About I/O Fencing

Note:

I/O Fencing is completely automatic. You do not need to configure anything manually to utilize I/O Fencing.

I/O Fencing protects the data on shared disks when nodes in a cluster detect a change in the cluster membership that indicates a split-brain condition.

The fencing operation determines the following:

This decision prevents possible data corruption.

In the event of a network partition, SFW I/O Fencing technology uses the outcome of Microsoft Failover Clustering arbitration process to choose which nodes to allow access to the shared storage and which nodes to eject from the cluster.