标签：style blog os io 使用 ar for 文件 2014
查看ocr的存放位置
[oracle@rac1 ~]$ ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 262120
Used space (kbytes) : 5432
Available space (kbytes) : 256688
ID : 982267297
Device/File Name : /oradata/crs_data/ocr.dat
Device/File integrity check succeeded
Device/File not configured
Cluster registry integrity check succeeded
ocr每4个小时自动备份一次,我的自动备份位置: /oracle/app/oracle/product/10.2.0/crs/cdata/crs
可以通过命令ocrconfig查看备份
[oracle@rac1 ~]$ ocrconfig -showbackup
rac2 2014/08/25 14:31:15 /oracle/app/oracle/product/10.2.0/crs/cdata/crs
rac2 2014/08/25 10:31:15 /oracle/app/oracle/product/10.2.0/crs/cdata/crs
rac2 2014/08/22 17:46:32 /oracle/app/oracle/product/10.2.0/crs/cdata/crs
rac2 2014/08/25 10:31:15 /oracle/app/oracle/product/10.2.0/crs/cdata/crs
rac2 2014/08/22 17:46:32 /oracle/app/oracle/product/10.2.0/crs/cdata/crs
当前有5组自动备份,oracle最多也会保留5组,backup00.ocr为最近一次备份,day_.ocr为一天之内的备份,week_.ocr为一周之内的备份，当备份恢复ocr时，最好使用最近一组的
模拟ocr损坏,删除掉ocr,使用备份恢复
[oracle@rac1 ~]$ cd /oradata/crs_data
[oracle@rac1 crs_data]$ ls
ocr.dat vote.dat
[oracle@rac1 crs_data]$ rm -f ocr*
再次查看服务,发现crs服务仍然正常,这是因为当前使用的是crs cache
[oracle@rac1 crs_data]$ crs_stat -t
Name Type Target State Host
------------------------------------------------------------
ora....b1.inst application ONLINE ONLINE rac1
ora....b2.inst application ONLINE ONLINE rac2
ora.asmdb.db application ONLINE ONLINE rac1
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 ONLINE rac2
ora.rac2.gsd application ONLINE ONLINE rac2
ora.rac2.ons application ONLINE ONLINE rac2
ora.rac2.vip application ONLINE ONLINE rac2
ora.rawdb.db application ONLINE ONLINE rac1
ora....b1.inst application ONLINE ONLINE rac1
ora....b2.inst application ONLINE ONLINE rac2
ora.test.db application ONLINE ONLINE rac1
ora....t1.inst application ONLINE ONLINE rac1
ora....t2.inst application ONLINE ONLINE rac2
重启crs服务,因为丢失ocr,此时使用命令已经关闭不掉服务了
[root@rac1 oracle]# crsctl stop crs
OCR initialization failed accessing OCR device: PROC-26: Error while accessing the physical storage Operating System error [No such file or directory]
重启服务器
[root@rac1 ~]# reboot
Broadcast message from root (pts/0) (Tue Aug 26 15:13:44 2014):
The system is going down for reboot NOW!
[root@rac2 ~]# reboot
Broadcast message from root (pts/0) (Tue Aug 26 15:14:20 2014):
The system is going down for reboot NOW!
启动crs,虽然提示会启动,却一直没有起来,这时候就要怀疑ocr损坏了
[root@rac1 oracle]# crsctl start crs
Attempting to start CRS stack
The CRS stack will be started shortly
使用ocrcheck命令检查ocr,找不到ocr
[root@rac1 oracle]# ocrcheck
PROT-602: Failed to retrieve data from the cluster registry
使用find命令查找当前备份的ocr，如没有更换ocr自动备份路径，默认在主节点的$CRS_HOME/cdata/crs/下
[oracle@rac1 ~]$ find /oracle -name *.ocr*
/oracle/app/oracle/product/10.2.0/crs/cdata/crs/backup00.ocr
/oracle/app/oracle/product/10.2.0/crs/cdata/crs/day_.ocr
使用备份的ocr进行恢复,ocr可以在线恢复
ocfs的rac,需要先建一个与之前同名的ocr文件,然后再恢复
未建ocr文件,尝试恢复：
[root@rac1 crs]# ocrconfig -restore backup00.ocr
PROT-16: Internal Error
ocr文件名与之前不一样:
[root@rac1 crs]# ocrconfig -restore backup00.ocr
PROT-16: Internal Error
建一个与之前同名的ocr文件，恢复：
[root@rac1 crs]# ocrconfig -restore backup00.ocr
启动crs，查看资源状态
[root@rac1 crs]# crs_stat -t
Name Type Target State Host
------------------------------------------------------------
ora....b1.inst application ONLINE ONLINE rac1
ora....b2.inst application ONLINE ONLINE rac2
ora.asmdb.db 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 ONLINE rac2
ora.rac2.gsd application ONLINE ONLINE rac2
ora.rac2.ons application ONLINE ONLINE rac2
ora.rac2.vip application ONLINE ONLINE rac2
ora.rawdb.db application ONLINE ONLINE rac2
ora....b1.inst application ONLINE ONLINE rac1
ora....b2.inst application ONLINE ONLINE rac2
ora.test.db application ONLINE ONLINE rac2
ora....t1.inst application ONLINE ONLINE rac1
ora....t2.inst application ONLINE ONLINE rac2
ocr的导入导出
手工export ocr,ocr可以在线export
[root@rac1 crs_data]# ocrconfig -export /oradata/crs_data/ocr.dat.bak -s online
export的ocr备份文件,一定要import方式恢复，同样ocfs的rac需要先建立文件
$ ocrconfig -import /oradata/crs_data/ocr.dat.bak
标签：style blog os io 使用 ar for 文件 2014
原文地址：http://www.cnblogs.com/redoracle/p/3952248.html
