ATTO Technology 1550D/E Glossary, Intelligent Bridging Architecture, the engine, Term Definition

Introduction: iSCSI provides storage options

The iSCSI protocol allows storage devices such as hard drives, tape drives and libraries and CD jukeboxes to attach easily to Internet Protocol networks such as Gigabit Ethernet. The iPBridge 1500 and the ATTO iPBridge 1550 support the high throughput needs of streaming data transfers, optimizing performance and management using ATTO Technology intelligent Bridging Architecture™.

The iSCSI protocol increases the capabilities and performance of storage data transmission by transmitting data over local area networks (LANs), wide area networks (WANs), or the Internet, providing location-independent data storage and retrieval to enhance current and future Storage Area Networks (SANs).

Gigabit Ethernet (GbE) is a transmission technology based on the Ethernet format and protocol used in local area networks (LANs). It

provides a data rate of 1 billion bits per second (one gigabit) as defined in the IEEE 802.3 standard.

intelligent Bridging Architecture, the engine

within ATTO FibreBridge™ and iPBridge products, uses ATTO Data Routing Fabric topology and ATTO Virtual Device Manager to optimize performance. For more information see www.attotech.com/iBA.html.

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 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

ATTO Technology Inc. iPBridge Installation and Operation Manual