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6.3. Dual Power and Multipath FC Fencing Considerations

To ensure that fencing completely removes a node that has dual power supplies or multiple paths to FC storage, both power supplies and all paths to FC storage for that node must be fenced.

To fence dual power supplies and multiple paths to FC storage, you need to consider the following actions when creating the fence.ccs and nodes.ccs files:

GFS supports dual power-supply fencing with the APC MasterSwitch only; it supports multipath FC fencing with Brocade and Vixel switches. For more information about creating the fence.ccs and nodes.ccs files, refer to Section 6.6 Creating the fence.ccs File and Section 6.7 Creating the nodes.ccs File. For more information about fencing, refer to Chapter 10 Using the Fencing System.