Are you looking for a way to implement virtual server high availability that does not require the costs and complexity of separate external shared storage devices? Well here is a simple way to get that:
HP StorageWorks P4000 Virtual SAN Appliance Software (VSA) enables the benefits of a physical SAN with the ability to transform captive server disk drives and build a virtual iSCSI SAN.
Costs and complexity of stranded storage go away.
Download: HP StorageWorks P4000 Virtual SAN Appliance Trial Software (60 days)