1 HV Installation and Operations Guide

Chapter 2 SCSI Addressing 37

Chapter 2

SCSI Addressing

The bridge appears on each SCSI bus as a single initiator. The default initiator

ID is 7, but it can be set to any valid SCSI address. No other device on the SCSI

bus may use this address. Note that the FC host itself is not connected to the

bus. Their SCSI operations are passed down to the individual SCSI Target

devices through the use of the bridge’s SCSI Initiator ID.

The bridge provides the capability to reset SCSI buses during the bridge boot

cycle. The feature is enabled in the default configuration, but should be

disabled for configurations using multiple SCSI initiators or devices that have

long reset cycles or are adversely affected by bus resets.

The bridge negotiates for the maximum values for transfer rates and bandwith

on a SCSI bus. If an attached SCSI device does not allow the full rates, the

bridge will use the best rates it can negotiate for that device. Negotiation is on

a device specific basis, so the bridge can support a mix of SCSI device types

on the same SCSI bus.