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  • 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

    [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   

     

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  • 原文地址:https://www.cnblogs.com/jerryxing/p/2724669.html
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