Oracle 11g RAC One node 安裝與配置
一、RAC One Node介紹
1、rac one node資料庫可以轉換成RAC資料庫，轉換過程可以線上，無需停止RAC one node資料庫；
2、rac one node可以建立多個rac onde node資料庫執行在不同的節點上；
3、當執行節點需要維護，如打patch，可以手動切換(relocate）使用online database relocate，減少業務中斷時間；
4、rac one node比RAC資料庫減少了節點間資料傳輸時間以及GC類的等待事件；
5、從11.2.0.1開始就有了rac one node特性，但僅僅支援linux平臺，在11.2.0.2以後支援所有平臺；
參考文件：Oracle RACOne Node -- Changes in 11.2.0.2 (文件 ID 1232802.1)?
二、使用DBCA建立RAC One Node
[oracle@jzh1 ~]$ dbca
2.1 選擇"Oracle RAC One Node database"
後面建立資料庫與建立RAC資料庫基本一致，過程省略。。。。。
2.2、RAC one資料庫基本資訊
$ srvctl config database -d jzh
Database unique name: jzh
Database name: jzh
Oracle home: /u01/app/oracle/product/11.2.0/db_1
Oracle user: oracle
Spfile: +DATA/jzh/spfilejzh.ora
Domain:
Start options: open
Stop options: immediate
Database role: PRIMARY
Management policy: AUTOMATIC
Server pools: jzh
Database instances:
Disk Groups: DATA,ARCH
Mount point paths:
Services: jzhdb==============》新建的Service
Type: RACOneNode===========》資料庫型別是 one node
Online relocation timeout: 30
Instance name prefix: jzh
Candidate servers: jzh1,jzh2
Database is administrator managed
2.3、資料庫配置資訊
SQL> show parameter name
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_file_name_convert string
db_name string jzh
db_unique_name string jzh
global_names boolean FALSE
instance_name string jzh_1==========》例項名，在RAC資料庫中例項一般為jzh1，而在RAC One Node中多了"_"。
lock_name_space string
log_file_name_convert string
processor_group_name string
service_names string jzhdb
2.4、叢集資訊
SQL> show parameter cluster_database
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
cluster_database boolean TRUE
cluster_database_instances integer 2
2.5、RAC One Node切換(relocate）
查詢當前例項執行情況：
$ crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ARCH.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.DATA.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.LISTENER.lsnr
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.VOTE.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.asm
ONLINE ONLINE jzh1 Started
ONLINE ONLINE jzh2 Started
ora.gsd
OFFLINE OFFLINE jzh1
OFFLINE OFFLINE jzh2
ora.net1.network
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.ons
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE jzh2
ora.cvu
1 OFFLINE OFFLINE
ora.jzh.db
1 ONLINE ONLINE jzh1 Open
ora.jzh.jzhdb.svc
1 ONLINE ONLINE jzh1
ora.jzh1.vip
1 ONLINE ONLINE jzh1
ora.jzh2.vip
1 ONLINE ONLINE jzh2
ora.oc4j
1 ONLINE ONLINE jzh2
ora.scan1.vip
1 ONLINE ONLINE jzh2
資料庫與service均執行在節點1上(jzh1)
2.6、使用relocate將RAC One Node資料庫切到節點2上(jzh2)
$ srvctl relocate database -d jzh -n jzh2
relocate之後，再次查詢RAC One Node執行情況：
$ crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ARCH.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.DATA.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.LISTENER.lsnr
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.VOTE.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.asm
ONLINE ONLINE jzh1 Started
ONLINE ONLINE jzh2 Started
ora.gsd
OFFLINE OFFLINE jzh1
OFFLINE OFFLINE jzh2
ora.net1.network
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.ons
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE jzh2
ora.cvu
1 OFFLINE OFFLINE
ora.jzh.db
2 ONLINE ONLINE jzh2 Open
ora.jzh.jzhdb.svc
1 ONLINE ONLINE jzh2
ora.jzh1.vip
1 ONLINE ONLINE jzh1
ora.jzh2.vip
1 ONLINE ONLINE jzh2
ora.oc4j
1 ONLINE ONLINE jzh2
ora.scan1.vip
1 ONLINE ONLINE jzh2
此時，資料庫與service切換至節點2上(jzh2)。
2.7、檢視資料庫配置資訊
[grid@jzh1 ~]$ srvctl config service -d jzh
Service name: jzhdb
Service is enabled
Server pool: jzh
Cardinality: 1
Disconnect: false
Service role: PRIMARY
Management policy: AUTOMATIC
DTP transaction: false
AQ HA notifications: false
Failover type: NONE
Failover method: NONE
TAF failover retries: 0
TAF failover delay: 0
Connection Load Balancing Goal: LONG
Runtime Load Balancing Goal: NONE
TAF policy specification: BASIC
Edition:
Preferred instances: jzh_2
Available instances:
2.8 轉換RAC One Node至RAC
注：以RAC One Node database擁有者執行以下命令：
$ su - oracle
$ srvctl convert database -d jzh -c RAC -n jzh1
$ srvctl config database -d jzh
Database unique name: jzh
