10gRac_restore_ocr

客户环境由于存储异常,导致rac挂掉.存储更换盘后需要恢复rac 恢复ocr-存在备份情况 使用ocrconfig查看 # ./ocrconfig -showbackup 没有结果那就去目录下直接看 # cd /oracle/product/10.2.0/crs_1/cdata/crs# ls -ltotal 66976-rw-r--r-- 1 root system 4898

客户环境由于存储异常,导致rac挂掉.存储更换盘后需要恢复rac

• 恢复ocr-存在备份情况

使用ocrconfig查看
# ./ocrconfig -showbackup
没有结果那就去目录下直接看

# cd /oracle/product/10.2.0/crs_1/cdata/crs
# ls -l
total 66976
-rw-r--r--    1 root     system      4898816 Aug 31 06:12 backup00.ocr
-rw-r--r--    1 root     system      4898816 Aug 31 02:12 backup01.ocr
-rw-r--r--    1 root     system      4898816 Aug 30 22:12 backup02.ocr
-rw-r--r--    1 root     system      4898816 Aug 30 02:12 day.ocr
-rw-r--r--    1 root     system      4898816 Aug 31 02:12 day_.ocr
-rw-r--r--    1 root     system      4898816 Aug 21 02:12 week.ocr
-rw-r--r--    1 root     system      4898816 Aug 28 02:12 week_.ocr

修改下权限

# chown oracle:oinstall /dev/rhdisk2
# chown oracle:oinstall /dev/rhdisk3
# chown oracle:oinstall /dev/rhdisk4
# chown oracle:oinstall /dev/rhdisk5
# chown oracle:oinstall /dev/rhdisk6
# chown oracle:oinstall /dev/rhdisk7
# 
# 
# 
# 
# chmod 660 /dev/rhdisk2
# chmod 660 /dev/rhdisk3
# chmod 660 /dev/rhdisk4
# chmod 660 /dev/rhdisk5
# chmod 660 /dev/rhdisk6
# chmod 660 /dev/rhdisk7

ocrconfig恢复

# /oracle/product/10.2.0/crs_1/bin/ocrconfig -restore /oracle/product/10.2.0/crs_1/cdata/crs/backup00.ocr
# cd /oracle/product/10.2.0/crs_1/bin/
# ./ocrcheck
Status of Oracle Cluster Registry is as follows :
         Version                  :          2
         Total space (kbytes)     :     511764
         Used space (kbytes)      :       4620
         Available space (kbytes) :     507144
         ID                       :  517522761
         Device/File Name         : /dev/rhdisk2
                                    Device/File integrity check succeeded
         Device/File Name         : /dev/rhdisk3
                                    Device/File integrity check succeeded
 
         Cluster registry integrity check succeeded
 
# /oracle/product/10.2.0/crs_1/bin/crsctl query css votedisk
 0.     0    /dev/rhdisk4
 1.     0    /dev/rhdisk5
 2.     0    /dev/rhdisk6
 
located 3 votedisk(s).
# /oracle/product/10.2.0/crs_1/bin/crsctl start crs
Attempting to start CRS stack 
The CRS stack will be started shortly

$ crs_stat -t -v
Name           Type           R/RA   F/FT   Target    State     Host        
----------------------------------------------------------------------
ora....SM1.asm application    0/5    0/0    ONLINE    ONLINE    rac1     
ora....V1.lsnr application    0/5    0/0    ONLINE    ONLINE    rac1     
ora....rv1.gsd application    0/5    0/0    ONLINE    ONLINE    rac1     
ora....rv1.ons application    0/3    0/0    ONLINE    ONLINE    rac1     
ora....rv1.vip application    0/0    0/0    ONLINE    ONLINE    rac1     
ora....SM2.asm application    0/5    0/0    ONLINE    ONLINE    rac2     
ora....V2.lsnr application    0/5    0/0    ONLINE    ONLINE    rac2     
ora....rv2.gsd application    0/5    0/0    ONLINE    ONLINE    rac2     
ora....rv2.ons application    0/3    0/0    ONLINE    ONLINE    rac2     
ora....rv2.vip application    0/0    0/0    ONLINE    ONLINE    rac2     
ora.orcl.db    application    0/0    0/1    ONLINE    OFFLINE               
ora....l1.inst application    0/5    0/0    ONLINE    OFFLINE               
ora....l2.inst application    0/5    0/0    ONLINE    OFFLINE               
ora....orcl.cs application    0/0    0/1    ONLINE    OFFLINE               
ora....cl1.srv application    0/0    0/0    ONLINE    OFFLINE               
ora....cl2.srv application    0/0    0/0    ONLINE    OFFLINE

恢复ocr-无备份情况

Execute /install/rootdelete.sh on all nodes
Execute /install/rootdeinstall.sh on the node which is supposed to be the first node
Execute /root.sh on first node
具体参考mos
How to Recreate OCR/Voting Disk Accidentally Deleted (Doc ID 399482.1)

但是这样涉及还是恢复原有的磁盘上,如果要恢复新的磁盘(源磁盘标识符和以前不一样)需要修改/etc/oracle/ocr.loc和/install/paramfile.crs文件里的信息

paramfile.crs:CRS_OCR_LOCATIONS=/dev/rhdisk2,/dev/rhdisk3
paramfile.crs:CRS_VOTING_DISKS=/dev/rhdisk4,/dev/rhdisk5,/dev/rhdisk6

原文地址：10gRac_restore_ocr, 感谢原作者分享。