System Hxerciser - Digital Equipment VAXstation 3100 Maintenance Manual

Troubleshooting 39
more of the drives on the bus are faulty. To determine which device is faulty,
examine the status codes of the drives (second line). The address IDs are
numbered 0 through 7 from left to right (for example, the RZSS expansion
box is located at SCSI address ID 1 and the RRD40 is located at SCSI address
ID 4). Table 2-11 lists the normal status codes for each SCSI device available
in the system. Any code other than those previously listed indicates an error
in the device at that SCSI address ID.
If a drive is configured for an address ID that indicates FFFPFFOS, check
the drive's cabling and power and retest. If the code is still FFFFFFOS after
retesting, replace the drive. Appendix E contains a complete list of self-test
error codes.
Table 2-11 SCSI Devices Self-Test Status Codes
Status Code
FFFFFF05
FFFFFF03
FFFFFFFF
00000001
01000001
05000001
SCSI Device
Device is off-line or not installed at this address
SCSI bus controller
Device not tested - possible SCSI bus controller error
RZ22, RZ23, or RZ55 disk drive
TZ30 or TK50 tape drive
RRD40 compact disc drive
2.15.2 System Exerciser
To start the system exerciser for customer mode, enter TEST 0. To start
the system exerciser for Field Service mode, enter TEST 101, TEST 102,
or TEST
80000106,
then 6 or 7 at the prompt. The customer mode system
exerciser does not perform reads or writes to the drives. Field Service mode
system exerciser performs a complete read/write test on the tape drive and the
disk drives (on reserved diagnostics blocks), performs reads on the compact
disk drive
(if
test disk is loaded), and also performs data transfer tests on
all drives. For Field Service mode to run properly, you must install the
loopback on the communication port, load the special-keyed (T 73) tape
cartridge into the tape drive, and load the RRD40 test disc before starting
the system exerciser.
The first pass of the system exerciser on a SCSI bus tests the SCSI controller
and, if the SCSI controller is operating properly, checks the SCSI bus for
the presence of any drives. It does not perform any diagnostics or any data
transfer tests on the drives during the first test pass.
H
the SCSI controller
tests bad, an error code is listed in the display and the SCSI bus is not checked
for the presence of any drives.