單實例GI環境怎么轉換為集群環境
這篇文章主要講解了“單實例GI環境怎么轉換為集群環境”，文中的講解內容簡單清晰，易于學習與理解，下面請大家跟著小編的思路慢慢深入，一起來研究和學習“單實例GI環境怎么轉換為集群環境”吧！
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1. 單機ASM轉換集群ASM
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1.1 關閉GI環境資源.
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[oracle@a42ams1 ~]$ sqlplus / as sysdba
SQL> shutdown immediate;
[grid@a42ams1 ~]$ crsctl stop has
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1.2 檢查安裝環境信息
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--1.2.1 配置互信
./sshUserSetup.sh -hosts "a42ams1 a42ams2" -user grid -advanced -noPromptPassphrase
./sshUserSetup.sh -hosts "a42ams1 a42ams2" -user oracle -advanced -noPromptPassphrase
more /etc/hosts | grep -Ev '^#|^$|127.0.0.1|vip|scan|:' | awk '{print "ssh " $2 " date;"}' > ping.sh
--1.2.2 執行集群安裝校驗
./runcluvfy.sh stage -pre crsinst -n a42ams1,a42ams2 -verbose
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1.3 卸載單機環境GI,清除軟件文件
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[root@a42ams1 ~]# cd /grid/app/11.2.0/
[root@a42ams1 grid]# cd crs/install/
[root@a42ams1 install]# ./roothas.pl -deconfig -force
Using configuration parameter file: ./crsconfig_params
CRS resources for listeners are still configured
PRKO-2573 : ONS daemon is already stopped.
CRS-2673: Attempting to stop 'ora.A42AMSARCH.dg' on 'a42ams1'
CRS-2673: Attempting to stop 'ora.A42AMSDATA1.dg' on 'a42ams1'
CRS-2673: Attempting to stop 'ora.A42AMSOCR.dg' on 'a42ams1'
CRS-2677: Stop of 'ora.A42AMSOCR.dg' on 'a42ams1' succeeded
CRS-2677: Stop of 'ora.A42AMSDATA1.dg' on 'a42ams1' succeeded
CRS-2677: Stop of 'ora.A42AMSARCH.dg' on 'a42ams1' succeeded
CRS-2673: Attempting to stop 'ora.asm' on 'a42ams1'
CRS-2677: Stop of 'ora.asm' on 'a42ams1' succeeded
CRS-2673: Attempting to stop 'ora.cssd' on 'a42ams1'
CRS-2677: Stop of 'ora.cssd' on 'a42ams1' succeeded
CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'a42ams1'
CRS-2673: Attempting to stop 'ora.evmd' on 'a42ams1'
CRS-2677: Stop of 'ora.evmd' on 'a42ams1' succeeded
CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'a42ams1' has completed
CRS-4133: Oracle High Availability Services has been stopped.
Successfully deconfigured Oracle Restart stack
--11.2.0.4已經不支持 (How to Convert a Single-Instance ASM to Cluster ASM (文檔 ID 452758.1) )
[oracle@a42ams1 ~]$ cd $ORACLE_HOME/bin
[oracle@a42ams1 bin]$ dbca -silent -deleteASM
This is no longer a supported operation. Use Automatic Storage Management Configuration Assistant (ASMCA) from grid infrastructure/clusterware home to delete ASM.
--分離GI的ORACLE_HOME信息
[grid@a42ams1 ~]$
$ORACLE_HOME/oui/bin/runInstaller -silent -detachHome ORACLE_HOME=$ORACLE_HOME
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1.4 新裝GI/DB環境 (注意調整目錄及環境變量)
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--如果需要使用原有磁盤作為OCR磁盤,需要清空磁盤信息
[root@a42ams1 ~]# dd if=/dev/zero of=/dev/asm-ocr1 bs=1M count=100
[root@a42ams1 ~]# dd if=/dev/zero of=/dev/asm-ocr2 bs=1M count=100
[root@a42ams1 ~]# dd if=/dev/zero of=/dev/asm-ocr3 bs=1M count=100
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2. 單機數據庫轉換集群數據庫
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2.1 掛載原有DG (兩個節點都可以進行掛載)
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[grid@a42ams1 ~]$ kfod a='/dev/asm*' disks=all ds=true o=all
[grid@a42ams1 ~]$ sqlplus / as sysasm
SQL> alter diskgroup A42AMSDATA1 mount;
SQL> alter diskgroup A42AMSARCH mount;
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2.2 啟動原有數據庫 (需要修改oracle可執行程序權限,否則啟動數據庫時無法訪問磁盤組)
