Identify 5U Enclosure Fault Conditions; Table 13 2U Enclosure Non-Fault Conditions - Seagate Exos X 4006 Series Hardware Installation And Maintenance Manual

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4. Use the command line interface (CLI). If you discover a problem, review both the SMC and the CLI for any recommended
actions.
5. Visually inspect front panel area fault LEDs, then locate component fault LEDs, based on LED-identified general location. If
a hardware issue prevents access to the SMC or CLI, it is the only option available.

Table 13 2U enclosure non-fault conditions

Symptom
Operator's panel area LEDs, no fault conditions
System power, system ID, and host connectivity LEDs
with no module or logical fault LEDs
Drive module LEDs, no fault conditions
Amber flashing LED: 1 second on, 1 second off
Controller or expansion module LEDs, no fault conditions
LEDs other than:
-Controller or expansion module amber fault LEDs
-SAS port amber fault LEDs
PCM LEDs, no fault conditions
PCM OK amber LED flashing

Identify 5U enclosure fault conditions

Fault conditions do not necessarily cause the storage enclosure to cease functioning. Fault conditions do require a system
administrator to take an appropriate action to clear the fault condition.
The controller modules allow you to choose from multiple fault isolation methods. This section provides the basic
methodology used to locate faults within a storage system, then identify the affected FRUs.
When performing fault isolation and troubleshooting steps, select the option or options that best suit your site environment.
Use of any one of the following options is not mutually exclusive to the use of another option. The order for the options is
based on frequency of use.
To identify 5U enclosure fault conditions:
1. Monitor event and alert notifications through your host system interface.
a. Event notifications: The system event logs record all system events and identifies the event type and its severity.
b. Alert notifications: An alert reports a system fault, registers the type and severity, then tracks its resolution.
2. Alerts fall into three categories, listed in order of severity. Resolve them, moving from most severe to least severe.
a. Critical alerts: Such alerts require immediate resolution, since they may cause a controller module to shut down or
place data at risk.
b. Warnings: Such alerts require immediate attention so you can evaluate the problem and correct it.
c. Informational alerts: Such alerts neither require immediate attention nor immediate action.
3. Use the Storage Management Console (SMC). You can use the SMC to monitor the health icons or values for the system
and its components, to make sure that everything is functioning properly, or to locate a problem component.
4. Use the command line interface (CLI). If you discover a problem, review both the SMC and the CLI for any recommended
actions.
5. Visually inspect front panel fault LEDs, then locate component fault LEDs, based on LED-identified general location. If a
hardware issue prevents access to the SMC or CLI, it is the only option available.
85            Chapter 9   Hardware installation and configuration issues
Cause
System functioning properly
Drive unit identification (UID) bit is set
System likely functioning properly
PCM  is in standby mode
Recommended Action
No action required
No action required
Often, no action required. Refer to
"Interpret controller module LEDs" on
page 
59.
No action required

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