Database name: jzh
Oracle home: /u01/app/oracle/product/11.2.0/db_1
Oracle user: oracle
Spfile: +DATA/jzh/spfilejzh.ora
Domain:
Start options: open
Stop options: immediate
Database role: PRIMARY
Management policy: AUTOMATIC
Server pools: jzh
Database instances: jzh_1
Disk Groups: DATA,ARCH
Mount point paths:
Services: jzhdb
Type: RAC
Database is administrator managed
我們可以看到Type型別變成RAC了。
2.9、新增節點2(jzh2)例項
$ srvctl add instance -d jzh -i jzh_2 -n jzh2
$ srvctl config database -d jzh
Database unique name: jzh
Database name: jzh
Oracle home: /u01/app/oracle/product/11.2.0/db_1
Oracle user: oracle
Spfile: +DATA/jzh/spfilejzh.ora
Domain:
Start options: open
Stop options: immediate
Database role: PRIMARY
Management policy: AUTOMATIC
Server pools: jzh
Database instances: jzh_1,jzh_2
Disk Groups: DATA,ARCH
Mount point paths:
Services: jzhdb
Type: RAC
Database is administrator managed
這裡我們看到jzh_2新增進來了。
$ srvctl start database -d jzh
$ crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ARCH.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.DATA.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.LISTENER.lsnr
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.VOTE.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.asm
ONLINE ONLINE jzh1 Started
ONLINE ONLINE jzh2 Started
ora.gsd
OFFLINE OFFLINE jzh1
OFFLINE OFFLINE jzh2
ora.net1.network
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.ons
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE jzh2
ora.cvu
1 OFFLINE OFFLINE
ora.jzh.db
1 ONLINE ONLINE jzh1 Open
2 ONLINE ONLINE jzh2 Open
ora.jzh.jzhdb.svc
1 ONLINE ONLINE jzh1
ora.jzh1.vip
1 ONLINE ONLINE jzh1
ora.jzh2.vip
1 ONLINE ONLINE jzh2
ora.oc4j
1 ONLINE ONLINE jzh2
ora.scan1.vip
1 ONLINE ONLINE jzh2
這裡可以看到DB執行在jzh1,jzh2上。
2.10、重新配置服務
$ srvctl stop service -d jzh -s jzhdb
$ srvctl remove service -d jzh -s jzhdb
$ srvctl add service -d jzh -s jzhdb -r jzh_1,jzh_2 -P BASIC
$ srvctl start service -d jzh -s jzhdb
至此，RAC One Node配置完成!
1、rac one node資料庫可以轉換成RAC資料庫，轉換過程可以線上，無需停止RAC one node資料庫；
2、rac one node可以建立多個rac onde node資料庫執行在不同的節點上；
3、當執行節點需要維護，如打patch，可以手動切換(relocate）使用online database relocate，減少業務中斷時間；
4、rac one node比RAC資料庫減少了節點間資料傳輸時間以及GC類的等待事件；
5、從11.2.0.1開始就有了rac one node特性，但僅僅支援linux平臺，在11.2.0.2以後支援所有平臺；
參考文件：Oracle RACOne Node -- Changes in 11.2.0.2 (文件 ID 1232802.1)?
二、使用DBCA建立RAC One Node
[oracle@jzh1 ~]$ dbca
2.1 選擇"Oracle RAC One Node database"
後面建立資料庫與建立RAC資料庫基本一致，過程省略。。。。。
2.2、RAC one資料庫基本資訊
$ srvctl config database -d jzh
Database unique name: jzh
Database name: jzh
Oracle home: /u01/app/oracle/product/11.2.0/db_1
Oracle user: oracle
Spfile: +DATA/jzh/spfilejzh.ora
Domain:
Start options: open
Stop options: immediate
Database role: PRIMARY
Management policy: AUTOMATIC
Server pools: jzh
Database instances:
Disk Groups: DATA,ARCH
Mount point paths:
Services: jzhdb==============》新建的Service
Type: RACOneNode===========》資料庫型別是 one node
Online relocation timeout: 30
Instance name prefix: jzh
Candidate servers: jzh1,jzh2
Database is administrator managed
2.3、資料庫配置資訊
SQL> show parameter name
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_file_name_convert string
db_name string jzh
db_unique_name string jzh
global_names boolean FALSE
instance_name string jzh_1==========》例項名，在RAC資料庫中例項一般為jzh1，而在RAC One Node中多了"_"。
lock_name_space string
log_file_name_convert string
processor_group_name string
service_names string jzhdb
2.4、叢集資訊
SQL> show parameter cluster_database
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
cluster_database boolean TRUE
cluster_database_instances integer 2
2.5、RAC One Node切換(relocate）
查詢當前例項執行情況：
$ crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ARCH.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.DATA.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.LISTENER.lsnr
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.VOTE.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.asm
ONLINE ONLINE jzh1 Started
ONLINE ONLINE jzh2 Started
ora.gsd
OFFLINE OFFLINE jzh1
OFFLINE OFFLINE jzh2
ora.net1.network
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.ons
