CHAPTER 4: Troubleshooting

Audible alarm mute

When the audible alarm sounds, you can mute it by pressing the alarm mute button, located on the enclosure’s front panel. Automatic muting takes place after two minutes if you do not press the alarm mute button.

When the alarm is muted, it continues to sound with short intermittent beeps to indicate that a problem still exists. The alarm turns off when all problems are cleared. (See “Thermal warnings” on page 18).

LED test mode

You can also use the alarm mute button to activate the self- test feature for the LEDs on the Ops panel. The test is activated when you press the mute button while no faults are present. While the test is running, all LEDs flash.

Drive carrier module faults

Use the green LED and orange LED mounted on the front of each drive carrier module to monitor disk drive status. The LEDs indicate the following:

State

Green

Orange

 

 

 

No drive installed

Off

Off

 

 

 

Drive power ON

On

Off

 

 

 

Drive activity

On/Blink off

Off

 

 

 

Drive impacted

On

Blink

 

 

 

Drive fault

On

On

 

 

 

Power control circuit failure

Off

On

Important

The LED may be off for a length of time during power up.

Green (activity) LED

Orange (fault) LED

Auto start failure

Unless otherwise selected at installation, all drives in the enclosure should automatically start after you turn on the enclosure. If this does not occur, there is a power problem (an alarm and power fault indication would normally be active).

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