ATTO Technology 2500C operation manual Appendix C Glossary, Term Definition

Appendix C Glossary

More information is available through the Storage Networking Industry Association

(www.snia.org/education/dictionary), the Network Data Management Task Force (www.ndmp.org), and the IETF (www.ietf.org).

Term	Definition
Btl	Bus-Target-LUN: Identification for a parallel SCSI device
CHAP	Challenge-Handshake Authentication Protocol: If CHAP is enabled, the target
	requires the initiator to negotiate CHAP authentication using the CHAP secrets
	(passwords). An initiator may reject this negotiation
DP	GbE port used for data movement and inband management
data port
firmware	Software stored in read-only memory (ROM) or programmable ROM (PROM);
	firmware is often responsible for the behavior of a system when it is first
	switched on
GbE	A protocol for transferring block-level IO over telnet networks; speed at which
Gigabit Ethernet	data is passed over Ethernet
IETF	Internet Engineering Task Force: The standards body responsible for Internet
	standards such as SNMP and telnet through a community of network designers,
	operators, vendors and researchers concerned with the evolution and smooth
	operation of the Internet
initiator device	A component which originates a command
iSCSI	Internet SCSI (Small Computer System Interface), a protocol to link data storage
	facilities over the Internet or an intranet developed by the Internet Engineering
	Task Force (IETF); carries SCSI commands over IP networks to facilitate data
	transfers over intranets and manage storage over long distances
LED	Light-emitting diode, a type of diode that emits light when current passes through
	it; visible LEDs are used as indicator lights on all sorts of electronic devices
LUN	Logical Unit Number: a SCSI identifier of a device
MPn	GbE port used for management but which may also be used as a data port
Management Port
Metadata	Information (file marks, directory name information) stored on the tape to assist
	data management; content of the metadata is the sole responsibility of the
	NDMP Data Management Application
NAS	Network Attached Storage: storage elements connected to a network to provide
	file access services to computer systems; an NAS Storage Element includes an
	engine to implement the file services and one or more devices to store data;
	NAS elements may be attached to any type of network; an NAS host system
	uses a file system device driver to access data and NAS systems interpret these
	commands to execute the necessary internal file and device I/O operations
NDMP	Network Data Management Protocol: A protocol for data backup and restore
	over telnet networks which uses file-based IO
SCSI	Small Computer Systems Interface: a processor-independent standard for
	system-level interface between a computer and intelligent devices including hard
	disks, floppy disks, CD-ROM, printers, scanners, etc.

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ATTO Technology Inc. iPBridge Installation and Operation Manual