HP StorageWorks 4000 Compaq StorageWorks Fibre Channel Troubleshooting Guide - Page 17

Storage Hub 12, Features, Expandability and Performance, Flexibility, Intelligent Port Control

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Introduction 1-9 Storage Hub 12 The Storage Hub 12 continuously monitors and automatically configures devices added or removed from the FC-AL. Adding valid FC-AL nodes is a plug-and-play operation. FC-AL nodes that are missing or inoperative are detected, and the data is automatically routed to the next operational port and node on the FC-AL. The Storage Hub 12 is transparent to the data passing through it. It does not consume any FC-AL addresses. Because of the intelligent signal detection tests, only valid Fibre Channel devices will be connected to the FC-AL. When devices are added to the FC-AL, the Storage Hub 12 will automatically test the new device and accept it into the FC-AL. Faulty devices will be dropped by the Storage Hub 12 and dynamic node addressing will maintain the overall FC-AL integrity. Figure 1-8. Compaq Fibre Channel Storage Hub 12 Features I Expandability and Performance-supports 12 GigaBit Interface Converter modules I Flexibility-adheres to the ANSI FC-AL standard I Intelligent Port Control-provides multiple data checks without affecting performance I Ease of Use-provides port-bypass circuitry flexibility and simplifies central wiring management

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Introduction
1-9
Storage Hub 12
The Storage Hub 12 continuously monitors and automatically configures devices added or
removed from the FC-AL. Adding valid FC-AL nodes is a plug-and-play operation. FC-AL
nodes that are missing or inoperative are detected, and the data is automatically routed to the
next operational port and node on the FC-AL.
The Storage Hub 12 is transparent to the data passing through it. It does not consume any
FC-AL addresses. Because of the intelligent signal detection tests, only valid Fibre Channel
devices will be connected to the FC-AL. When devices are added to the FC-AL, the Storage
Hub 12 will automatically test the new device and accept it into the FC-AL. Faulty devices will
be dropped by the Storage Hub 12 and dynamic node addressing will maintain the overall
FC-AL integrity.
Figure 1-8. Compaq Fibre Channel Storage Hub 12
Features
■
Expandability and Performance—
supports 12 GigaBit Interface Converter modules
■
Flexibility—
adheres to the ANSI FC-AL standard
■
Intelligent Port Control
—provides multiple data checks without affecting performance
■
Ease of Use
—provides port-bypass circuitry flexibility and simplifies central wiring
management