Hi,
Previously, SFHA or SFCFS cluster used to support non-SCSI3 server-based I/O fencing in virtual environments. i.e. you need to configure CPS (coordination point servers). For details please see https://sort.symantec.com/public/documents/sfha/6.0/aix/productguides/html/sfcfs_install/ch10s04.htm
But now it introduces support for SCSI3 I/O fencing with SFHA and SFCFS clusters of VMware Virtual
Machines with some limittaions. For details, please see http://clientui-kb.symantec.com/resources/sites/BUSINESS/content/live/TECHNICAL_SOLUTION/169000/TECH169366/en_US/TechNote_VMware_IOFencing.pdf