Sun Microsystems A3500FC manual Setting the Loop ID

2.3Setting 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.

Chapter 2 FC-AL Host Connections 2-13