ADIC 4000 - Manual (Page 63)

Use Cleaning Tape LED 6-5
Use Cleaning Tape LED
If an excessive number of read-after-write errors are detected
during normal operation of the 4000/7000DLT Series, the
Use
Cleaning Tape LED will be turned on by the drive.
Usually, the Use Cleaning Tape LED is turned on by the
drive because of a dirty head, so the head should be cleaned
and the operation tried again.
If the Use Cleaning Tape LED is again turned on and this
seems to be a cartridge rather than a drive problem, make sure
that all the data on that cartridge is backed up to a new
cartridge by doing a complete backup from the source drive,
if necessary. Then discard the old cartridge. If you are unsure
of the problem source, call customer service.
The Use Cleaning Tape LED is normally turned off by
executing a cleaning cycle or by cycling power to the
4000/7000DLT Series.
All right or all left
indicator panel LEDs on
the drive front panel
blink A drive fault has
occurred Try to unload the tape and
reinitialize the drive by
pressing the Unload button
or turn the 4000/7000DLT
Series unit power off and
then on again.
The LEDs will stop
blinking and the drive will
try to reinitialize. The LEDs
will turn on steady again
and go off if the test
succeeds.
You are finding fatal or
nonfatal errors for which
you cannot determine the
cause The bus termination or
SCSI signal cable
connections might be
incorrect
The AC power source
grounding might be
incorrect
Make sure the SCSI bus is
terminated.
Use an AC outlet for the
4000/7000 Series unit on
the same AC circuit as the
AC line powering the host
system.
Table 6-1 Problem Chart