Sun Storage 7410 Unified Storage System
 
Oracle ZFS Storage ZS4-4
 
Sun ZFS Storage 7320
 
Sun Storage 7210 Unified Storage System
 
Sun Storage 7310 Unified Storage System
 
Sun ZFS Storage 7120
 
Sun ZFS Storage 7420
 
Sun Storage 7110 Unified Storage System
 

PLA-Support>Sun Systems>DISK>ZFS Storage>SN-DK: 7xxx NAS
 
_Old GCS Categories>Sun Microsystems>Storage - Disk>Unified Storage
 

In this Document

Purpose

Troubleshooting Steps

References

Applies to:

Purpose

The purpose of this document is to assist in the troubleshooting of power supply related alerts for the 7xx0 Unified Storage Appliances.

Troubleshooting Steps

Symptom: Appliance has an amber LED lit for Power Supply/PSU and (or) an alert was received from the appliance indication that there is a failed Power Supply/PSU.

Resolution:

1) Confirm whether you have one of the following faults in BUI: maintenance > Problems

• SENSOR-8000-3T: External sensors indicate that the power supply 'xxxxxxx/PSU XX' is no longer operating correctly.
• SENSOR-8000-7L: A sensor indicates that the power supply 'XXXXXXXXXX/PSU XX' is not operating properly due to some external condition
• SENSOR-8000-1N: External sensors indicate that a power supply is no longer operating correctly.

2) Verify Power Input to the power supply.

• If power cord had has been reconnected, but fault remains -> Step 3
• If power is corrected after reseating cord -> Finish

3) If the alert ID matches SENSOR-8000-3T or SENSOR-8000-7L then this indicates a power issue external to the array.

• Impact: The enclosure may be getting inadequate power. Subsequent loss of power supplies may force the enclosure to shutdown.
• Experience has shown that these types of messages will show up after a power failure, or after the customer has performed some type of main power supply or uninterruptible power supply (UPS) testing at their site. Further diagnosis must be completed for these messages.

Solution

Check to see if the power cord is connected properly or if there are other conditions that may be causing inadequate power to be provided to the indicated power supply.

It may be necessary to replace the power supply if the internal mechanism has failed.

The following steps must be completed in order to determine if the problem is internal or external to the array.

• a. Verify that the power supply switch is in the ON position
• b. Check that the plug is seated at both ends.
• c. Verify that the circuit breaker is on for the rack that the array is installed, and to the side of the rack that powers the power supply.
• d. Verify that the rack is getting power for the circuit that supplies power to the power supply

After completing these checks, and finding that the power should be distributed properly, replace parts using the following order, based on easiest to hardest to replace:

• a) replace the cable to the power supply, and check status
• b) replace the power supply, and check status
• c) replace the power strip in the rack that the cable is plugged into unless there are multiple power supply failures all on the same side of the rack, there is no reason to replace the circuit breaker.

If all of these have been replaced, engage advanced resolution for the product to help determine cause.

4) Verify SP (Service Processor) version via BUI - click the Sun/Oracle logo in the top left-hand corner.

        Or /info/info.dump in the support bundle

If SP <= 2.0.2.5, these versions contain the SP memory leak bug. It is highly possible that the customer is hitting a known issue (see Document ID 1267544.1 for description and resolution).

SP version 2.0.2.16 fixes the SP memory leak issue. Once SP FW has been updated then verify if the PSU fault persists.

If SP >= 2.0.2.16, Then Proceed to Step 5.

5) Review the FMA events - BUI: maintenance > Problems ... Is this a re-occurring failure on this particular PSU location ? Or is the customer complaining that this is a re-occurring issue ?

        Or review fmadm.out in the bundle ...

Yes. Review SR history and consult with customer to determine maintenance history for this PSU.
If the part has never been replaced then proceed to step 6.
If the part has already been replaced once, but this appears to be a legitimate failure then proceed to Step 6.

If the part has been replaced more than once and the problem still persists then engage the x64 server team

via IM in the x64-all chat room or via collaboration in MOS by selecting the proper product using the Orion PLA Manager Product Search

https://apex.oraclecorp.com/pls/apex/f?p=18194:1:143849738380509::NO.

No. Proceed to Step 6.

6) Replace the Power Supply.

References

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