system 3457024 Feb 25 11:48 day.ocr
-rw-r--r-- 1 root system 3457024 Feb 25 11:48 backup00.ocr
通过备份，使用restore工具修复：
[root@aix208 crs]#ocrconfig -restore /u01/crs_1/cdata/crs/day.ocr
[root@aix208 crs]#ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 130984
Used space (kbytes) : 3252
Available space (kbytes) : 127732
ID : 133619783
Device/File Name : /dev/rrac_ocr
Device/File integrity check succeeded
Device/File not configured
Cluster registry integrity check succeeded
[root@aix208 crs]#crsctl check crs
CSS appears healthy
CRS appears healthy
EVM appears healthy
[root@aix208 crs]#crs_stat -t
Name Type Target State Host
------------------------------------------------------------
ora....07.lsnr application ONLINE ONLINE aix207
ora.aix207.gsd application ONLINE ONLINE aix207
ora.aix207.ons application ONLINE ONLINE aix207
ora.aix207.vip application ONLINE ONLINE aix207
ora....08.lsnr application ONLINE ONLINE aix208
ora.aix208.gsd application ONLINE ONLINE aix208
ora.aix208.ons application ONLINE ONLINE aix208
ora.aix208.vip application ONLINE ONLINE aix208
ora.prod.db application ONLINE ONLINE aix207
ora....d1.inst application ONLINE ONLINE aix207
ora....d2.inst application ONLINE OFFLINE aix208
------ 修复成功！！！