ATTO Technology 2700C Benutzerhandbuch

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Appendix
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