User's Manual

Installing and Configuring the DLT4000 Tabletop Drive
2-12 DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem
Table 2-4 DLT4000 Troubleshooting Chart (cont’d)
If …… Then …… You should ……
Your system does
not recognize the
DLT4000 tabletop
drive
1. The SCSI bus
might be too long.
2. Too many devices
might be on the bus.
1. Limit the bus length to the ANSI
SCSI standard of 6 meters (19 feet)
for single ended (SE) or 25 meters
(82 feet) for differential.
2. Limit the number of devices on the
bus including the system) to eight.
Check your system configuration
rules.
The DLT4000
tabletop drive does
not power up
The DLT4000
tabletop drive has no
power
Check the DLT4000 power cord
connections with the DLT4000 power
switch off.
All right- or all
left-side indicators
on the DLT4000
front panel blink
A drive fault has
occurred
Try to unload the tape and reinitialize
the drive by pressing the Unload
button or turn drive power off and
then on again. The right- or left-side
indicators stop blinking and the drive
tries to reinitialize. The indicators
turn on steady again and go off if the
test succeeds.
You find fatal or
nonfatal errors for
which you cannot
determine he cause
The bus termination
or SCSI signal cable
connections might be
incorrect
Ensure the SCSI bus is terminated.
The ac power source
grounding might be
incorrect
Use an ac outlet for the DLT4000
tabletop drive on the same ac line
powering the system.
After taking the action listed in Table 2-4, power on the DLT4000 tabletop drive to
rerun POST. If all right- or left-side indicators blink again, you most likely have a
hardware failure.