Can you give more details, what kind of issues?- does this scheme (VMware uses as a storage DSS through FC) work in general or not in current versions of the products ... failover of storage server is not an issue at this time for me ... I am just looking for universal storage thar can act as NAS+SAN (iSCSI+FC support in target mode) - thats all ... do you think I can use DSS for that?
SANHarmony (that has the same functionality) only announced, but not released yet ...

Sorry for insistence, but I really need someone with experience with that configuration.