ORACLE --RAC 集群的启动和关闭

RAC集群的启动和关闭，貌似非常的简单，敲来敲去也就是那五六个命令。但是深入理解下去，非常有助于我们了解RAC的构架.

　启动和关闭rac一般使用三种方式:sqlplus,srvctl以及dbconsole或者Oracle grid control,本节中简要介绍下使用srvctl启动和关闭rac数据库集群！

使用crs_stat命令可以查询当前rac各节点下的asm实例，监听器，global service daemon,oracle notification server，vip，数据库实例是否正常！

[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   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    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的缩写，基本的用法是srvctl <command> <object> [<options>]，使用srvctl命令，可以对rac各个节点的数据库实例，asm实例和监听器等进行管理，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

获取更详细的帮助
[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

关闭RAC数据库

[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

关闭各节点的ASM实例

[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

关闭各节点的服务包括 gsd,ons,vip,lisener 监听器等

[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

关闭数据库实例，关闭各节点的ASM实例，关闭各节点实例，启动的顺序反之。

[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

关闭RAC节点的某个实例

?

a2c0

禁止ASM实例和RAC实例自启动

[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