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE jzh2
ora.cvu
1 OFFLINE OFFLINE
ora.jzh.db
1 ONLINE ONLINE jzh1 Open
ora.jzh.jzhdb.svc
1 ONLINE ONLINE jzh1
ora.jzh1.vip
1 ONLINE ONLINE jzh1
ora.jzh2.vip
1 ONLINE ONLINE jzh2
ora.oc4j
1 ONLINE ONLINE jzh2
ora.scan1.vip
1 ONLINE ONLINE jzh2
資料庫與service均執行在節點1上(jzh1)
2.6、使用relocate將RAC One Node資料庫切到節點2上(jzh2)
$ srvctl relocate database -d jzh -n jzh2
relocate之後，再次查詢RAC One Node執行情況：
$ crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ARCH.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.DATA.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.LISTENER.lsnr
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.VOTE.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.asm
ONLINE ONLINE jzh1 Started
ONLINE ONLINE jzh2 Started
ora.gsd
OFFLINE OFFLINE jzh1
OFFLINE OFFLINE jzh2
ora.net1.network
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.ons
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE jzh2
ora.cvu
1 OFFLINE OFFLINE
ora.jzh.db
2 ONLINE ONLINE jzh2 Open
ora.jzh.jzhdb.svc
1 ONLINE ONLINE jzh2
ora.jzh1.vip
1 ONLINE ONLINE jzh1
ora.jzh2.vip
1 ONLINE ONLINE jzh2
ora.oc4j
1 ONLINE ONLINE jzh2
ora.scan1.vip
1 ONLINE ONLINE jzh2
此時，資料庫與service切換至節點2上(jzh2)。
2.7、檢視資料庫配置資訊
[grid@jzh1 ~]$ srvctl config service -d jzh
Service name: jzhdb
Service is enabled
Server pool: jzh
Cardinality: 1
Disconnect: false
Service role: PRIMARY
Management policy: AUTOMATIC
DTP transaction: false
AQ HA notifications: false
Failover type: NONE
Failover method: NONE
TAF failover retries: 0
TAF failover delay: 0
Connection Load Balancing Goal: LONG
Runtime Load Balancing Goal: NONE
TAF policy specification: BASIC
Edition:
Preferred instances: jzh_2
Available instances:
2.8 轉換RAC One Node至RAC
注：以RAC One Node database擁有者執行以下命令：
$ su - oracle
$ srvctl convert database -d jzh -c RAC -n jzh1
$ srvctl config database -d jzh
Database unique name: jzh
Database name: jzh
Oracle home: /u01/app/oracle/product/11.2.0/db_1
Oracle user: oracle
Spfile: +DATA/jzh/spfilejzh.ora
Domain:
Start options: open
Stop options: immediate
Database role: PRIMARY
Management policy: AUTOMATIC
Server pools: jzh
Database instances: jzh_1
Disk Groups: DATA,ARCH
Mount point paths:
Services: jzhdb
Type: RAC
Database is administrator managed
我們可以看到Type型別變成RAC了。
2.9、新增節點2(jzh2)例項
$ srvctl add instance -d jzh -i jzh_2 -n jzh2
$ srvctl config database -d jzh
Database unique name: jzh
Database name: jzh
Oracle home: /u01/app/oracle/product/11.2.0/db_1
Oracle user: oracle
Spfile: +DATA/jzh/spfilejzh.ora
Domain:
Start options: open
Stop options: immediate
Database role: PRIMARY
Management policy: AUTOMATIC
Server pools: jzh
Database instances: jzh_1,jzh_2
Disk Groups: DATA,ARCH
Mount point paths:
Services: jzhdb
Type: RAC
Database is administrator managed
這裡我們看到jzh_2新增進來了。
$ srvctl start database -d jzh
$ crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ARCH.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.DATA.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.LISTENER.lsnr
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.VOTE.dg
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.asm
ONLINE ONLINE jzh1 Started
ONLINE ONLINE jzh2 Started
ora.gsd
OFFLINE OFFLINE jzh1
OFFLINE OFFLINE jzh2
ora.net1.network
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
ora.ons
ONLINE ONLINE jzh1
ONLINE ONLINE jzh2
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE jzh2
ora.cvu
1 OFFLINE OFFLINE
ora.jzh.db
1 ONLINE ONLINE jzh1 Open
2 ONLINE ONLINE jzh2 Open
ora.jzh.jzhdb.svc
1 ONLINE ONLINE jzh1
ora.jzh1.vip
1 ONLINE ONLINE jzh1
ora.jzh2.vip
1 ONLINE ONLINE jzh2
ora.oc4j
1 ONLINE ONLINE jzh2
ora.scan1.vip
1 ONLINE ONLINE jzh2
這裡可以看到DB執行在jzh1,jzh2上。
2.10、重新配置服務
$ srvctl stop service -d jzh -s jzhdb
$ srvctl remove service -d jzh -s jzhdb
$ srvctl add service -d jzh -s jzhdb -r jzh_1,jzh_2 -P BASIC
$ srvctl start service -d jzh -s jzhdb
至此，RAC One Node配置完成!
來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/10271187/viewspace-1463637/，如需轉載，請註明出處，否則將追究法律責任。
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