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Troubleshooting

The following sections describe problems, with possible solutions, which can occur with your Gateway E-842R Storage Area Network.

System faults

Symptom

Cause

Action

 

 

 

1. The CONTROLLER FAULT

The ESI processor has

Replace the faulty module as appropriate.

LED lights orange on the

detected an internal

 

module.

fault on one of the

 

2. The audible alarm sounds.

following modules:

 

 

■

Power supply

 

 

■

Cooling

 

 

■

RAID

 

 

 

 

 

Also see “Thermal warnings” on page 18.

Power supply faults

Symptoms

Causes

Actions

 

 

 

 

 

 

■

Ops panel SYSTEM FAULT LED

■

Any power fault.

■

Make sure that the AC power connections to power

 

is orange.

■

A fan failure.

 

supply module are live.

■

An orange LED on one or

■

A thermal condition which could

■

Disconnect the power supply module from AC power

 

more power supply modules.

 

cause power supply module

 

and remove the module from the system, then

■

Audible alarm sounding.

 

overheating.

 

re-install. If the problem persists, replace the power

 

 

■

Fault on one of the following

 

supply module.

 

 

 

modules:

■

Reduce the ambient temperature.

 

 

■

Power supply

■

Replace the faulty module, as appropriate:

 

 

■

Cooling

■

Power supply

 

 

■

RAID

■

Cooling

 

 

■

Removal of 1 power supply

■

RAID

 

 

 

module.

 

 

 

 

 

 

 

 

Thermal control

The Gateway E-842R storage enclosure uses extensive thermal monitoring and takes a number of actions to make sure that component temperatures are kept low and that acoustic noise is minimized. Airflow is from front to rear of the enclosure.

SymptomCause

Action

If the ambient air is cool (below 77°F (25°C)) and the fans are observed to increase in speed, some airflow restriction may be causing the internal temperature rise. Note: This is not a fault condition.

The first stage in the thermal control process is for the fans to automatically increase in speed when a thermal threshold is reached. This may be caused by higher ambient temperatures in the local environment and may be perfectly normal.

Note: This threshold changes according to the number of drives and power supplies installed.

■Check the installation for any airflow restrictions at either the front or rear of the enclosure. A minimum gap of 1 inch (25 mm) at the front and 2 inches (50 mm) at the rear is recommended.

■Check for restrictions caused by dust build-up and clean as appropriate.

■Check for excessive re-circulation of heated air from the rear to the front. Installing in a fully enclosed rack installation is not recommended.

■Make sure that all blank modules are installed.

■Reduce the ambient temperature.

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