ORACLE RAC 叢集的啟動和關閉
RAC叢集的啟動和關閉，貌似非常的簡單，敲來敲去也就是那五六個命令。但是深入理解下去，非常有助於我們瞭解RAC的構架.
啟動和關閉rac一般使用三種方式:sqlplus,srvctl以及dbconsole或者Oracle grid control,本節中簡要介紹下使用srvctl啟動和關閉rac資料庫叢集！
使用crs_stat命令可以查詢當前rac各節點下的asm例項，監聽器，global service daemon,oracle notification server，vip，資料庫例項是否正常！
[root@rac1 ~]# su - oracle [oracle@rac1~]$ crs_stat -t -v Name Type R/RA F/FT Target State Host ---------------------------------------------------------------------- ora....SM1.asm application 0/5 0/0 ONLINE ONLINE rac1 ora....C1.lsnr application 0/5 0/0 ONLINE ONLINE rac1 ora.rac1.gsd application0/5 0/0 ONLINE ONLINE rac1 ora.rac1.ons application 0/3 0/0 ONLINE ONLINE rac1 ora.rac1.vip application 0/0 0/0 ONLINE ONLINE rac1 ora....SM2.asm application 0/5 0/0 ONLINE ONLINE rac2 ora....C2.lsnr application 0/5 0/0 ONLINE ONLINE rac2 ora.rac2.gsd application0/5 0/0 ONLINE ONLINE rac2 ora.rac2.ons application 0/3 0/0 ONLINE ONLINE rac2 ora.rac2.vip application 0/0 0/0 ONLINE ONLINE rac2 ora.racdb.db application 0/1 0/1 ONLINE ONLINE rac1 ora....b1.inst application 0/5 0/0 ONLINE ONLINE rac1 ora....b2.inst application 0/5 0/0 ONLINE ONLINE rac2
srvctl命令的使用
srvctl是service control的縮寫，基本的用法是srvctl <command> <object> [<options>]，使用srvctl命令，可以對rac各個節點的資料庫例項，asm例項和監聽器等進行管理，挺方便的工具
oracle@rac2 ~]$ srvctl Usage: srvctl <command> <object> [<options>] command: enable|disable|start|stop|relocate|status|add|remove|modify|getenv|setenv|unsetenv|config objects: database|instance|service|nodeapps|asm|listener For detailed help on each command and object and its options use: srvctl <command> <object> -h 獲取更詳細的幫助 [oracle@rac2 ~]$ srvctl start asm -h Usage: srvctl start asm -n <node_name> [-i <asm_inst_name>] [-o <start_options>] [-c <connect_str> | -q] -n <node> Node name -i <asm_inst_name> ASM instance name -o <start_options> Options to startup command (e.g. open, mount, or nomount) -c <connstr> Connect string (default: / as sysdba) -q Query connect string from standard input -h Print usage
關閉RAC資料庫
[oracle@rac2 ~]$ srvctl stop database -d racdb [oracle@rac2 ~]$ crs_stat -t -v Name Type R/RA F/FT Target State Host ---------------------------------------------------------------------- ora....SM1.asm application 0/5 0/0 ONLINE ONLINE rac1 ora....C1.lsnr application 0/5 0/0 ONLINE ONLINE rac1 ora.rac1.gsd application 0/5 0/0 ONLINE ONLINE rac1 ora.rac1.ons application 0/3 0/0 ONLINE ONLINE rac1 ora.rac1.vip application 0/0 0/0 ONLINE ONLINE rac1 ora....SM2.asm application 0/5 0/0 ONLINE ONLINE rac2 ora....C2.lsnr application 0/5 0/0 ONLINE ONLINE rac2 ora.rac2.gsd application 0/5 0/0 ONLINE ONLINE rac2 ora.rac2.ons application 0/3 0/0 ONLINE ONLINE rac2 ora.rac2.vip application 0/0 0/0 ONLINE ONLINE rac2 ora.racdb.db application 0/1 0/1 OFFLINE OFFLINE ora....b1.inst application 0/5 0/0 OFFLINE OFFLINE ora....b2.inst application 0/5 0/0 OFFLINE OFFLINE
關閉各節點的ASM例項
[oracle@rac2 ~]$ srvctl stop asm -n rac1 [oracle@rac2 ~]$ srvctl stop asm -n rac2 [oracle@rac2 ~]$ crs_stat -t -v Name Type R/RA F/FT Target State Host ---------------------------------------------------------------------- ora....SM1.asm application 0/5 0/0 OFFLINE OFFLINE ora....C1.lsnr application 0/5 0/0 ONLINE ONLINE rac1 ora.rac1.gsd application 0/5 0/0 ONLINE ONLINE rac1 ora.rac1.ons application 0/3 0/0 ONLINE ONLINE rac1 ora.rac1.vip application 0/0 0/0 ONLINE ONLINE rac1 ora....SM2.asm application 0/5 0/0 OFFLINE OFFLINE ora....C2.lsnr application 0/5 0/0 ONLINE ONLINE rac2 ora.rac2.gsd application 0/5 0/0 ONLINE ONLINE rac2 ora.rac2.ons application 0/3 0/0 ONLINE ONLINE rac2 ora.rac2.vip application 0/0 0/0 ONLINE ONLINE rac2 ora.racdb.db application 0/1 0/1 OFFLINE OFFLINE ora....b1.inst application 0/5 0/0 OFFLINE OFFLINE ora....b2.inst application 0/5 0/0 OFFLINE OFFLINE
關閉各節點的服務包括 gsd,ons,vip,lisener 監聽器等
