Installing the A5150A Adapter

SCSI Bus Termination

b.In the Service Menu, type scsi (to display the current status of SCSI devices). The output could look like this:

Path (dec)

Initiator ID

SCSI Rate

Auto Term

-------------

------------

------------

------------

.

 

 

 

.

 

 

 

0/2/0/0

7

Fast

Off

In this example, the HBA’s auto termination state is Off (shown in bold, for emphasis, in the listing above).

c.Still in the Service Menu, type the following command: scsi term path state

where path is the HBA’s path and state is what you want to set the HBA’s auto termination state to. So, using the information for the HBA in the two examples above, you would type

scsi term 0/2/0/0 on

to change the HBA’s auto termination state to on.

If you want to be sure the auto termination state changed, you can repeat step b to display the SCSI device status.

Setting SCSI IDs

You must set each SCSI device and the host adapter to a separate SCSI ID (0 through 15 for a 16-bit SCSI). SCSI ID 7 is the preset host adapter setting, giving it the highest priority on the SCSI bus. If you plan to boot your computer from a hard disk drive on the SCSI bus, that drive should be set to SCSI ID 6 or the lowest SCSI ID on the bus.

To change this default to a different SCSI address for HA applications, you must use the Boot Console Handler or BCH for N-4000 systems. There are no SCSI address switches or jumpers. You must invoke the appropriate commands in the SCSI section of the BCH and change the address electronically to whatever is required for the HA configuration being used. Refer to “Checking SCSI Bus Compatibility” on page 42 for more information.

Chapter 2

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