After you configure Storage Foundation High Availability with the installer, the installer starts Storage Foundation High Availability with I/O fencing in disabled mode. To use I/O fencing in the cluster for data integrity, you must configure I/O fencing.
You can configure either disk-based I/O fencing or server-based I/O fencing. If your enterprise setup has multiple clusters that use VCS for clustering, Symantec recommends you to configure server-based I/O fencing. After you perform the preparatory tasks, you can use the installsf to configure I/O fencing. You can also use response files or manually configure I/O fencing.
Figure: Workflow to configure I/O fencing illustrates a high-level flowchart to configure I/O fencing for the Storage Foundation High Availability cluster.