Dell PowerVault TL4000 - Manual (Page 298)

TCP/IP
Transmission Control Protocol/Internet Protocol.
TCU Tape control unit.
TH Thermal.
thread/load operation
A procedure that places tape along the tape path.
TM Tapemark.
transport mode
End-to-end communications security in which the end-point computers do
the security processing.
trusted certification
In cryptography, a trustworthy certificate that is not registered with a
certificate authority.
tunnel mode
Port-to-port communications security in which security is provided to
several machines by a single node.
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
word A character string that is convenient for some purpose to consider as an
entity.
World Wide Node Name (WWNN)
A unique character string which identifies Fibre Channel Host Bus
adapters (HBA).
I-18 Dell PowerVault TL2000 Tape Library and TL4000 Tape Library User's Guide