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scan ip的手动切换

Oracle 作者:desert_xu 时间:2015-12-16 11:56:23 0 删除 编辑

检查RAC的状态,从状态信息可以看到scan_listener 运行在rac-1节点。

[grid@rac-1 ~]$ crsctl stat res -t
--------------------------------------------------------------------------------
NAME           TARGET  STATE        SERVER                   STATE_DETAILS      
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.LISTENER.lsnr
               ONLINE  ONLINE       rac-1                                       
               ONLINE  ONLINE       rac-2                                       
ora.LISTENER_RAC.lsnr
               ONLINE  ONLINE       rac-1                                       
               ONLINE  ONLINE       rac-2                                       
ora.ORADATA.dg
               ONLINE  ONLINE       rac-1                                       
               ONLINE  ONLINE       rac-2                                       
ora.ORC_VOTE.dg
               ONLINE  ONLINE       rac-1                                       
               ONLINE  ONLINE       rac-2                                       
ora.asm
               ONLINE  ONLINE       rac-1                    Started            
               ONLINE  ONLINE       rac-2                    Started            
ora.gsd
               OFFLINE OFFLINE      rac-1                                       
               OFFLINE OFFLINE      rac-2                                       
ora.net1.network
               ONLINE  ONLINE       rac-1                                       
               ONLINE  ONLINE       rac-2                                       
ora.ons
               ONLINE  ONLINE       rac-1                                       
               ONLINE  ONLINE       rac-2                                       
ora.registry.acfs
               OFFLINE OFFLINE      rac-1                                       
               ONLINE  ONLINE       rac-2                                       
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
      1        ONLINE  ONLINE       rac-1
                                       
ora.cvu
      1        ONLINE  ONLINE       rac-1                                       
ora.oc4j
      1        ONLINE  ONLINE       rac-1                                       
ora.oratest.db
      1        ONLINE  ONLINE       rac-2                    Open               
      2        ONLINE  ONLINE       rac-1                    Open               
ora.rac-1.vip
      1        ONLINE  ONLINE       rac-1                                       
ora.rac-2.vip
      1        ONLINE  ONLINE       rac-2                                       
ora.scan1.vip
      1        ONLINE  ONLINE       rac-1                                       
[grid@rac-1 ~]$

进一步确认scan ip 和 scan listener 运行在那个节点

[grid@rac-1 ~]$ srvctl status scan
SCAN VIP scan1 is enabled
SCAN VIP scan1 is running on node rac-1

[grid@rac-1 ~]$ srvctl status scan_listener
SCAN Listener LISTENER_SCAN1 is enabled
SCAN listener LISTENER_SCAN1 is running on node rac-1

从信息看,scan ip 运行在rac-1 节点。下面手动将scan ip 切换到rac-2 节点

我们将使用srvctl relocate scan_listener命令,下面是这个命令的帮助文档

[grid@rac-1 ~]$ srvctl relocate scan_listener -help

Temporarily relocate SCAN listener from one node of the cluster to another.

Usage: srvctl relocate scan_listener -i <ordinal_number> [-n <node_name>]
    -i <scan_ordinal_number> Ordinal number of IP address
    -n <node_name>           SCAN VIP node name
    -h                       Print usage
[grid@rac-1 ~]$

执行该命令

[grid@rac-1 ~]$ srvctl relocate scan_listener -i 1 -n rac-2

检查scan ip 信息,发现scan ip 已经运行在rac-2节点了。

[grid@rac-1 ~]$ srvctl status scan
SCAN VIP scan1 is enabled
SCAN VIP scan1 is running on node rac-2

[grid@rac-1 ~]$ srvctl status scan_listener
SCAN Listener LISTENER_SCAN1 is enabled
SCAN listener LISTENER_SCAN1 is running on node rac-2

[grid@rac-1 ~]$ crsctl stat res -t
--------------------------------------------------------------------------------
NAME           TARGET  STATE        SERVER                   STATE_DETAILS      
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.LISTENER.lsnr
               ONLINE  ONLINE       rac-1                                       
               ONLINE  ONLINE       rac-2                                       
ora.LISTENER_RAC.lsnr
               ONLINE  ONLINE       rac-1                                       
               ONLINE  ONLINE       rac-2                                       
ora.ORADATA.dg
               ONLINE  ONLINE       rac-1                                       
               ONLINE  ONLINE       rac-2                                       
ora.ORC_VOTE.dg
               ONLINE  ONLINE       rac-1                                       
               ONLINE  ONLINE       rac-2                                       
ora.asm
               ONLINE  ONLINE       rac-1                    Started            
               ONLINE  ONLINE       rac-2                    Started            
ora.gsd
               OFFLINE OFFLINE      rac-1                                       
               OFFLINE OFFLINE      rac-2                                       
ora.net1.network
               ONLINE  ONLINE       rac-1                                       
               ONLINE  ONLINE       rac-2                                       
ora.ons
               ONLINE  ONLINE       rac-1                                       
               ONLINE  ONLINE       rac-2                                       
ora.registry.acfs
               OFFLINE OFFLINE      rac-1                                       
               ONLINE  ONLINE       rac-2                                       
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
      1        ONLINE  ONLINE       rac-2                                       
ora.cvu
      1        ONLINE  ONLINE       rac-1                                       
ora.oc4j
      1        ONLINE  ONLINE       rac-1                                       
ora.oratest.db
      1        ONLINE  ONLINE       rac-2                    Open               
      2        ONLINE  ONLINE       rac-1                    Open               
ora.rac-1.vip
      1        ONLINE  ONLINE       rac-1                                       
ora.rac-2.vip
      1        ONLINE  ONLINE       rac-2                                       
ora.scan1.vip
      1        ONLINE  ONLINE       rac-2                                       
[grid@rac-1 ~]$

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