OCR磁盘的导出和导入、备份和恢复以及移动（ocrconfig命令的应用)
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OCR磁盘的导出和导入、备份和恢复以及移动（ocrconfig命令的应用)
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數(shù)據(jù)庫版本：10.2.0.1
一，使用導(dǎo)出、導(dǎo)入進行備份和恢復(fù)
Oracle推薦在對集群做調(diào)整時，比如增加、刪除節(jié)點之前，應(yīng)該對OCR做一個備份，可以使用export 備份到指定文件。如果做了replace或restore等操作，Oracle建議使用"cluvfy comp ocr -n all" 命令做一次全面檢查。
1.首先關(guān)閉所有節(jié)點的CRS
[oracle@rac3 ~]$ crs_stat -t Name Type Target State Host ------------------------------------------------------------ ora....SM1.asm application ONLINE ONLINE rac3 ora....C3.lsnr application ONLINE ONLINE rac3 ora.rac3.gsd application ONLINE ONLINE rac3 ora.rac3.ons application ONLINE ONLINE rac3 ora.rac3.vip application ONLINE ONLINE rac3 ora....SM2.asm application ONLINE ONLINE rac4 ora....C4.lsnr application ONLINE ONLINE rac4 ora.rac4.gsd application ONLINE ONLINE rac4 ora.rac4.ons application ONLINE ONLINE rac4 ora.rac4.vip application ONLINE ONLINE rac4 ora.racdb.db application ONLINE ONLINE rac3 ora....b1.inst application ONLINE ONLINE rac3 ora....b2.inst application ONLINE ONLINE rac4 ora....rver.cs application ONLINE ONLINE rac3 ora....db2.srv application ONLINE ONLINE rac3 [root@rac3 bin]# ./crsctl stop crs Stopping resources. Successfully stopped CRS resources Stopping CSSD. Shutting down CSS daemon. Shutdown request successfully issued. [oracle@rac4 ~]$ crs_stat -t Name Type Target State Host ------------------------------------------------------------ ora....SM1.asm application ONLINE ONLINE rac3 ora....C3.lsnr application ONLINE ONLINE rac3 ora.rac3.gsd application ONLINE ONLINE rac3 ora.rac3.ons application ONLINE ONLINE rac3 ora.rac3.vip application ONLINE ONLINE rac3 ora....SM2.asm application ONLINE ONLINE rac4 ora....C4.lsnr application ONLINE ONLINE rac4 ora.rac4.gsd application ONLINE ONLINE rac4 ora.rac4.ons application ONLINE ONLINE rac4 ora.rac4.vip application ONLINE ONLINE rac4 ora.racdb.db application ONLINE ONLINE rac3 ora....b1.inst application ONLINE ONLINE rac3 ora....b2.inst application ONLINE ONLINE rac4 ora....rver.cs application ONLINE ONLINE rac3 ora....db2.srv application ONLINE ONLINE rac3 [root@rac4 bin]# ./crsctl stop crs Stopping resources. Successfully stopped CRS resources Stopping CSSD. Shutting down CSS daemon. Shutdown request successfully issued.?
2.導(dǎo)出OCR內(nèi)容（需要root用戶導(dǎo)出)
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3.重新啟動CRS
[root@rac3 bin]# ./crsctl start crs Attempting to start CRS stack The CRS stack will be started shortly[root@rac4 bin]# ./crsctl start crs Attempting to start CRS stack The CRS stack will be started shortly?
4.檢查CRS狀態(tài)
[root@rac3 bin]# ./crsctl check crs CSS appears healthy CRS appears healthy EVM appears healthy[root@rac4 bin]# ./crsctl check crs CSS appears healthy CRS appears healthy EVM appears healthy?
5.破壞ocr內(nèi)容
[root@rac4 bin]# dd if=/dev/zero of=/dev/raw/raw1 bs=1M count=120 dd: writing `/dev/raw/raw1': No space left on device 102+0 records in 101+0 records out?
6.現(xiàn)在檢查ocr一致性
[root@rac4 bin]# ./ocrcheck PROT-601: Failed to initialize ocrcheck[root@rac3 bin]# ./ocrcheck PROT-601: Failed to initialize ocrcheck?
