Troubleshooting; Fault Isolation Methodology; Gather Fault Information; Determine Where The Fault Is Occurring - HP AA988A - Modular Smart Array Storage Controller SCSI User Manual

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CH A P T E R

Troubleshooting

Fault Isolation Methodology

The MSA2000 Family storage system provides many ways to isolate faults within
the system. This section presents the basic methodology used to locate faults and the
associated FRUs.
The basic fault isolation steps are:
Gather fault information, including by using system LEDs
■
Determine where in the system the fault is occurring
■
Review event logs
■
If required, isolate the fault to a data path component
■

Gather Fault Information

When a fault occurs, it is important to gather as much information as possible.
Doing so will help you determine the correct action needed to remedy the fault.
Begin by reviewing the reported fault. Is the fault related to an internal data path or
an external data path? Is the fault related to a hardware component such as a drive
module, controller module, or power-and-cooling module? By isolating the fault to
one of the components within the storage system, you will be able to determine the
necessary action more rapidly.

Determine Where the Fault Is Occurring

Once you have an understanding of the reported fault, review the enclosure LEDs.
The enclosure LEDs are designed to alert users of any system faults and might be
what alerted the user to a fault in the first place.
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