Dell PowerVault TL4000 - Manual (Page 64)

Glossary
Page 62 Dell Model TL24iSCSIxSAS 1Gb iSCSI to SAS User’s Guide Rev.C
14. Glossary
Broadcast-address - a type of networking address reserved for sending messages to all machines on a
given network segment.
Bridge - a hardware device to connect two topologies together.
CAT5E - Category 5 Ethernet network cabling enhanced - A standard of network cabling to allow data
transmission of speeds up to 1000
Mbs (giga-bit Ethernet).
CHAP - Challenge Handshake Authentication Protocol - An authentication technique for confirming the
identity of one computer to another. Described in RFC 1994.
CID - Connection Identifier - an initiator generated 16-bit number presented during the login phase which
uniquely identifies a connection between two iSCSI devices.
CPU - An abbreviation of central processing unit. The CPU is the brain of the computer.
Data Digest - a code used to insure data integrity of data blocks. Checksums and CRCs are common types
of digests.
Ethernet - IEEE 802.3 standard for LANs (local area networks) allowing multiple computers to connect on
the same network using IP as the communication protocol.
Firmware - p roprietary code that is usually delivered as microcode as part of an operating system. Firmware
is more efficient than software loaded from an alterable medium and more adaptable to change than pure
hardware circuitry. An example of firmware is the Basic Input/Output System (BIOS) in read-only memory
(ROM) on a PC motherboard.
Gigabit Ethernet - Ethernet technology that transmits data at speeds up to 1 Gigabit per second (Gbps).
GUI - Graphical User Interface - graphical user interface using icons and a pointer for operations.
IP-address - an identifier for a computer or device on a TCP/IP network. Networks using the TCP/IP protocol
route messages based on the IP-address of the destination. The format of an IP-address is a 32-bit numeric
address written as four numbers separated by periods. Each number can be zero to 255. For example,
1.160.10.240 could be an IP-address.
IPS - Internet Protocol Storage – IP-protocol classes or devices which use IP-protocol to move data in a
storage network. iSCSI is an example of IPS protocols.
IQN - iSCSI Qualified Name iSCSI naming convention that uniquely identifies every device. An IQN is up to
255 characters long.
iSCSI - Internet Small Computer Systems Interface A protocol to transport SCSI commands on IP networks.
This allows data storage devices to be linked together over IP-networks.
iSNS - allows automated discovery, management, and configuration of iSCSI from a central point.
LAN - Local area network. A computer network within a limited area.