7.使用cluvfy工具檢查一致性
[root@rac3 cluvfy]# pwd /opt/clusterware/cluvfy [root@rac3 cluvfy]# ./runcluvfy.sh comp ocr -n allVerifying OCR integrity Unable to retrieve nodelist from Oracle clusterware.Verification cannot proceed.同樣是檢查失敗
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8.現(xiàn)在查看集群狀態(tài)
[oracle@rac3 ~]$ crs_stat -t --ocr被破壞，集群已經(jīng)宕掉 CRS-0184: Cannot communicate with the CRS daemon.[oracle@rac4 ~]$ crs_stat -t CRS-0184: Cannot communicate with the CRS daemon.?
9.使用import恢復(fù)OCR內(nèi)容
[root@rac4 bin]# ./ocrconfig -import /home/oracle/ocr.exp [root@rac4 bin]#?
10.再次檢查OCR
[root@rac4 bin]# ./ocrcheck Status of Oracle Cluster Registry is as follows :Version : 2Total space (kbytes) : 104344Used space (kbytes) : 4340Available space (kbytes) : 100004ID : 945144556Device/File Name : /dev/raw/raw1Device/File integrity check succeededDevice/File not configuredCluster registry integrity check succeeded [root@rac3 bin]# ./ocrcheck Status of Oracle Cluster Registry is as follows :Version : 2Total space (kbytes) : 104344Used space (kbytes) : 4340Available space (kbytes) : 100004ID : 945144556Device/File Name : /dev/raw/raw1Device/File integrity check succeededDevice/File not configuredCluster registry integrity check succeeded?
11.檢查通過,用cluvfy工具檢查
[oracle@rac3 cluvfy]$ ./runcluvfy.sh comp ocr -n allVerifying OCR integrity Checking OCR integrity...Checking the absence of a non-clustered configuration... All nodes free of non-clustered, local-only configurations.Uniqueness check for OCR device passed.Checking the version of OCR... OCR of correct Version "2" exists.Checking data integrity of OCR... Data integrity check for OCR passed.OCR integrity check passed.Verification of OCR integrity was successful.?
12.啟動CRS
[root@rac3 bin]# ./crsctl start crs Attempting to start CRS stack The CRS stack will be started shortly[root@rac4 bin]# ./crsctl start crs Attempting to start CRS stack The CRS stack will be started shortly [oracle@rac4 ~]$ crs_stat -t Name Type Target State Host ------------------------------------------------------------ ora....SM1.asm application ONLINE OFFLINE ora....C3.lsnr application ONLINE OFFLINE ora.rac3.gsd application ONLINE OFFLINE ora.rac3.ons application ONLINE OFFLINE ora.rac3.vip application ONLINE OFFLINE ora....SM2.asm application ONLINE OFFLINE ora....C4.lsnr application ONLINE OFFLINE ora.rac4.gsd application ONLINE OFFLINE ora.rac4.ons application ONLINE OFFLINE ora.rac4.vip application ONLINE OFFLINE ora.racdb.db application ONLINE OFFLINE ora....b1.inst application ONLINE OFFLINE ora....b2.inst application ONLINE OFFLINE ora....rver.cs application ONLINE OFFLINE ora....db2.srv application ONLINE OFFLINE?
13.最后檢查CRS的狀態(tài)
[root@rac3 bin]# ./crsctl check crs CSS appears healthy CRS appears healthy EVM appears healthy[root@rac4 bin]# ./crsctl check crs CSS appears healthy CRS appears healthy EVM appears healthy?
二，移動OCR文件的位置
以下示例將演示如何把OCR從/dev/raw/raw1移動到/dev/raw/raw8上
1.首先查看是否有最近的OCR備份
[root@rac3 bin]# ./ocrconfig -showbackuprac4 2015/01/23 17:54:53 /opt/ora10g/product/10.2.0/crs_1/cdata/crsrac3 2014/10/10 16:51:14 /opt/ora10g/product/10.2.0/crs_1/cdata/crsrac3 2014/10/10 12:51:11 /opt/ora10g/product/10.2.0/crs_1/cdata/crsrac4 2015/01/23 17:54:53 /opt/ora10g/product/10.2.0/crs_1/cdata/crsrac4 2015/01/23 17:54:53 /opt/ora10g/product/10.2.0/crs_1/cdata/crs?
