Dynamic Reconfiguration With Cluster Interconnects

You must consider a few issues when completing dynamic reconfiguration (DR) operations on cluster interconnects.

• All of the requirements, procedures, and restrictions that are documented for the Solaris DR feature also apply to Sun Cluster DR support (except for the operating system quiescence operation). Therefore, review the documentation for the Solaris DR feature before using the DR feature with Sun Cluster software. You should review in particular the issues that affect non-network IO devices during a DR detach operation.

• The Sun Cluster software rejects DR remove-board operations performed on active private interconnect interfaces.

• You must completely remove an active adapter from the cluster in order to perform DR on an active cluster interconnect. Use the scsetup menu or the appropriate scconf commands.

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Caution –

Sun Cluster software requires that each cluster node has at least one functioning path to every other cluster node. Do not disable a private interconnect interface that supports the last path to any cluster node.

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Complete the following procedures in the order indicated when performing DR operations on public network interfaces.

Table 7–2 Task Map: Dynamic Reconfiguration with Public Network Interfaces

Task	Instructions
1. Disable and remove the interface from the active interconnect	Dynamic Reconfiguration With Public Network Interfaces
2. Perform the DR operation on the public network interface.	Sun Enterprise 10000 DR Configuration Guide , Sun Enterprise 10000 Dynamic Reconfiguration Reference Manual (from the Solaris 9 on Sun Hardware, and Solaris 10 on Sun Hardware collections)