4.Operation

4.3.4.Diagnostic and Normal Status Displays

This chapter describes LED displays while the SDX-800V is starting up. When power is turned on, the SDX-800V will go through its diagnostics to reach normal status. When a failure is detected during diagnostics, the LEDs show that the SDX-800V is out of order and needs to be repaired.

Note: When power is turned on, the all LED on before the front panel test.

4.3.4.1.Diagnostic Status Display

The SDX-800V starts with its Diagnostic function. This is made up of the Front Panel Test and the Kernel Test.

Front Panel Test

 

 

 

 

LED display sequence:

 

 

 

 

 

TAPE

CLEANING

REPLACE

 

 

MOTION

REQUEST

TAPE

 

0.3sec

on

on

on

 

0.3sec

-

-

-

 

0.3sec

on

on

on

 

0.3sec

-

-

-

Front Panel Test

0.3sec

on

-

-

Kernel Test

0.3sec

-

on

-

 

0.3sec

-

-

on

 

0.3sec

on

-

-

 

0.3sec

-

on

-

 

0.3sec

-

-

on

 

0.3sec

on

-

-

 

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 SDX-800V checks its internal units. When a Diagnostic error occurs, the SDX-800V must be powered off. The SDX-800V will not work and should be checked or repaired immediately.

The purpose of the diagnostic firmware to test the SDX-800V electronics for functionality. If the diagnostic request comes from the host through SCSI, then the results are reported through SCSI.

If the electronics are not functioning, the diagnostic firmware tries to isolate the non-functional area to a specific Failed Unit. Given a failure, the firmware decides on a hierarchical basis which Unit to designate as the Most Suspect Failed Unit (MSFU). The confidence in this decision is intended to be 95%. For the details of Diagnostics, see clause 7.2.6

4.3.4.2.Normal Status Display

After the Diagnostic Display, when no failures are detected, the SDX-800V is in the Normal Status. The LEDs show various Normal Status (No Error) indications as shown in the table below:

4-4

SONY AIT-3Ex drive SDX-800V series Ver.1.1

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Sony SDX-800V/R manual Diagnostic and Normal Status Displays, Diagnostic Status Display, Front Panel Test, Kernel Test
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