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Identifying hardware faults
The light-emitting diodes (LEDs) on Hitachi Unified Storage system
components show the condition of the components and whether you can
safely remove them.
You might also receive alerts to hardware faults in the following ways:
•
By email if you configured email notifications in Storage Navigator
Modular 2.
•
Via the Simple Network Management Protocol (SNMP) if your SNMP
application is configured to provide such alerts.
The following sections show the locations of the LEDs and components on
the Hitachi Unified Storage systems, and provide tables that describe the
meanings of the LEDs and components.
Using Storage Navigator Modular 2 to identify failures
You can use Storage Navigator Modular 2 to identify the following Hitachi
Unified Storage system component failures:
•
When notified of an error by email (if previously configured in Storage
Navigator Modular 2) or via the Simple Management Network Protocol
(SNMP).
•
When a failure is indicated by the LED (WARNING or ALARM LEDs go
ON or READY LED does not go ON).
•
When performance deterioration or other anomaly is recognized by the
host system connected to the Hitachi Unified Storage system.
•
When a volume cannot be recognized or becomes unstable.
In these cases, use
Figure 1-1 on page 1-4
Verifying component failures
Hitachi Unified Storage Hardware Service Guide
to recover the storage system.
1–3
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