Oracle RAC OCR备份恢复
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一、OCR物理备份恢复
1、手动备份OCR
[root@lissen-node1 ocr]# ocrconfig -showbackup;
PROT-24: Auto backups for the Oracle Cluster Registry are not available
lissen-node1 2020/02/25 22:46:34 +OCR:/lissen/OCRBACKUP/backup_20200225_224634.ocr.262.1033339595 0
lissen-node1 2020/02/25 22:34:52 +OCR:/lissen/OCRBACKUP/backup_20200225_223452.ocr.261.1033338893 0
lissen-node1 2020/02/25 21:05:47 +OCR:/lissen/OCRBACKUP/backup_20200225_210547.ocr.260.1033333551 0
lissen-node1 2020/02/25 21:03:16 +OCR:/lissen/OCRBACKUP/backup_20200225_210316.ocr.259.1033333397 0
lissen-node1 2020/02/25 21:01:35 +OCR:/lissen/OCRBACKUP/backup_20200225_210135.ocr.258.1033333297 0
[root@lissen-node1 ocr]# ocrconfig -manualbackup;
lissen-node1 2020/02/25 23:07:51 +OCR:/lissen/OCRBACKUP/backup_20200225_230751.ocr.263.1033340873 0
lissen-node1 2020/02/25 22:46:34 +OCR:/lissen/OCRBACKUP/backup_20200225_224634.ocr.262.1033339595 0
lissen-node1 2020/02/25 22:34:52 +OCR:/lissen/OCRBACKUP/backup_20200225_223452.ocr.261.1033338893 0
lissen-node1 2020/02/25 21:05:47 +OCR:/lissen/OCRBACKUP/backup_20200225_210547.ocr.260.1033333551 0
lissen-node1 2020/02/25 21:03:16 +OCR:/lissen/OCRBACKUP/backup_20200225_210316.ocr.259.1033333397
2、检验OCR组件的完整性
[grid@lissen-node1 ~]$ cluvfy comp ocr -n all -verbose;
Verifying OCR Integrity ...PASSED
Verification of OCR integrity was successful.
CVU operation performed: OCR integrity
Date: Feb 25, 2020 11:11:02 PM
CVU home: /u19/app/19.2.0.0.0/grid/
User: grid
3、关闭CRS
crsctl stop crs -f
4、以nocrs排他模式启动CRS(一个节点)
节点1：
[root@lissen-node1 ocr]# crsctl start crs -nocrs -excl
CRS-4123: Oracle High Availability Services has been started.
CRS-2672: Attempting to start 'ora.evmd' on 'lissen-node1'
CRS-2672: Attempting to start 'ora.mdnsd' on 'lissen-node1'
CRS-2676: Start of 'ora.evmd' on 'lissen-node1' succeeded
CRS-2676: Start of 'ora.mdnsd' on 'lissen-node1' succeeded
CRS-2672: Attempting to start 'ora.gpnpd' on 'lissen-node1'
CRS-2676: Start of 'ora.gpnpd' on 'lissen-node1' succeeded
CRS-2672: Attempting to start 'ora.cssdmonitor' on 'lissen-node1'
CRS-2672: Attempting to start 'ora.gipcd' on 'lissen-node1'
CRS-2676: Start of 'ora.cssdmonitor' on 'lissen-node1' succeeded
CRS-2676: Start of 'ora.gipcd' on 'lissen-node1' succeeded
CRS-2672: Attempting to start 'ora.cssd' on 'lissen-node1'
CRS-2672: Attempting to start 'ora.diskmon' on 'lissen-node1'
CRS-2676: Start of 'ora.diskmon' on 'lissen-node1' succeeded
CRS-2676: Start of 'ora.cssd' on 'lissen-node1' succeeded
CRS-2672: Attempting to start 'ora.cluster_interconnect.haip' on 'lissen-node1'
CRS-2672: Attempting to start 'ora.ctssd' on 'lissen-node1'
CRS-2676: Start of 'ora.ctssd' on 'lissen-node1' succeeded
CRS-2676: Start of 'ora.cluster_interconnect.haip' on 'lissen-node1' succeeded
CRS-2672: Attempting to start 'ora.asm' on 'lissen-node1'
CRS-2676: Start of 'ora.asm' on 'lissen-node1' succeeded