更改備份位置 ocrconfig -backuploc /oracle/backup/ocr
如果沒有備份，可以立即執(zhí)行一次導(dǎo)出作為備份
[root@rac3 bin]# ./ocrconfig -export /home/oracle/ocr.bak2 -s online
[root@rac3 bin]#
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2.查看當前ocr配置
[root@rac3 bin]# ./ocrcheck Status of Oracle Cluster Registry is as follows :Version : 2Total space (kbytes) : 104344Used space (kbytes) : 4340Available space (kbytes) : 100004ID : 945144556Device/File Name : /dev/raw/raw1Device/File integrity check succeededDevice/File not configuredCluster registry integrity check succeeded輸出顯示當前只有一個Primary OCR,位于 /dev/raw/raw1，沒有Mirror OCR
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3.因為現(xiàn)在只有一個OCR文件，位于/dev/raw/raw1,所以不能直接改變這個OCR的位置，
必須先添加鏡像后再修改，否則會出現(xiàn)錯誤：
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4.添加一個Mirror OCR
[root@rac3 bin]# ./ocrconfig -replace ocrmirror /dev/raw/raw7 [root@rac3 bin]#?
5.確認添加成功
[root@rac3 bin]# ./ocrcheck Status of Oracle Cluster Registry is as follows :Version : 2Total space (kbytes) : 104344Used space (kbytes) : 4340Available space (kbytes) : 100004ID : 945144556Device/File Name : /dev/raw/raw1Device/File integrity check succeededDevice/File Name : /dev/raw/raw7 --新添加的Mirror OCRDevice/File integrity check succeededCluster registry integrity check succeeded現(xiàn)在有兩個OCR了，可以修改原來的Primary OCR了
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6.修改Primary OCR為/dev/raw/raw8
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[root@rac3 bin]# ./ocrconfig -replace ocr /dev/raw/raw8 [root@rac3 bin]#?
7.確認修改成功
[root@rac3 bin]# ./ocrcheck Status of Oracle Cluster Registry is as follows :Version : 2Total space (kbytes) : 2096364Used space (kbytes) : 4340Available space (kbytes) : 2092024ID : 945144556Device/File Name : /dev/raw/raw8 --Primary OCR改變了Device/File integrity check succeededDevice/File Name : /dev/raw/raw7Device/File integrity check succeededCluster registry integrity check succeeded?
8.確認修改被同步到了其他節(jié)點
--在另一節(jié)點也能看到更新的信息
[root@rac4 bin]# ./ocrcheck Status of Oracle Cluster Registry is as follows :Version : 2Total space (kbytes) : 2096364Used space (kbytes) : 4340Available space (kbytes) : 2092024ID : 945144556Device/File Name : /dev/raw/raw8Device/File integrity check succeededDevice/File Name : /dev/raw/raw7Device/File integrity check succeededCluster registry integrity check succeeded?
9.使用ocrconfig -replace命令后，所有節(jié)點上的/etc/oracle/ocr.loc文件內(nèi)容也都自動同步了，
如果有點節(jié)點沒有同步，也可以手工修改使其同步：
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三，解決PROT-22: Storage too small錯誤
現(xiàn)在我想改回原來的Primary OCR
[root@rac3 bin]# ./ocrconfig -replace ocr /dev/raw/raw1 PROT-22: Storage too small查詢metalink發(fā)現(xiàn)，這是一個10.2.0.1上的bug，要求ocrmirror設(shè)備的大小要比原始ocr設(shè)備大128M，詳細描述可以參考：ID 317628.1。
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那如何更改過來？？？？??可參考?http://blog.itpub.net/14284241/viewspace-442842/
嘗試直接修改/etc/oracle/orc.loc文件
1.查看目前的OCR配置
[root@rac3 bin]# ./ocrcheck Status of Oracle Cluster Registry is as follows :Version : 2Total space (kbytes) : 2096364Used space (kbytes) : 4340Available space (kbytes) : 2092024ID : 945144556Device/File Name : /dev/raw/raw8Device/File integrity check succeededDevice/File Name : /dev/raw/raw7Device/File integrity check succeededCluster registry integrity check succeeded?
2.對目前的OCR備份
[root@rac3 bin]# ./ocrconfig -export /home/oracle/ocr.bak3 -s online [root@rac3 bin]#?
3.停掉所有節(jié)點的CRS
[root@rac3 bin]# ./crsctl stop crs Stopping resources. Successfully stopped CRS resources Stopping CSSD. Shutting down CSS daemon. Shutdown request successfully issued.[root@rac4 bin]# ./crsctl stop crs Stopping resources. Error while stopping resources. Possible cause: CRSD is down. Stopping CSSD. Shutting down CSS daemon. Shutdown request successfully issued.?
