IBM TS3310 Maintenance Information page 519

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 contained within the tape drive that
requires nonvolatile storage used by functional areas of the drive, and
information required for manufacturing, RAS, and engineering.
W
word A character string that is convenient for some purpose to consider as an
entity.
WORM
Write Once Read Many.
Write command.
Write
WT world trade.
WWCID
World Wide Cartridge Identifier.
WWN World Wide Name.
WWNN
World Wide Node Name.
WWPN
World Wide Port Name.
X
XR External register.
External register address register.
XRA
H-15
Glossary