Connecting External SCSI Devices
Testing
the SCSI
Connection
Table 1–3 lists the steps that you must follow to test the SCSI
connection.
Table 1–3 Testing the SCSI Connection Using the SHOW
DEVICE Display
Step
Action
Result
1
Enter the SHOW
DEVICE command
(
!
) to display the SCSI
configuration.
The system responds
with a display similar to
Example 1–1.
2
Examine the BOOTDEV
column (
"
) to make sure
that all the devices are
listed.
If a device is not listed, see
Chapter 3 for information on
troubleshooting.
3
Examine the ADDR
column (
#
) to make sure
that the SCSI ID in each
SCSI address is unique.
If the SCSI ID is not unique,
you must reset the SCSI
ID on the new device to an
unused SCSI ID. See the
device documentation for
information on setting the
SCSI IDs.
Updated SHOW
DEVICE Display
Example 1–1 shows a sample of an updated SHOW DEVICE
display.
Example 1–1 Updated SHOW DEVICE Display
>>> SHOW DEVICE
!
"
#
BOOTDEV
ADDR
DEVTYPE
RM/FX
DEVNAM
REV
NUMBYTES
-------
----
-------
-----
------
---
--------
DKA0
A/0/0
DISK
FX
RZ25
426.25MB
DKA100
A/1/0
DISK
FX
RZ25
426.25MB
MKA200
A/2/0
TAPE
RM
TZK10
0.00KB
DKA400
A/4/0
RODISK
RM
RRD42
......
HOST
A/7/0
PROC
AHA1742/A
A
1–8 Installing the SCSI Adapter