Installing SFCFSHA automatically enables the Flexible Storage Sharing feature (FSS). No additional installation steps are required. LLT, GAB, and fencing must be configured before administering FSS. The fencing coordination points can either be SCSI-3 PR capable shared storage or CP servers.
See the Symantec Storage Foundation Cluster File System High Availability Installation Guide.
FSS administrative tasks include exporting a disk for FSS, setting the FSS option on a disk group, setting the host prefix for intuitive naming of devices connected to the host, displaying exported disks and network shared disks, and optionally tuning FSS memory consumption.