{HEAD ~ The logical data volumes} typically have performance requirements that cannot be met by {TAIL ~ a single storage array} 
{ HEAD ~ The logical data volumes } typically have performance requirements that can not be met by { TAIL ~ a single storage array }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL