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4.Operation
4.3.4. Diagnostic and Normal Status Displays
This clause describes LED displays while the drive is starting up. When the power is turned on, the drive will go
through its diagnostics to reach normal status. When a failure is detected during diagnostics, the LEDs show that
the drive is out of order and needs to be repaired.
4.3.4.1. Diagnostic Status Display
The drive starts with its Diagnostic function. This is made up of the Front Panel Test and the Kernel Test.
Front Panel Test
LED display sequence:
0.3sec
0.3sec
0.3sec
0.3sec
0.3sec
0.3sec
0.3sec
0.3sec
0.3sec
0.3sec
0.3sec
This function is for checking TAPE MOTION, CLEANING REQUEST and REPLACE TAPE LEDs and the related
circuits. No errors can be generated as this test is only for operator verification of indicator operation.
Kernel Test
After the Front Panel Test, the drive checks its internal units. When a Diagnostic error occurs, the drive must be
powered off. The drive will not work and should be checked or repaired immediately.
The purpose of the diagnostic is to test the drive electronics for functionality. If the diagnostic request comes from
the host through SCSI, then the results are reported through SCSI.
4.3.4.2. Normal Status Display
After the Diagnostic Display, when no failures are detected, the drive is in the Normal Status. The LEDs show
various Normal Status (No Error) indications as shown in the table below:
4-4
TAPE
CLEANING
MOTION
REQUEST
on
on
-
-
on
on
-
-
on
-
-
on
-
-
on
-
-
on
-
-
on
-
REPLACE
TAPE
on
-
on
-
Front Panel Test
-
Kernel Test
-
on
-
-
on
-
SONY AIT-5 drive SDX-1100V series Ver.1.0
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