这次帮客户搭建了一套oracle 11gR2 rac for aix环境，scan vip因为网络调整需要，需要更改以前设置好的scan

vip,是采用/etc/hosts的方式，比如将scan vip 192.168.128.100改为1.7.3.1

下面是具体步骤：

1.crs集群是打开的

2.修改两边/etc/hosts 将192.168.128.100改为1.7.3.1

3.srvctl config scan 查看当前vip设置

      p570a@root#./srvctl config scan
      SCAN name: 192.168.128.100, Network: 1/192.168.128.0/255.255.255.0/en0
      SCAN VIP name: scan1, IP: /scan-vip/192.168.128.100

4.用root用户停止scan_listener 和sacn vip

      $GRID_HOME/bin/srvctl stop scan_listener
   $GRID_HOME/bin/srvctl stop scan
   $GRID_HOME/bin/srvctl status scan

SCAN VIP scan1 is enabled
SCAN VIP scan1 is not running

      $GRID_HOME/bin/srvctl status scan_listener
   SCAN Listener LISTENER_SCAN1 is enabled
   SCAN listener LISTENER_SCAN1 is not running

5.用root用户修改scan vip

$GRID_HOME/bin/srvctl modify scan -n 1.7.3.1

6.检查是否修改成功

       p570a@root#./srvctl config scan
      SCAN name: 10.76.31.111 , Network: 1/10.76.31.0/255.255.255.0/en0
      SCAN VIP name: scan1, IP: /scan-vip/1.7.3.1

7.启动scan和scan_listener

$GRID_HOME/bin/srvctl start scan
$GRID_HOME/bin/srvctl start scan_listener

修改成功

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oracle 11gR2 如何修改scan vip 地址 /etc/hosts方式

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