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Operation and Maintenance
Power-on Self-Test
When the system power is
ON
, the DLT drive performs a Power-on Self-Test (POST). The sequence of events is as
follows:
1. The LEDs on the right front panel of the DLT drive will turn on sequentially from top to bottom. All LEDs
will remain
ON
for a few seconds.
2. The LEDs on the left front panel will turn
ON
at the same time for about three seconds and then turn
OFF
.
3. The
Operate Handle
,
Write Protected
, and
Use Cleaning Tape
LEDs will turn
OFF
. The
Tape in
Use
LED will blink while the tape drive initializes.
If the external SCSI bus terminator has a Term Power LED it should also be illuminated.
Drive Status
LED Indicators
After initialization, the drive will be in one of the four states listed in the following table:
Drive State LED Indicator Displays and Drive Actions
1. No cartridge is present.
A. The
Tape in Use
LED turns
OFF
.
B. The
Operate Handle
LED turns
ON
.
C. The handle is unlatched.
D. The drive beeps momentarily.
2. A cartridge is present and the
handle is down.
The drive loads the cartridge.
When the
Tape in Use
LED stops blinking and stays
ON
, the
tape’s actual density lights. For example, if the actual tape density
is 2.6, then the LED turns
ON
next to the 2.6 label.
When the
Density Override
LED blinks, select a density setting.
The drive is ready for use.
3. A cartridge is present, but the
handle is up (
not
recommended
).
The
Tape in Use
LED turns
OFF
. The
Operate Handle
LED
flashes.
When the handle is lowered, the cartridge loads.
4. The drive detects an error
condition.
All right or left side LEDs blink repeatedly.
Try to unload the tape (if present) and reinitialize the drive by
pressing the
Unload
button or switch the power
OFF
and then
ON
. The right or left side LEDs stop blinking and the drive tries
to reinitialize. The LEDs turn
ON
with a constant illumination,
and then turn
OFF
if the test succeeds.