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## Dynamic Reconfiguration Operations For Oracle Solaris Cluster Nodes

The Oracle Solaris Cluster environment supports Oracle Solaris dynamic reconfiguration (DR) operations on qualified servers. Throughout the Oracle Solaris Cluster Hardware Administration Collection, there are procedures that require that you add or remove transport adapters or public network adapters in a cluster node. Contact your service provider for a list of storage arrays that are qualified for use with DR-enabled servers.

Note - Review the documentation for the Oracle Solaris DR feature on your hardware platform before you use the DR feature with Oracle Solaris Cluster software. All of the requirements, procedures, and restrictions that are documented for the Oracle Solaris DR feature also apply to Oracle Solaris Cluster DR support (except for the operating environment quiescence operation).

## DR Operations in a Cluster With DR-Enabled Servers

Some procedures within the Oracle Solaris Cluster Hardware Administration Collection instruct the user to shut down and power off a cluster node before you add, remove, or replace a transport 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 you add, remove, or replace the transport adapter or PNA. Instead, do the following:

1. Follow the procedure steps in Oracle Solaris Cluster Hardware Administration Collection, including any steps for disabling and removing the transport adapter or PNA from the active cluster interconnect.

   See the Oracle Solaris Cluster System Administration Guide for instructions about how to remove 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 transport adapter or PNA.
3. Perform the DR operation (add, remove, or replace) on the transport adapter or PNA.
4. Continue with the next step of the procedure in Oracle Solaris Cluster Hardware Administration Collection.

   For conceptual information about Oracle Solaris Cluster support of the DR feature, see your Oracle Solaris Cluster Concepts Guide document.

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