Dell PowerVault LTO4-120HH - Manual (Page 23)

tape path. Within a tape drive, the channel in which the media moves.
V
VDC. Volts DC (direct current).
volt. The SI (international) unit of potential difference and electromotive force. Formally defined as the difference of electric potential between two points of a
conductor that carries a constant current of one ampere when the power dissipated between these points is equal to one watt.
W
wet bulb temperature. The temperature at which pure water must be evaporated adiabatically at constant pressure into a given sample of air in order to saturate the
air under steady-state conditions. Wet bulb temperature is read from a wet bulb thermometer.
write. To make a permanent or transient recording of data in a storage device or on a data medium.
write protected. Applicable to a tape cartridge, the condition that exists when some logical or physical mechanism prevents a device from writing on the tape in that
cartridge.
write-protect switch. Located on the tape cartridge, a switch that prevents accidental erasure of data. Pictures of a locked and unlocked padlock appear on the
switch. When you slide the switch to the locked padlock, data cannot be written to the tape. When you slide the switch to the unlocked padlock, data can be written to
the tape.
Write/Read test. Part of the Test Head diagnostic, a procedure that determines whether the tape drive can correctly read from and write to tape.
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