[oracle@rac2 ~]$ srvctl stop nodeapps -n rac1 [oracle@rac2 ~]$ srvctl stop nodeapps -n rac2 [oracle@rac2 ~]$ crs_stat -t -v Name Type R/RA F/FT Target State Host ---------------------------------------------------------------------- ora....SM1.asm application 0/5 0/0 OFFLINE OFFLINE ora....C1.lsnr application 0/5 0/0 OFFLINE OFFLINE ora.rac1.gsd application 0/5 0/0 OFFLINE OFFLINE ora.rac1.ons application 0/3 0/0 OFFLINE OFFLINE ora.rac1.vip application 0/0 0/0 OFFLINE OFFLINE ora....SM2.asm application 0/5 0/0 OFFLINE OFFLINE ora....C2.lsnr application 0/5 0/0 OFFLINE OFFLINE ora.rac2.gsd application 0/5 0/0 OFFLINE OFFLINE ora.rac2.ons application 0/3 0/0 OFFLINE OFFLINE ora.rac2.vip application 0/0 0/0 OFFLINE OFFLINE ora.racdb.db application 0/1 0/1 OFFLINE OFFLINE ora....b1.inst application 0/5 0/0 OFFLINE OFFLINE ora....b2.inst application 0/5 0/0 OFFLINE OFFLINE
關閉資料庫例項，關閉各節點的ASM例項，關閉各節點例項，啟動的順序反之。
[oracle@rac2 ~]$ srvctl start nodeapps -n rac1 [oracle@rac2 ~]$ srvctl start nodeapps -n rac2 [oracle@rac2 ~]$ srvctl start asm -n rac1 [oracle@rac2 ~]$ srvctl start asm -n rac2 [oracle@rac2 ~]$ srvctl start instance -d racdb -i racdb1 -o mount [oracle@rac2 ~]$ srvctl start instance -d racdb -i racdb2 -o open [oracle@rac2 ~]$ sqlplus sys/123456@racdb1 as sysdba SQL*Plus: Release 10.2.0.1.0 - Production on Sat Nov 26 12:15:57 2011 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production With the Partitioning, Real Application Clusters, OLAP and Data Mining options SQL> select open_mode,name from v$database; OPEN_MODE NAME ------------------------------ --------------------------- MOUNTED RACDB SQL> conn sys/123456@racdb2 as sysdba Connected. SQL> select open_mode,name from v$database; OPEN_MODE NAME ------------------------------ --------------------------- READ WRITE RACDB
關閉RAC節點的某個例項
[oracle@rac2
~]$ srvctl start nodeapps -n rac1
[oracle@rac2
~]$ srvctl start nodeapps -n rac2
[oracle@rac2
~]$ srvctl start asm -n rac1
[oracle@rac2
~]$ srvctl start asm -n rac2
[oracle@rac2
~]$ srvctl start instance -d racdb -i racdb1 -o mount
[oracle@rac2
~]$ srvctl start instance -d racdb -i racdb2 -o open
[oracle@rac2
~]$ sqlplus sys/123456@racdb1 as sysdba
SQL*Plus:
Release 10.2.0.1.0 - Production on Sat
Nov 26 12:15:57 2011
Copyright
(c) 1982, 2005, Oracle. All rights reserved.
Connected
to:
Oracle
Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With
the Partitioning, Real Application Clusters, OLAP and Data Mining options
SQL>
select open_mode,name
from v$database;
OPEN_MODE
NAME
------------------------------
---------------------------
MOUNTED
RACDB
SQL>
conn sys/123456@racdb2 as sysdba
Connected.
SQL>
select open_mode,name
from v$database;
OPEN_MODE
NAME
------------------------------
---------------------------
READ
WRITE RACDB
|
禁止ASM例項和RAC例項自啟動
[oracle@rac2 ~]$ srvctl disable asm -n rac1
[oracle@rac2 ~]$ srvctl disable asm -n rac2
[oracle@rac2 ~]$ srvctl disable database -d racdb
[oracle@rac1 ~]$ uptime
21:46:45 up 2 min, 1 user, load average: 2.03, 0.78, 0.28
[oracle@rac1 ~]$ crs_stat -t -v
Name Type R/RA F/FT Target State Host
----------------------------------------------------------------------
ora....SM1.asm application 0/5 0/0 ONLINE OFFLINE
ora....C1.lsnr application 0/5 0/0 ONLINE ONLINE rac1
ora.rac1.gsd application 0/5 0/0 ONLINE ONLINE rac1
ora.rac1.ons application 0/3 0/0 ONLINE ONLINE rac1
ora.rac1.vip application 0/0 0/0 ONLINE ONLINE rac1
ora....SM2.asm application 0/5 0/0 ONLINE OFFLINE
ora....C2.lsnr application 0/5 0/0 ONLINE ONLINE rac2
ora.rac2.gsd application 0/5 0/0 ONLINE ONLINE rac2
ora.rac2.ons application 0/3 0/0 ONLINE ONLINE rac2
ora.rac2.vip application 0/0 0/0 ONLINE ONLINE rac2
ora.racdb.db application 0/1 0/1 OFFLINE OFFLINE
ora....b1.inst application 0/1 0/0 OFFLINE OFFLINE
ora....b2.inst application 0/1 0/0 OFFLINE OFFLINE