Web site (continued)
IBM storage servers xix
IBM Subsystem Device Driver xix
SAN Data Gateway xix
weight, ESS 50
work sheet
Communication Resources 65, 74
Copy Services 89
workstation, ESSNet 58
world-wide port name
definition 118
write
hit (definition) 118
write penalty 118
X
XRC
feature codes by terabytes 41
XRC. Also see Extended Remote Copy 19
XRC (definition) 118
128
ESS Introduction and Planning