【RAC】如何修改SCAN IP的IP地址、名称、端口等信息

【RAC】如何修改SCAN IP的IP地址、名称、端口等信息 RAC 增加SCAN IP ： http://blog.itpub.net/26736162/viewspace-2155652/ How to Update the IP Address of the SCAN VIP Resources (ora.scan{n}.vip) (文档 ID 952903.1)

In this Document

Goal Solution References

APPLIES TO: Oracle Database - Enterprise Edition - Version 11.2.0.1 and later Information in this document applies to any platform. GOAL

The purpose of this document is to explain how to change the IP addresses associated with the SCAN VIPs in a 11gR2 Grid (CRS) environment.  The IP addresses associated with the SCAN VIP resources are initially set when the SCAN resources are created.  Any changes to the DNS entry for the SCAN are not automatically propagated to the clusterware and need to be done manually. This applies only to installations that are not using GNS. The information in this note can also be helpful in cases where SCAN was originally configured with just one address and is now being expanded to accommodate three IP addresses.

SOLUTION

1. Before the SCAN VIPs can be changed, the entry for the SCAN name on the Domain Name Server (DNS) needs to be updated with the new IP addresses. This usually will be done by a network administrator. To check the current setting, the following command can be used:
   nslookup 
2. To check the current IP address(es) of the SCAN VIPs, run the following commands as the root user:
   $GRID_HOME/bin/srvctl config scan
3. Stop the SCAN listeners and SCAN
   $GRID_HOME/bin/srvctl stop scan_listener  $GRID_HOME/bin/srvctl stop scan
4. Next refresh the SCAN VIPs with the new IP addresses from the DNS entry:
   $GRID_HOME/bin/srvctl modify scan -n