ocr的备份恢复，模拟OCR磁盘组损坏

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ocr的备份恢复，模拟OCR磁盘组损坏操作系统版本： readhat 6.4 数据库版本： 11203 1.查看集群状态 [root@rac1 ~]# /oracle/app/grid/11.2.0/bin/crsctl stat res -t -------------------------------------------------------------------------------- NAME TARGET STATE SERVER STATE_DETAILS -------------------------------------------------------------------------------- Local Resources -------------------------------------------------------------------------------- ora.ARC.dg ONLINE ONLINE rac1 ONLINE ONLINE rac2 ora.DATADG01.dg ONLINE ONLINE rac1 ONLINE ONLINE rac2 ora.DATADG02.dg ONLINE ONLINE rac1 ONLINE ONLINE rac2 ora.LISTENER.lsnr ONLINE OFFLINE rac1 ONLINE ONLINE rac2 ora.VOTE.dg ONLINE ONLINE rac1 ONLINE ONLINE rac2 ora.asm ONLINE ONLINE rac1 Started ONLINE ONLINE rac2 Started ora.gsd OFFLINE OFFLINE rac1 OFFLINE OFFLINE rac2 ora.net1.network ONLINE ONLINE rac1 ONLINE ONLINE rac2 ora.ons ONLINE ONLINE rac1 ONLINE ONLINE rac2 -------------------------------------------------------------------------------- Cluster Resources -------------------------------------------------------------------------------- ora.LISTENER_SCAN1.lsnr 1 ONLINE ONLINE rac2 ora.cvu 1 ONLINE ONLINE rac2 ora.oc4j 1 ONLINE ONLINE rac1 ora.orcl.db 1 ONLINE ONLINE rac1 Open 2 ONLINE ONLINE rac2 Open ora.rac1.vip 1 ONLINE ONLINE rac1 ora.rac2.vip 1 ONLINE ONLINE rac2 ora.scan1.vip 1 ONLINE ONLINE rac2 2.查看ocr的备份，和手工备份，紧急情况下没有ocr的备份也不要紧，在$CRS_HOME的cdata目录下有ocr的自动备份，默认每天和每周都会保存的，只要没做过架构变更，都一直可用。 [root@rac1 cdata]# pwd /oracle/app/grid/11.2.0/cdata [root@rac1 cdata]# ls -lrt 总用量 2852 drwxr-xr-x 2 grid oinstall 4096 1月 17 2016 localhost drwxr-xr-x 2 grid oinstall 4096 1月 17 2016 rac1 -rw------- 1 root oinstall 272756736 9月 5 07:36 rac1.olr drwxrwxr-x 2 grid oinstall 4096 9月 5 07:37 rac-cluster 查看ocr磁盘组的未知和votingdisk的位置。 [root@rac1 cdata]# /oracle/app/grid/11.2.0/bin/ocrcheck Status of Oracle Cluster Registry is as follows : Version : 3 Total space (kbytes) : 262120 Used space (kbytes) : 2904 Available space (kbytes) : 259216 ID : 635069277 Device/File Name : +VOTE Device/File integrity check succeeded Device/File not configured Device/File not configured Device/File not configured Device/File not configured Cluster registry integrity check succeeded Logical corruption check succeeded [root@rac1 cdata]# /oracle/app/grid/11.2.0/bin/crsctl query css votedisk ## STATE File Universal Id File Name Disk group -- ----- ----------------- --------- --------- 1. ONLINE 956b16ceaff14f4ebf37414725a67350 (/dev/asm-diskb) [VOTE] 2. ONLINE adb3a38f36514f2bbfcaa798303df4a1 (/dev/asm-diskc) [VOTE] 3. ONLINE aa9bfeef2ddd4f01bf212f8e020cd040 (/dev/asm-diskd) [VOTE] 查看OCR备份的位置和情况查看自动备份： ocrconfig -showbackup auto 查看手工备份： ocrconfig -showbackup manual 显示的备份全是系统自动备份ocr的备份，最下面的PROT-25提示没有手动的备份 [root@rac1 cdata]# /oracle/app/grid/11.2.0/bin/ocrconfig -showbackup rac1 2019/09/05 07:37:35 /oracle/app/grid/11.2.0/cdata/rac-cluster/backup00.ocr rac1 2019/09/05 03:37:34 /oracle/app/grid/11.2.0/cdata/rac-cluster/backup01.ocr rac1 2019/09/04 16:44:33 /oracle/app/grid/11.2.0/cdata/rac-cluster/backup02.ocr rac1 2019/09/04 16:44:33 /oracle/app/grid/11.2.0/cdata/rac-cluster/day.ocr rac1 2019/09/04 16:44:33 /oracle/app/grid/11.2.0/cdata/rac-cluster/week.ocr PROT-25: Manual backups for the Oracle Cluster Registry are not available 查看ASM SPFILE的存储位置： [root@rac1 cdata]# su - grid [grid@rac1 ~]$ asmcmd ASMCMD> spget +VOTE/rac-cluster/asmparameterfile/registry.253.901344197 开始操作 1.做好ocr的手工备份 [root@rac1 rac-cluster]# /oracle/app/grid/11.2.0/bin/ocrconfig -export /home/oracle/ocr.bak 2.