Tagged with Oracle

Marek Skrobacki

Oracle RAC 11gR2 addresses unreachable after failover

Today I have been troubleshooting very interesting issue. Our DBAs deployed new cluster of Oracle RACs with the ability to relocate the IP address between the nodes. When failover is triggered the IP is deactivated on a failing node, and is being configured on the standby node. Unfortunately for some reason, new node sends a proper gratuitous ARP with it’s new MAC but shortly after this it sends second gratuitous ARP with MAC ...

Oracle Arp Failover Gratuitous Arp