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
NameTypeR/RAF/FTTargetStateHost
----------------------------------------------------------------------ora....SM1.asmapplication0/50/0ONLINEONLINErac1
ora....C1.lsnrapplication0/50/0ONLINEONLINErac1
ora.rac1.gsdapplication0/50/0ONLINEONLINErac1
ora.rac1.onsapplication0/30/0ONLINEONLINErac1
ora.rac1.vipapplication0/00/0ONLINEONLINErac1
ora....SM2.asmapplication0/50/0ONLINEONLINErac2
ora....C2.lsnrapplication0/50/0ONLINEONLINErac2
ora.rac2.gsdapplication0/50/0ONLINEONLINErac2
ora.rac2.onsapplication0/30/0ONLINEONLINErac2
ora.rac2.vipapplication0/00/0ONLINEONLINErac2
ora.racdb.dbapplication0/10/1ONLINEONLINErac1
ora....b1.instapplication0/50/0ONLINEONLINErac1
ora....b2.instapplication0/50/0ONLINEONLINErac2

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
Fordetailedhelponeachcommandandobjectanditsoptionsuse:
srvctl<command><object>-h

获取更详细的帮助
[oracle@rac2~]$srvctlstartasm-h
Usage:srvctlstartasm-n<node_name>[-i<asm_inst_name>][-o<start_options>][-c<connect_str>|-q]-n<node>Nodename-i<asm_inst_name>ASMinstancename-o<start_options>Optionstostartupcommand(e.g.open,mount,ornomount)-c<connstr>Connectstring(default:/assysdba)-qQueryconnectstringfromstandardinput-hPrintusage

关闭RAC数据库

[oracle@rac2~]$srvctlstopdatabase-dracdb
[oracle@rac2~]$crs_stat-t-v
NameTypeR/RAF/FTTargetStateHost
----------------------------------------------------------------------ora....SM1.asmapplication0/50/0ONLINEONLINErac1
ora....C1.lsnrapplication0/50/0ONLINEONLINErac1
ora.rac1.gsdapplication0/50/0ONLINEONLINErac1
ora.rac1.onsapplication0/30/0ONLINEONLINErac1
ora.rac1.vipapplication0/00/0ONLINEONLINErac1
ora....SM2.asmapplication0/50/0ONLINEONLINErac2
ora....C2.lsnrapplication0/50/0ONLINEONLINErac2
ora.rac2.gsdapplication0/50/0ONLINEONLINErac2
ora.rac2.onsapplication0/30/0ONLINEONLINErac2
ora.rac2.vipapplication0/00/0ONLINEONLINErac2
ora.racdb.dbapplication0/10/1OFFLINEOFFLINE
ora....b1.instapplication0/50/0OFFLINEOFFLINE
ora....b2.instapplication0/50/0OFFLINEOFFLINE

关闭各节点的ASM实例

[oracle@rac2~]$srvctlstopasm-nrac1
[oracle@rac2~]$srvctlstopasm-nrac2
[oracle@rac2~]$crs_stat-t-v
NameTypeR/RAF/FTTargetStateHost
----------------------------------------------------------------------ora....SM1.asmapplication0/50/0OFFLINEOFFLINE
ora....C1.lsnrapplication0/50/0ONLINEONLINErac1
ora.rac1.gsdapplication0/50/0ONLINEONLINErac1
ora.rac1.onsapplication0/30/0ONLINEONLINErac1
ora.rac1.vipapplication0/00/0ONLINEONLINErac1
ora....SM2.asmapplication0/50/0OFFLINEOFFLINE
ora....C2.lsnrapplication0/50/0ONLINEONLINErac2
ora.rac2.gsdapplication0/50/0ONLINEONLINErac2
ora.rac2.onsapplication0/30/0ONLINEONLINErac2
ora.rac2.vipapplication0/00/0ONLINEONLINErac2
ora.racdb.dbapplication0/10/1OFFLINEOFFLINE
ora....b1.instapplication0/50/0OFFLINEOFFLINE
ora....b2.instapplication0/50/0OFFLINEOFFLINE

关闭各节点的服务包括 gsd,ons,vip,lisener 监听器等

[oracle@rac2~]$srvctlstopnodeapps-nrac1
[oracle@rac2~]$srvctlstopnodeapps-nrac2
[oracle@rac2~]$crs_stat-t-v
NameTypeR/RAF/FTTargetStateHost
----------------------------------------------------------------------ora....SM1.asmapplication0/50/0OFFLINEOFFLINE
ora....C1.lsnrapplication0/50/0OFFLINEOFFLINE
ora.rac1.gsdapplication0/50/0OFFLINEOFFLINE
ora.rac1.onsapplication0/30/0OFFLINEOFFLINE
ora.rac1.vipapplication0/00/0OFFLINEOFFLINE
ora....SM2.asmapplication0/50/0OFFLINEOFFLINE
ora....C2.lsnrapplication0/50/0OFFLINEOFFLINE
ora.rac2.gsdapplication0/50/0OFFLINEOFFLINE
ora.rac2.onsapplication0/30/0OFFLINEOFFLINE
ora.rac2.vipapplication0/00/0OFFLINEOFFLINE
ora.racdb.dbapplication0/10/1OFFLINEOFFLINE
ora....b1.instapplication0/50/0OFFLINEOFFLINE
ora....b2.instapplication0/50/0OFFLINEOFFLINE

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~]$srvctlstartnodeapps-nrac1
[oracle@rac2~]$srvctlstartnodeapps-nrac2
[oracle@rac2~]$srvctlstartasm-nrac1
[oracle@rac2~]$srvctlstartasm-nrac2
[oracle@rac2~]$srvctlstartinstance-dracdb-iracdb1-omount
[oracle@rac2~]$srvctlstartinstance-dracdb-iracdb2-oopen

[oracle@rac2~]$sqlplussys/123456@racdb1assysdba

sql*Plus:Release10.2.0.1.0-ProductiononSatNov2612:15:572011Copyright(c)1982,2005,Oracle.Allrightsreserved.

Connectedto:
OracleDatabase10gEnterpriseEditionRelease10.2.0.1.0-64bitProduction
WiththePartitioning,RealApplicationClusters,OLAPandDataMiningoptions

sql>selectopen_mode,namefromv$database;

OPEN_MODENAME---------------------------------------------------------MOUNTEDRACDB

sql>connsys/123456@racdb2assysdba
Connected.
sql>selectopen_mode,namefromv$database;

OPEN_MODENAME---------------------------------------------------------READWRITERACDB

关闭RAC节点的某个实例

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 -vName 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