DR Clustering Considerations for Public Network Interfaces

DR remove operations can be performed on public network interfaces that are not active. If the DR remove-board operation would affect an active public network interface, the system rejects the operation and identifies the interface that would be affected by the operation. Any active public network interface must first be removed from the status of being an active adapter instance in a network adapter fail over (NAFO) group.

If the active network adapter fails while you are performing the DR remove operation on the disabled network adapter, availability is impacted. The active adapter has no place to fail over for the duration of the DR operation.

The following steps describe a brief summary of the procedure for performing a DR remove operation on a public network interface. See the Sun Cluster 3.0 U1 System Administration Guide for detailed instructions on how to perform these actions.

1. Switch the active adapter to be a backup adapter so that it can be removed from the NAFO group.

2. Remove the adapter from the NAFO group.

3. Perform the DR operation on the public network interface.