(often called a “binary terabyte” and abbreviated
TiB).
TCP/IP
Transmission Control Protocol/Internet Protocol.
The set of communications protocols used for
the Internet and other similar networks. TCP
provides reliable delivery of messages between
networked computers. IP uses numeric IP
addresses to join network segments.
TiB
A binary terabyte. Computed as 2^40
(1,099,511,627,776) bytes. See TB.
trap
An asynchronous notification from an agent
(such as a Nexsan storage system) to an
SNMP manager. Destination addressing for
traps is determined in an application-specific
manner, typically through trap configuration
variables in the Management Information Base.
trap community
Defines an SNMP manager to which the SNMP
agent sends SNMP trap messages. Trap
communities consist of community name/IP
address pairs.
U
UDP
User Datagram Protocol. A protocol that allows
computer applications to send messages to
other hosts on a TCP/IP network without
requiring prior communications to set up special
transmission channels or data paths.
UDP port
An application-specific or process-specific
software construct used by UDP as a
communications endpoint. Identified by its
number and the IP address with which it is
associated.
V
VDS Storage Provisioning
One of six Nexsan Storage Tools. Allows users
to create and manage storage volumes on
connected Nexsan storage systems directly
from a Windows-based server.
volume
An area of usable storage that is addressed as a
single unit as if it were a separate, physical disk
drive. Volumes can exist on a single disk drive or
on a RAID that spans multiple disk drives.
W
WAN
See “wide area network”.
wide area network
A telecommunication network that covers a
broad area or that links across metropolitan,
regional, or national boundaries. Wide area
networks are used to connect local area
networks and other types of networks together,
so that users and computers in one location can
communicate with users and computers in other
locations.
World Wide Name
A unique identifier which identifies a particular
Fiber Channel or SAS target. Nexsan storage
units use two kinds of World Wide Names:
World Wide Node Names (WWNN), which
identify a device; and World Wide Port Names
(WWPN), which identify a specific port on the
device.
WWN
See “World Wide Name”.
Z
ZIP file
A compressed data storage or archive file that
uses the ZIP file format. A ZIP file contains one
Glossary
Nexsan High-Density Storage
User Guide
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