Installing the A5150A Adapter

SCSI Bus Termination

 

The HBA is not able to distinguish inline-terminated cables from regular

 

SCSI cables. If an inline-terminated cable is connected to an HBA that

 

has auto termination enabled, termination will be provided by both the

 

cable and the HBA. This would result in improper (double) termination

 

of the SCSI bus. To prevent this, disable auto termination any time

 

inline-terminated cables are connected to the HBA.

 

Scenario Seven

 

V-Class systems use cables with inline termination. So, the jumpers of

 

any HBAs installed in a V-Class system are set to disable auto

 

termination when they are shipped from Hewlett-Packard.

 

Scenario Eight

 

High Availability configurations use inline-terminated cables exclusively,

 

so you must disable auto termination on any HBAs used in an HA

 

environment.

 

How to Turn Off Auto Termination

 

You control the auto termination feature through commands at the BCH

 

prompt. See the steps below.

 

 

NOTE

The following steps and examples are specific to N-Class systems.

 

Menus, commands, and responses will be slightly different on other

 

systems.

 

To change the auto termination state of an A5150A HBA, follow these

 

 

steps:

Chapter 2

33