ATTO Technology 2700C operation manual Appendix B Glossary, Term Definition

Appendix B Glossary

More information is available through the Storage Networking Industry Association

(www.snia.org/education/dictionary) and the IETF (www.ietf.org).

Term	Definition
ACL	Access Control List--refers to a target node.
broadcast domain	PCs and servers send (broadcast) information out through an Ethernet domain.
	Switches and routers may connect domains, but may not share information across
	domains.
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.
DHCP	As defined in RFC 2131, a protocol which assigns IP addresses to devices on a
	local area network. The iPBridge is set up by default to request an IP address from
	the DHCP server.
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
IETF	Internet Engineering Task Force: The standards body responsible for Internet
	standards such as SNMP and TCP/IP 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
LUN	Logical Unit Number: an identifier of a device
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
SCSI	Small Computer Systems Interface: a processor-independent standard for system-
	level interface between a computer and intelligent devices including hard disks,
	tape, floppy disks, CD-ROM, printers, scanners, etc.
SNMP	Simple Network Management Protocol: a standard for monitoring and managing
	systems and devices in a network; data is defined by a MIB; functions supported
	include the request and retrieval of data
SNTP	Simple Network Time Protocol: uses a server to set the time and date over the
	Ethernet port.
Target Node	iSCSI synonym for zone
zone	a group of mapped target devices which has a name, its own access control list,
	and its own CHAP secrets

iv Appendix