IBM TS4300 3555

Write
Write command.
WT
World trade.
WWCID
Worldwide Cartridge Identier.
WWN
Worldwide Name.
WWNN
Worldwide Node Name.
WWPN
Worldwide port name.
X
XR
External register.
XRA
External register address register.
226 IBM TS4300 Tape Library Machine Type 3555: User's Guide