Dynamic Reconfiguration With Quorum Devices

There are a few issues you must consider when completing dynamic reconfiguration (DR) operations on quorum devices in a cluster.

• 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 environment 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.

• Sun Cluster rejects DR remove-board operations that are performed when an interface is present that is configured for a quorum device.

• If the DR operation would pertain to an active device, Sun Cluster rejects the operation and identifies the devices that would be affected by the operation.

To remove a quorum device, you must complete the following steps, in the order indicated.

Table 4–2 Task Map: Dynamic Reconfiguration with Quorum Devices

Task	For Instructions, Go To...
1. Enable a new quorum device to replace the one being removed.	How to Add a Quorum Device
2. Disable the quorum device to be removed.	How to Remove a Quorum Device
3. Perform the DR remove operation on the device being removed.	Sun Enterprise 10000 DR Configuration Guide and the Sun Enterprise 10000 Dynamic Reconfiguration Reference Manual (from theSolaris 8 on Sun Hardware and Solaris 9 on Sun Hardware collections.)