4.手動修改所有節(jié)點的/etc/oracle/ocr.loc文件
[root@rac3 bin]# more /etc/oracle/ocr.loc #Device/file /dev/raw/raw1 getting replaced by device /dev/raw/raw8 ocrconfig_loc=/dev/raw/raw8 ocrmirrorconfig_loc=/dev/raw/raw7 local_only=false [root@rac3 bin]# vi /etc/oracle/ocr.loc [root@rac3 bin]# more /etc/oracle/ocr.loc #Device/file /dev/raw/raw1 getting replaced by device /dev/raw/raw8 ocrconfig_loc=/dev/raw/raw1 #ocrmirrorconfig_loc=/dev/raw/raw7 local_only=false[root@rac4 bin]# more /etc/oracle/ocr.loc #Device/file /dev/raw/raw1 getting replaced by device /dev/raw/raw8 ocrconfig_loc=/dev/raw/raw8 ocrmirrorconfig_loc=/dev/raw/raw7 local_only=false [root@rac4 bin]# vi /etc/oracle/ocr.loc [root@rac4 bin]# more /etc/oracle/ocr.loc #Device/file /dev/raw/raw1 getting replaced by device /dev/raw/raw8 ocrconfig_loc=/dev/raw/raw1 #ocrmirrorconfig_loc=/dev/raw/raw7 local_only=false?
5.檢查一下ocr??
--可以看到ocr現(xiàn)在檢查報錯
[root@rac3 bin]# ./ocrcheck PROT-601: Failed to initialize ocrcheck?
6.導(dǎo)入之前備份的OCR數(shù)據(jù)
[root@rac3 bin]# ./ocrconfig -import /home/oracle/ocr.bak3?
7.現(xiàn)在檢查ocr?
--兩個節(jié)點檢查正常，且ocr盤實現(xiàn)已經(jīng)改過來了
[root@rac3 bin]# ./ocrcheck Status of Oracle Cluster Registry is as follows :Version : 2Total space (kbytes) : 104344Used space (kbytes) : 4340Available space (kbytes) : 100004ID : 1887132889Device/File Name : /dev/raw/raw1Device/File integrity check succeededDevice/File not configuredCluster registry integrity check succeeded[root@rac4 bin]# ./ocrcheck Status of Oracle Cluster Registry is as follows :Version : 2Total space (kbytes) : 104344Used space (kbytes) : 4340Available space (kbytes) : 100004ID : 1887132889Device/File Name : /dev/raw/raw1Device/File integrity check succeededDevice/File not configuredCluster registry integrity check succeeded?
8.啟動crs
[root@rac3 bin]# ./crsctl start crs Attempting to start CRS stack The CRS stack will be started shortly[root@rac4 bin]# ./crsctl start crs Attempting to start CRS stack The CRS stack will be started shortly [oracle@rac3 ~]$ crs_stat -t Name Type Target State Host ------------------------------------------------------------ ora....SM1.asm application ONLINE ONLINE rac3 ora....C3.lsnr application ONLINE ONLINE rac3 ora.rac3.gsd application ONLINE ONLINE rac3 ora.rac3.ons application ONLINE ONLINE rac3 ora.rac3.vip application ONLINE ONLINE rac3 ora....SM2.asm application ONLINE ONLINE rac4 ora....C4.lsnr application ONLINE ONLINE rac4 ora.rac4.gsd application ONLINE ONLINE rac4 ora.rac4.ons application ONLINE ONLINE rac4 ora.rac4.vip application ONLINE ONLINE rac4 ora.racdb.db application ONLINE ONLINE rac4 ora....b1.inst application ONLINE ONLINE rac3 ora....b2.inst application ONLINE ONLINE rac4 ora....rver.cs application ONLINE ONLINE rac3 ora....db2.srv application ONLINE ONLINE rac4?
9.檢查crs狀態(tài)
[root@rac3 bin]# ./crsctl check crs CSS appears healthy CRS appears healthy EVM appears healthy[root@rac4 bin]# ./crsctl check crs CSS appears healthy CRS appears healthy EVM appears healthy至此我么把ocr盤通過手動的方式更改過來了，RAC正常。
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--本文章 部分參考張曉明<<大話Oracle RAC>>及其他
?轉(zhuǎn)：http://www.cnblogs.com/myrunning/p/4253696.html
轉(zhuǎn)載于:https://www.cnblogs.com/andy6/p/5898015.html
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