HP StorageWorks 20 - Modular Smart Array Guide de l'utilisateur télécharger pdf (Page 45)

Chapter 3 Connecting Hosts 45

Connecting Switch Attach Configurations

This section explains how to connect the controller enclosure to data hosts through

one or more external FC switches.

The controller enclosure has four host connections, two per controller. Connect FC

cables from controller hosts ports to switch ports, and from switch ports to data

hosts, as shown in the following figures.

To maintain redundancy, connect each data host through the switch or switches to

both controller A and controller B. Make sure that link speed and topology settings

on switches match those on the controller host ports to which they are connected. A

speed mismatch prevents the host from accessing the storage system.

Caution – Fiber optic cables are fragile. Do not bend, twist, fold, pinch, or step on

the fiber optic cables. Doing so can degrade performance or cause data loss.

Note – For clarity, the schematic illustrations of the controllers shown in this

section show only relevant details such as host ports. For detailed illustrations

showing all components, see “Hardware Components and LEDs” on page 13.

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HP StorageWorks 20 - Modular Smart Array Guide de l'utilisateur Page 45