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--2.2.1 復制原有的參數文件和口令文件到新安裝目錄下,啟動數據庫
[oracle@a42ams1 ~]$ sqlplus / as sysdba
SQL> startup
ORA-01565: error in identifying file '+A42AMSDATA1/a42amsdb/spfilea42amsdb.ora'
ORA-17503: ksfdopn:2 Failed to open file +A42AMSDATA1/a42amsdb/spfilea42amsdb.ora
ORA-15001: diskgroup "A42AMSDATA1" does not exist or is not mounted
ORA-15040: diskgroup is incomplete
--2.2.2 調整oracle可執行程序文件權限
[oracle@a42ams1 trace]$ ls -la $ORACLE_HOME/bin/oracle
-rwsr-s--x 1 oracle oinstall 239626689 Jun 14 10:23 /oracle/app/oracle/product/11.2.0.4/db_1/bin/oracle
[root@a42ams1 bin]# /grid/app/11.2.0.4/grid/bin/setasmgidwrap o=/oracle/app/oracle/product/11.2.0.4/db_1/bin/oracle
--2.2.3 啟動數據庫
[oracle@a42ams1 ~]$ sqlplus / as sysdba
SQL> startup;
--2.2.4 將數據庫加入crs資源中,并校驗環境信息
[oracle@a42ams1 ~]$ srvctl add database -d a42amsdb -o /oracle/app/oracle/product/11.2.0.4/db_1 -p +A42AMSDATA1/a42amsdb/spfilea42amsdb.ora -c Single -x a42ams1
[oracle@a42ams1 ~]$ srvctl config database -d a42amsdb
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2.3 進行rac數據庫轉換 (MOS ID 1362116.1)
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[oracle@a42ams1 ~]$ cd $ORACLE_HOME/assistants/rconfig/sampleXMLs
[oracle@a42ams1 sampleXMLs]$ cp ConvertToRAC_AdminManaged.xml ~
--2.3.1 替換轉換信息
[oracle@a42ams1 ~]$ vi ConvertToRAC_AdminManaged.xml
--轉換路徑信息 (配置文件中提示源和目標的目錄可以一致)
<!--Specify OracleHome where the rac database should be configured. It can be same as SourceDBHome -->
:%s#/oracle/product/11.2.0/db_1#/oracle/app/oracle/product/11.2.0.4/db_1#g
--實例信息
<n:SourceDBInfo SID="sales">
替換為：
<n:SourceDBInfo SID="a42amsdb">
--節點信息
<n:NodeList>
<n:Node name="node1"/>
<n:Node name="node2"/>
</n:NodeList>
替換為：
<n:NodeList>
<n:Node name="a42ams1"/>
<n:Node name="a42ams2"/>
</n:NodeList>
--實例前綴信息
<n:InstancePrefix>sales</n:InstancePrefix>
替換為：
<n:InstancePrefix>a42amsdb</n:InstancePrefix>
--DG信息調整 (由于不需要進行數據遷移,DG信息置空)
<n:TargetDatabaseArea>+ASMDG</n:TargetDatabaseArea>
替換為：
<n:TargetDatabaseArea></n:TargetDatabaseArea>
<n:TargetFlashRecoveryArea>+ASMDG</n:TargetFlashRecoveryArea>
替換為：
<n:TargetFlashRecoveryArea></n:TargetFlashRecoveryArea>
--2.3.2 修改sys用戶口令為oracle
SQL> alter user sys identified by oracle;
--2.3.3 對轉換文件進行校驗
[oracle@a42ams1 ~]$ vi ConvertToRAC_AdminManaged.xml
<n:Convert verify="YES">
替換為：
<n:Convert verify="ONLY">
[oracle@a42ams1 ~]$ $ORACLE_HOME/bin/rconfig ./ConvertToRAC_AdminManaged.xml
--2.3.4 執行轉換
[oracle@a42ams1 ~]$ vi ConvertToRAC_AdminManaged.xml
<n:Convert verify="ONLY">
替換為：
<n:Convert verify="YES">
[oracle@a42ams1 ~]$ $ORACLE_HOME/bin/rconfig ./ConvertToRAC_AdminManaged.xml
Converting Database "a42amsdb" to Cluster Database. Target Oracle Home: /oracle/app/oracle/product/11.2.0.4/db_1. Database Role: PRIMARY.
Setting Data Files and Control Files
Adding Database Instances
Adding Redo Logs
Enabling threads for all Database Instances
Setting TEMP tablespace
Adding UNDO tablespaces
Adding Trace files
Setting Fast Recovery Area
Updating Oratab
Creating Password file(s)
Configuring Listeners
Configuring related CRS resources
Starting Cluster Database
--2.3.5 執行轉換檢查轉換結果,修改環境變量
[oracle@a42ams1 ~]$ srvctl config database -d a42amsdb
[oracle@a42ams1 ~]$ crsctl stat res ora.a42amsdb.db -t
[oracle@a42ams1 ~]$ ps -ef | grep ora_smon
[oracle@a42ams2 ~]$ ps -ef | grep ora_smon
感謝各位的閱讀，以上就是“單實例GI環境怎么轉換為集群環境”的內容了，經過本文的學習后，相信大家對單實例GI環境怎么轉換為集群環境這一問題有了更深刻的體會，具體使用情況還需要大家實踐驗證。這里是創新互聯，小編將為大家推送更多相關知識點的文章，歡迎關注！
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