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Installing the A5150A Adapter
SCSI Bus Termination
Chapter 2 35
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.