Infortrend A12U/A08U-G2421 User Manual download pdf (Page 42)

EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual

Configuration Client functionality are given in the RAIDWatch User’s

Manual.

• LEDs: Device-status-indicating LEDs are placed on all of the subsystems’

active components. These LEDs inform you of the integrity of a given

component or a given link. You should become familiar with the different

LEDs on the subsystem and be aware of their functions. (See Section 3.2)

• Audible Alarm: An audible alarm is present on the subsystem controller

board and will be triggered if any of a number of threatening events

occurred. These events usually jeopardize the functional and operational

integrity of the controller board and must be heeded at all times. Events

such as a breaching of the temperature threshold will trigger the alarm and

if an onsite subsystem manager is present, the manager should, using either

the LCD panel or the PC hyper-terminal, determine the cause of the alarm

and take the appropriate corrective measures. (See Section 3.3)

• Inter-Integrated Circuit (I

C): The I

C bus monitors the operational

integrity of the cooling modules, sensors for RAID controller

board/backplane temperature and voltage readings.

Subsystem monitoring is a necessary part of subsystem management. If failure

events or other disruptive events are detected and reported, the subsystem managers

must take the appropriate action to rectify the problem. Failure to act in a properly

specified manner to a system event (like overheating) can cause severe and

permanent damage to the subsystem.

3-2

Subsystem Monitoring Overview

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Infortrend A12U/A08U-G2421 User Manual Page 42