5、还原OCR
[root@lissen-node1 ocr]# ocrconfig -showbackup;
PROT-24: Auto backups for the Oracle Cluster Registry are not available
lissen-node1 2020/02/25 23:07:51 +OCR:/lissen/OCRBACKUP/backup_20200225_230751.ocr.263.1033340873 0
lissen-node1 2020/02/25 22:46:34 +OCR:/lissen/OCRBACKUP/backup_20200225_224634.ocr.262.1033339595 0
lissen-node1 2020/02/25 22:34:52 +OCR:/lissen/OCRBACKUP/backup_20200225_223452.ocr.261.1033338893 0
lissen-node1 2020/02/25 21:05:47 +OCR:/lissen/OCRBACKUP/backup_20200225_210547.ocr.260.1033333551 0
lissen-node1 2020/02/25 21:03:16 +OCR:/lissen/OCRBACKUP/backup_20200225_210316.ocr.259.1033333397 0
[root@lissen-node1 ocr]# ocrconfig -restore '+OCR/lissen/OCRBACKUP/backup_20200225_230751.ocr.263.1033340873';
6、重启CRS后检查OCR是否恢复成功
节点1：
[root@lissen-node1 ocr]# crsctl stop crs -f
CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'lissen-node1'
CRS-2673: Attempting to stop 'ora.ctssd' on 'lissen-node1'
CRS-2673: Attempting to stop 'ora.evmd' on 'lissen-node1'
CRS-2673: Attempting to stop 'ora.asm' on 'lissen-node1'
CRS-2673: Attempting to stop 'ora.mdnsd' on 'lissen-node1'
CRS-2677: Stop of 'ora.ctssd' on 'lissen-node1' succeeded
CRS-2677: Stop of 'ora.evmd' on 'lissen-node1' succeeded
CRS-2677: Stop of 'ora.mdnsd' on 'lissen-node1' succeeded
CRS-2677: Stop of 'ora.asm' on 'lissen-node1' succeeded
CRS-2673: Attempting to stop 'ora.cluster_interconnect.haip' on 'lissen-node1'
CRS-2677: Stop of 'ora.cluster_interconnect.haip' on 'lissen-node1' succeeded
CRS-2673: Attempting to stop 'ora.cssd' on 'lissen-node1'
CRS-2677: Stop of 'ora.cssd' on 'lissen-node1' succeeded
CRS-2673: Attempting to stop 'ora.gpnpd' on 'lissen-node1'
CRS-2673: Attempting to stop 'ora.gipcd' on 'lissen-node1'
CRS-2677: Stop of 'ora.gpnpd' on 'lissen-node1' succeeded
CRS-2677: Stop of 'ora.gipcd' on 'lissen-node1' succeeded
CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'lissen-node1' has completed
CRS-4133: Oracle High Availability Services has been stopped.
节点1和节点2：
crsctl start crs
校验OCR
[grid@lissen-node1 ~]$ cluvfy comp ocr -verbose;
Verifying OCR Integrity ...PASSED
Verification of OCR integrity was successful.
CVU operation performed: OCR integrity
Date: Feb 25, 2020 11:24:37 PM
CVU home: /u19/app/19.2.0.0.0/grid/
User: grid
二、OCR逻辑备份恢复
OCR逻辑备份恢复和物理备份恢复步骤差不多，逻辑备份恢复命令如下：
[root@lissen-node1 ocr]# ocrconfig -export "/u19/app/grid/crsdata/lissen-node1/ocr/lgc_$(date +%Y-%m-%d_%H:%M:%S).ocr";
PROT-58: successfully exported the Oracle Cluster Registry contents to file '/u19/app/grid/crsdata/lissen-node1/ocr/lgc_2020-02-25_23:28:41.ocr'
[root@lissen-node1 ocr]# ls -l /u19/app/grid/crsdata/lissen-node1/ocr
total 204
-rw------- 1 root root 208896 Feb 25 23:28 lgc_2020-02-25_23:28:41.ocr
[root@lissen-node1 ocr]# ocrconfig -import /u19/app/grid/crsdata/lissen-node1/ocr/lgc_2020-02-25_23:28:41.ocr
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