IBM TS2900 Setup, Operator, And Service Manual page 279

U
UART Universal asynchronous receiver/transmitter.
UL Underwriter's Laboratories.
unload
Prepare the tape cartridge for removal from the drive.
utilities
Utility programs.
utility programs
A computer program in general support of the processes of a computer; for instance, a diagnostic
program.
uv Under voltage.
V
VOLSER
Volume serial number.
volume
A certain portion of data, together with its data carrier, that can be handled conveniently as a
unit.
VPD Vital product data. The information that is contained within the tape drive that requires
nonvolatile storage that is used by functional areas of the drive, and information that is required
for manufacturing, RAS, and engineering.
W
A character string that is convenient for some purpose to consider as an entity.
word
World Wide Node Name (WWNN)
A unique character string which identifies Fibre Channel Host Bus adapters (HBA).
WORM
Write Once Read Many.
Write Write command.
WT World trade.
WWCID
Worldwide Cartridge Identifier.
WWN Worldwide Name.
WWNN
Worldwide Node Name.
WWPN
Worldwide port name.
X
XR External register.
XRA External register address register.
253
Glossary