Dynamic Reconfiguration With Global Devices

You must consider the following issues when completing dynamic reconfiguration operations on disk and tape devices in a cluster.

• All of the requirements, procedures, and restrictions that are documented for the Oracle Solaris dynamic reconfiguration feature also apply to Oracle Solaris Cluster dynamic reconfiguration support. The only exception is for the operating system quiescence operation. Therefore, review the documentation for the Oracle Solaris dynamic reconfiguration feature before using the dynamic reconfiguration feature with Oracle Solaris Cluster software. You should review in particular the issues that affect non-network IO devices during a dynamic reconfiguration detach operation.

• Oracle Solaris Cluster rejects dynamic reconfiguration remove-board operations on active devices in the primary node. Dynamic reconfiguration operations can be performed on inactive devices in the primary node and on any devices in the secondary nodes.

• After the dynamic reconfiguration operation, cluster data access continues as before.

• Oracle Solaris Cluster rejects dynamic reconfiguration operations that impact the availability of quorum devices. See Dynamic Reconfiguration With Quorum Devices for more information.

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Caution  -  If the current primary node fails while you are performing the dynamic reconfiguration operation on a secondary node, cluster availability is impacted. The primary node will have no place to fail over until a new secondary node is provided.

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To perform dynamic reconfiguration operations on global devices, complete the following steps in the order indicated.