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3 setting the loop id, Setting the loop id – Sun Microsystems Sun StorEdge A3500FC User Manual

Page 31

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Chapter 2

FC-AL Host Connections

2-13

2.3

Setting the Loop ID

This section explains how to set the loop ID of a controller that is connected to a
hub.

Tools and equipment needed:

Needlenose pliers

Jumpers (supplied with the StorEdge A3500/A3500FC unit)

Antistatic wrist strap

Every device attached to a SCSI or FC-AL bus must have a unique controller module
ID number in order to communicate. The factory default ID settings for controller A
and B are ID 5 and ID 4, respectively.

Note –

Do not configure more than four controller modules on the same loop.

1. Locate the 16 pins on the rear of the FC-AL controller module (

FIGURE 2-8

).

The eight pins on the right determine the host ID for controller 1(A); the pins on the
left determine the ID for controller 2(B).

2. Wearing the antistatic wrist strap, install jumpers on the pins as shown in

FIGURE 2-8

.

If necessary, use the needlenose pliers to remove the jumpers.