ocr的备份恢复方法是什么

这篇文章主要介绍“ocr的备份恢复方法是什么”，在日常操作中，相信很多人在ocr的备份恢复方法是什么问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”ocr的备份恢复方法是什么”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！

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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

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

到此，关于“ocr的备份恢复方法是什么”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注创新互联网站，小编会继续努力为大家带来更多实用的文章！

分享名称：ocr的备份恢复方法是什么
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