DR Operations in a Cluster With DR-Enabled Servers

Some procedures in the current Sun Cluster 3.0 12/01 Hardware Guide instruct the user to shut down and power off a cluster node before adding, removing, or replacing a host adapter or a public network adapter (PNA).

However, if the node is a server that is enabled with the DR feature, the user does not have to power off the node before adding, removing, or replacing the host adapter or PNA. Instead, do the following:

1. Follow the procedure steps in the Hardware Guide, including any steps for disabling and removing the host adapter or PNA from the active cluster interconnect.

   See the Sun Cluster 3.0 12/01 System Administration Guide for instructions on removing cluster host adapters (transport adapters) or PNAs from the cluster configuration.

2. Skip any step that instructs you to power off the node, where the purpose of the power-off is to add, remove, or replace a host adapter or PNA.

3. Perform the DR operation (add, remove, or replace) on the host adapter or PNA.

4. Continue with the next step of the procedure in the Hardware Guide.

For conceptual information about Sun Cluster 3.0 12/01 support of the DR feature, see the Sun Cluster 3.0 12/01 Concepts document.