Technical data

Troubleshooting 15
2.3.1 Running the System Exerciser
The system exerciser performs a more thorough test of the RX23 diskette
and the SCSI adapter module. It performs a read/write operation during
the second pass of the exerciser when the special keyed diskette is loaded
in the RX23 drive before starting the system exerciser. To run the system
exerciser:
1. Install a loopback on the communication port.
2. Load the special keyed diskette in the RX23 drive. If the diskette
does not contain the special key, go to Section 3.2 and perform the
procedure to write the special key on the diskette.
3. Enter TEST 80000106 and 7.
4. Read the results on the screen during the test.
5. Press the halt button to stop the exerciser.
System Exerciser Results
A code of 5300.0001 listed under the SCSI-A bus indicates no errors for
the RX23 and the read/write operation is successful.
A code of 5100.0001 listed under the SCSI-A bus indicates no errors.
However, no write operation took place either because the exerciser is still
executing the first pass, or the special key is not found on the diskette, or
no diskette is loaded.
Example 2–3 shows the system exerciser display for the SCSI-A bus.
There is one line for the status of the SCSI-A controller on the MSC
module and one line for each of the drives installed on the SCSI-A bus.
The status of the SCSI controller is next to the SCSI-A mnemonic (first
line) and the status of each drive is listed under the controller’s code
(separate line for each drive).
7 80A0 SCSI−A 6000.0001
2200.0001
3200.0001
5300.0001
3 0000 0 00:05:26
RX23/SCSI adapter assembly
RZ23 disk drive
RZ23 disk drive
Example 2–3 System Exerciser Results for the SCSI-A Bus