Dynamic Reconfiguration Operations For Sun Cluster Nodes (5/02)

The Sun Cluster 3.0 5/02 release supports Solaris 8 dynamic reconfiguration (DR) operations on qualified servers. The current Sun Cluster 3.0 12/01 Hardware Guide does not specifically consider scenarios in which the cluster nodes have been enabled with the DR feature.

In the Sun Cluster 3.0 12/01 Hardware Guide, some procedures require that the user add or remove host adapters or public network adapters in a cluster node. The storage arrays in the Sun Cluster 3.0 12/01 Hardware Guide that are currently qualified for use with the Solaris 8 DR feature are listed here.

• Sun StorEdge A5x00

• Sun StorEdge A3500FC

• Sun StorEdge T3 (single-controller configuration)

• Sun StorEdge 99x0 (direct-attach configuration)

Review the documentation for the Solaris 8 DR feature on your hardware platform before using the DR feature with Sun Cluster software. All of the requirements, procedures, and restrictions that are documented for the Solaris 8 DR feature also apply to Sun Cluster 3.0 12/01 DR support (except for the operating environment quiescence operation).

Documentation for DR on currently qualified server platforms are listed here.

• Sun Enterprise 10000 Dynamic Reconfiguration User Guide

• Sun Enterprise 10000 Dynamic Reconfiguration Reference Manual

• Sun Fire 6800, 4810, 4800, and 3800 Systems Dynamic Reconfiguration User Guide

• Sun Fire 6800, 4810, 4800, and 3800 Systems Dynamic Reconfiguration Release Notes

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.