Disparity

Distributed Fabrics

DLS

Domain ID

E_D_TOV

E_Port

EE_Credit

The relationship of ones and zeros in an encoded character. “Neutral disparity” means an equal number of each, “positive disparity” means a majority of ones, and “negative disparity” means a majority of zeros.

The combined user’s guides for the software products Extended Fabrics and Remote Switch. “Distributed Fabrics” is not a software product. See also Extended Fabrics, Remote Switch.

Dynamic Load Sharing; dynamic distribution of traffic over available paths. Allows for recomputing of routes when an Fx_Port or E_Port changes status.

Unique identifier for the switch in a fabric. Usually automatically assigned by the switch, but can also be assigned manually. Can be any value between 1 and 239.

Error Detect Time-out Value; the minimum amount of time a target waits for a sequence to complete before initiating recovery. Can also be defined as the maximum time allowed for a round-trip transmission before an error condition is declared. See also R_A_TOV, RR_TOV.

Expansion Port; a type of switch port that can be connected to an E_Port on another switch to create an ISL. See also ISL.

End-to-end Credit; the number of receive buffers allocated by a recipient port to an originating port. Used by Class 1 and 2 services to manage the exchange of frames across the fabric between source and destination. See also End-to-end Flow Control, BB_Credit.

EIA Rack A storage rack that meets the standards set by the Electronics Industry Association.

Enabled Zone Configuration

End-to-end Flow Control

Error

The currently enabled configuration of zones. Only one configuration can be enabled at a time. See also Defined Configuration, Zone Configuration.

Governs flow of class 1 and 2 frames between N_Ports. See also EE_Credit.

As applies to Fibre Channel, a missing or corrupted frame, time-out, loss of synchronization, or loss of signal (link errors). See also Loop Failure.

Exchange

The highest level Fibre Channel mechanism used for communication between

 

N_Ports. Composed of one or more related sequences, and can work in either one

 

or both directions.

Extended

Software product that runs on Fabric OS and allows creation of a Fibre Channel

Fabrics

fabric interconnected over distances of up to 100 kilometers. See also Distributed

 

Fabrics.

F_Port

Fabric Port; a port that is able to transmit under fabric protocol and interface over

 

links. Can be used to connect an N_Port to a switch. See also FL_Port, Fx_Port.

Fabric

Fabric Assist

A Fibre Channel network containing two or more switches in addition to hosts and devices. May also be referred to as a switched fabric. See also Topology, SAN, Cascade.

A feature that enables private and public hosts to access public targets anywhere on the fabric, provided they are in the same Fabric Assist zone. This feature is available only when both QuickLoop and Zoning are installed on the switch.

HP Surestore FC 1Gb/2Gb Switch 16B Installation and Reference Guide

Glossary-3

Page 49
Image 49
HP FC 1GB/2GB 16B manual Dls, Edtov

FC 1GB/2GB 16B specifications

The HP FC 1GB/2GB 16B is a Fibre Channel adapter that plays a vital role in high-performance storage networks, particularly in enterprise environments where data transfer speed and reliability are critical. Designed for scalability and efficiency, this adapter supports both 1GB and 2GB data rates, making it suitable for a variety of applications ranging from small businesses to large data centers.

One of the main features of the HP FC 1GB/2GB 16B is its ability to deliver robust performance with low latency, enabling quick access and retrieval of data. This is essential in environments that require real-time data processing and immediate availability. The adapter comes with dual ports which allow for multiple connections to the storage area network (SAN), enhancing redundancy and providing path failover capabilities to minimize downtime.

In terms of technology, the HP FC 1GB/2GB 16B utilizes advanced Fibre Channel protocols that ensure uninterrupted data flow and high bandwidth utilization. With support for SCSI commands over Fibre Channel, the adapter facilitates seamless integration between storage devices and servers, thus optimizing data exchanges. Additionally, the auto-sensing capability of the adapter allows it to automatically adjust its speed based on the requirements of the storage network, providing optimal performance while minimizing configuration hassles.

The characteristics of the HP FC 1GB/2GB 16B further strengthen its position as a reliable component for SANs. It features low power consumption design, which not only reduces operational costs but also contributes to a greener IT environment. The adapter is built to withstand the rigors of continuous operation, ensuring longevity and reliability. Its compact design also means it can fit into a variety of server chassis, making it flexible and easy to deploy.

Security is another critical aspect of the HP FC 1GB/2GB 16B that cannot be overlooked. The adapter includes features for port security and zoning, providing mechanisms to control data access and protect sensitive information. Its compatibility with various HP servers adds to its appeal, allowing organizations to leverage their existing infrastructure while upgrading their connectivity capabilities.

In conclusion, the HP FC 1GB/2GB 16B Fibre Channel adapter stands out due to its high performance, reliability, and scalability. It caters to diverse storage networking needs within enterprise environments, making it a worthwhile investment for organizations looking to enhance their data management and connectivity solutions.