Transmission Control Protocol/Internet Protocol (TCP/IP).
The Transmission Control Protocol and the Internet
Protocol, which together provide reliable end-to-end connections between applications over interconnected networks of
different types.
True Image data view.
A data view that allows the file to be restored in the event of accidental deletion. It consists
of ‘point-in-time’ images that provide a near-instant virtual copy of an entire storage volume.
TSM.
See Tivoli Storage Manager.
twinaxial cable.
A three-conductor cable with the two inner conductors serving to carry the signal energy, and the
outer conductor serving as ground. The three conductors are insulated from each other.
U
universal serial bus (USB).
A serial interface standard for telephony and multimedia connections to personal
computers.
unshielded twisted pair (UTP).
A cable medium with one or more pairs of twisted insulated copper conductors
bound in a single plastic sheath.
USB.
See universal serial bus.
V
VLAN.
See virtual local area network.
VLU.
Volume logical unit.
VLUN.
See virtual logical unit.
virtual connection.
A connection set up between two points that appears to the user to be available as a dedicated
connection. This phantom connection can be maintained indefinitely or can be ended at will. The three states of a
virtual connection are up, down or suspended.
virtual local area network (VLAN).
A logical association of switch ports based upon a set of rules or criteria such as
MAC addresses, protocols, network address, or multicast address. This permits resegmentation of the LAN without
requiring physical rearrangement.
virtual logical unit (VLUN).
A subset of a logical drive.
virtual port.
Logical construct that corresponds to a logical adapter for a switched network port. A virtual port
organizes outgoing switched logical links by specifying incoming call acceptance criteria, by dynamically building and
relating logical adapters with selected hardware adapter ports, and by specifying adapter-related data link control
(DLC) profiles for use with those logical adapters.
VNI.
Virtual network interface.
volume.
(1) Unit of storage on disk, tape, or other data recording media. (2) A logical disk visible to the appliance
over a storage network. A member of a single storage network of 1 to
n
fabrics. It can have 1 to
n
path groups of 1 to
n
equivalent paths.
W
Windows Internet Name Service (WINS).
Program that provides a distributed database for registering and querying
dynamic NetBIOS names to IP address mapping in a routed network environment.*
WINS.
See Windows Internet Naming Service.
Windows networking.
Networking file-system protocol for the Windows operating system.
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