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10gRac_restore_ocr

时间:2021-07-01 10:21:17 帮助过:29人阅读

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

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