备份ASM的参数文件 su - grid sqlplus / as sysasm create pfile='/home/grid/initasm.ora' from spfile; 3.dd原来的OCR磁盘组中的磁盘，重建OCR磁盘组 [root@rac1 oracle]# dd if=/dev/zero of=/dev/asm-diskb bs=1024 count=1000 [root@rac1 oracle]# dd if=/dev/zero of=/dev/asm-diskc bs=1024 count=1000 [root@rac1 oracle]# dd if=/dev/zero of=/dev/asm-diskd bs=1024 count=1000 4. 2个节点关闭数据库和集群节点1 [root@rac1 oracle]# /oracle/app/grid/11.2.0/bin/crsctl stop crs 节点2 [root@rac2 ~]# /oracle/app/grid/11.2.0/bin/crsctl stop crs 5.以独占模式（NOCRS模式）启动节点1 GRID组件--只在节点1执行 [root@rac1 oracle]# /oracle/app/grid/11.2.0/bin/crsctl start crs -excl -nocrs 6.查看日志集群alert日志 [cssd(3150)]CRS-1601:CSSD Reconfiguration complete. Active nodes are rac1 . 2019-09-05 04:15:10.314 [ctssd(3192)]CRS-2407:The new Cluster Time Synchronization Service reference node is host rac1. 2019-09-05 04:15:10.315 [ctssd(3192)]CRS-2401:The Cluster Time Synchronization Service started on host rac1. 2019-09-05 04:15:19.173 [/oracle/app/grid/11.2.0/bin/oraagent.bin(3071)]CRS-5011:Check of resource "+ASM" failed: details at "(:CLSN00006:)" in "/oracle/app/grid/11.2.0/log/rac1/agent/ohasd/oraagent_grid/oraagent_grid.log" 2019-09-05 04:15:21.828 [/oracle/app/grid/11.2.0/bin/oraagent.bin(3071)]CRS-5011:Check of resource "+ASM" failed: details at "(:CLSN00006:)" in "/oracle/app/grid/11.2.0/log/rac1/agent/ohasd/oraagent_grid/oraagent_grid.log" 2019-09-05 04:15:31.212 [/oracle/app/grid/11.2.0/bin/oraagent.bin(3071)]CRS-5019:All OCR locations are on ASM disk groups [VOTE], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/oracle/app/grid/11.2.0/log/rac1/agent/ohasd/oraagent_grid/oraagent_grid.log". [grid@rac1 rac1]$ crsctl stat res -t -init -------------------------------------------------------------------------------- NAME TARGET STATE SERVER STATE_DETAILS -------------------------------------------------------------------------------- Cluster Resources -------------------------------------------------------------------------------- ora.asm 1 ONLINE INTERMEDIATE rac1 OCR not started ora.cluster_interconnect.haip 1 ONLINE ONLINE rac1 ora.crf 1 OFFLINE OFFLINE ora.crsd 1 OFFLINE OFFLINE ora.cssd 1 ONLINE ONLINE rac1 ora.cssdmonitor 1 ONLINE ONLINE rac1 ora.ctssd 1 ONLINE ONLINE rac1 ACTIVE:0 ora.diskmon 1 OFFLINE OFFLINE ora.evmd 1 OFFLINE OFFLINE ora.gipcd 1 ONLINE ONLINE rac1 ora.gpnpd 1 ONLINE ONLINE rac1 ora.mdnsd 1 ONLINE ONLINE rac1 7. 创建新的磁盘组节点1操作 su - grid sqlplus / as sysasm set line 200 pages 999 col name for a15 col compatibility for a15 select inst_id,group_number,name,allocation_unit_size/1024/1024 au_mb,type,state,compatibility,database_compatibility from gv$asm_diskgroup order by 3,1; create diskgroup VOTE normal redundancy disk '/dev/asm-diskb', '/dev/asm-diskc', '/dev/asm-diskd' attribute 'compatible.asm'='11.2.0.0.0'; 8.恢复OCR文件并设置votedisk --节点1操作 root执行 [root@rac1 ~]# /oracle/app/grid/11.2.0/bin/ocrconfig -import /home/oracle/ocr.bak --如果使用的是自动备份，则这里需要使用-restore来替换-import [root@rac1 ~]# /oracle/app/grid/11.2.0/bin/ocrcheck [root@rac1 ~]# /oracle/app/grid/11.2.0/bin/crsctl replace votedisk +VOTE Successful addition of voting disk 6b91880919e64fe3bfc01701f29256d1. Successful addition of voting disk 2a0eef6d3ee64f10bfa2040621cef851. Successful addition of voting disk a063e70967dd4fdcbf3b32e675c3246a. Successfully replaced voting disk group with +VOTE. CRS-4266: Voting file(s) successfully replaced 9.重启集群节点1 [root@rac1 ~]# /oracle/app/grid/11.2.0/bin/crsctl stop crs -f [root@rac1 ~]# /oracle/app/grid/11.2.0/bin/crsctl start crs 节点2 [root@rac2 ~]# /oracle/app/grid/11.2.0/bin/crsctl start crs

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ocr的备份恢复，模拟OCR磁盘组损坏

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