ocr磁盤組故障怎么辦

本篇文章給大家分享的是有關ocr磁盤組故障怎么辦，小編覺得挺實用的，因此分享給大家學習，希望大家閱讀完這篇文章后可以有所收獲，話不多說，跟著小編一起來看看吧。

ocr磁盤組故障
1，有自動備份，恢復
dd命令復制
首先備份
 dd if=/dev/raw/raw1 of=/home/grid/voting.2017
恢復
 dd if=/home/oracle/voting.2017 of=/dev/raw/raw1
md_backup命令備份磁盤組
asmcmd -p
md_backup /home/grid/ocrvote2.bak -G OCR

手工導出
 ./ocrconfig -export /home/grid/ocr2.bak

2、模擬損壞
 dd if=/dev/zero of=/dev/raw/raw1 bs=8192 count=12800
 報錯
 [grid@rac1 rac1]$ ocrcheck
PROT-602: Failed to retrieve data from the cluster registry
PROC-26: Error while accessing the physical storage
集群狀態正常
[grid@rac1 rac1]$ crsctl check crs
CRS-4638: Oracle High Availability Services is online
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
2017-10-07 16:19:38.269:
[/u01/app/11.2.0/grid/bin/orarootagent.bin(3040)]CRS-5822:Agent '/u01/app/11.2.0/grid/bin/orarootagent_root' disconnected from server. Details at (:CRSAGF00117:) {0:3:307} in /u01/app/11.2.0/grid/log/rac1/agent/crsd/orarootagent_root/orarootagent_root.log.
2017-10-07 16:19:38.274:
[/u01/app/11.2.0/grid/bin/scriptagent.bin(17425)]CRS-5822:Agent '/u01/app/11.2.0/grid/bin/scriptagent_grid' disconnected from server. Details at (:CRSAGF00117:) {0:13:3} in /u01/app/11.2.0/grid/log/rac1/agent/crsd/scriptagent_grid/scriptagent_grid.log.
2017-10-07 16:19:38.287:
[/u01/app/11.2.0/grid/bin/oraagent.bin(3036)]CRS-5822:Agent '/u01/app/11.2.0/grid/bin/oraagent_grid' disconnected from server. Details at (:CRSAGF00117:) {0:1:7} in /u01/app/11.2.0/grid/log/rac1/agent/crsd/oraagent_grid/oraagent_grid.log.
2017-10-07 16:19:38.298:
[/u01/app/11.2.0/grid/bin/oraagent.bin(3272)]CRS-5822:Agent '/u01/app/11.2.0/grid/bin/oraagent_oracle' disconnected from server. Details at (:CRSAGF00117:) {0:11:843} in /u01/app/11.2.0/grid/log/rac1/agent/crsd/oraagent_oracle/oraagent_oracle.log.
2017-10-07 16:19:38.305:
[ohasd(2103)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac1'.
2017-10-07 16:19:39.738:
[crsd(17471)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/app/11.2.0/grid/log/rac1/crsd/crsd.log.
2017-10-07 16:19:39.757:
[crsd(17471)]CRS-0804:Cluster Ready Service aborted due to Oracle Cluster Registry error [PROC-26: Error while accessing the physical storage
]. Details at (:CRSD00111:) in /u01/app/11.2.0/grid/log/rac1/crsd/crsd.log.
2017-10-07 16:19:44.785:
[ohasd(2103)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac1'.
2017-10-07 16:19:46.138:
[crsd(17484)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/app/11.2.0/grid/log/rac1/crsd/crsd.log.
2017-10-07 16:19:46.147:
[crsd(17484)]CRS-0804:Cluster Ready Service aborted due to Oracle Cluster Registry error [PROC-26: Error while accessing the physical storage
]. Details at (:CRSD00111:) in /u01/app/11.2.0/grid/log/rac1/crsd/crsd.log.
2017-10-07 16:19:48.171:
[ctssd(2629)]CRS-2407:The new Cluster Time Synchronization Service reference node is host rac1.
2017-10-07 16:19:51.185:
[ohasd(2103)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac1'.
2017-10-07 16:19:51.303:
[cssd(2549)]CRS-1625:Node rac2, number 2, was manually shut down
查看自動備份
 ./ocrconfig -showbackup
檢查
crsctl check crs
crsctl query css votedisk
ocrcheck

3、恢復（root用戶下）
所有節點停止crs
./crsctl stop crs -f
./crsctl stop has -f
./crsctl disable has
./crsctl disable crs--關閉開機重啟

crsctl start crs -excl
以獨占的方式打開crs
crsctl start crs -excl -nocrs
創建磁盤組
select name ,COMPATIBILITY from v$asm_diskgroup;
create diskgroup ocr external redundancy DISK '/dev/raw/raw1' ATTRIBUTE 'compatible.asm'='11.2.0.0.0';

drop diskgroup ocr force including contents;
ocrconfig -restore /u01/app/11.2.0/grid/cdata/rac-cluster/backup_20171007_153630.ocr
./ocrconfig -restore /u01/app/11.2.0/grid/cdata/rac-cluster/backup00.ocr

執行ocrcheck

是否需要恢復votingdisk
恢復表決磁盤
./crsctl replace votedisk +OCR


停止獨占模式運行的clusterware

crsctl stop crs -f

所有節點正常啟動crs
crsctl start crs


CVU驗證所有RAC節點OCR的完整性
 cluvfy comp ocr -n all -verbose

以上就是ocr磁盤組故障怎么辦，小編相信有部分知識點可能是我們日常工作會見到或用到的。希望你能通過這篇文章學到更多知識。更多詳情敬請關注億速云行業資訊頻道。