Drive Enclosure Troubleshooting

Under Normal conditions, the LEDs should all be illuminated constant GREEN

If a problem is detected, the color of the relevant LED will change to AMBER.

Table 8–3

DEM LEDs

 

 

 

 

 

 

 

 

Location

 

Color

LED Identifier

Behavior

 

 

 

 

 

FRONT Enclosure

 

Amber

Enclosure fault

ON with a DEM fault.

 

 

 

 

 

FRONT Enclosure

 

Amber

DEM fault

ON with a DEM fault.

 

 

 

 

 

Internal (DEM)

 

Amber

DEM fault

ON with a DEM fault.

Enclosure

 

 

 

 

 

Internal (DEM)

 

Green

DC OK

ON when the DC voltage regulation is

Enclosure

 

 

 

 

within limits.

 

 

 

 

 

 

 

 

 

 

OFF with a DC output failure.

 

 

 

 

 

Internal (DEM)

 

Green

Expander MIPS

ON when the expander internal processor

Enclosure

 

 

 

ready

is booted and operating correctly.

 

 

 

 

 

 

 

 

 

OFF when the expander internal

 

 

 

 

 

processor is NOT booted or ready.

 

 

 

 

 

Internal (DEM)

 

BLUE

DEM identify

ON indicates that this DEM is being sent

Enclosure

 

 

 

 

an identify command by the SEP.

 

 

 

 

 

 

 

 

 

 

 

8.3.4I/O Module

The I/O fault LEDs are explained in Table 8–4.

Under Normal conditions, the LEDs should all be illuminated constant GREEN

If a problem is detected, the color of the relevant LED will change to AMBER.

Table 8–4

I/O LEDs

 

 

 

 

 

 

 

Location

Color

LED Identifier

Behavior

 

 

 

 

FRONT Enclosure

Amber

Enclosure fault

ON with an I/O fault.

 

 

 

 

REAR Enclosure

Green

I/O OK

OFF when an I/O module detectable fault

 

 

 

 

is present.

 

 

 

 

INDEPENDENT of SAS link fault condition

 

 

 

 

and stays lit during a SAS link fault.

 

 

 

 

REAR Enclosure

Amber

I/O fault

ON when a detectable fault is present in

 

 

 

 

the I/O module.

 

 

 

 

INDEPENDENT of SAS link fault condition

 

 

 

 

and stays lit during a SAS link fault.

 

 

 

 

 

007-5510-002

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APC 15000 RAID manual 4 I/O Module, Blue