How to replace a failed Power Supply in a Datacenter InfiniBand Switch 36 or QDR InfiniBand Gateway Switch

Asset ID:	1-71-1680097.1
Update Date:	2018-02-21
Keywords:

Solution Type Technical Instruction Sure

Solution 1680097.1 : How to replace a failed Power Supply in a Datacenter InfiniBand Switch 36 or QDR InfiniBand Gateway Switch

Applies to:

Exadata X4-2 Hardware - Version All Versions and later
Big Data Appliance X6-2 Hardware - Version All Versions and later
Oracle SuperCluster M7 Hardware - Version All Versions and later
Zero Data Loss Recovery Appliance X6 Hardware - Version All Versions and later
Exadata X6-8 Hardware - Version All Versions and later
Information in this document applies to any platform.

Goal

Replace a failed Power Supply in a Datacenter InfiniBand Switch 36 or QDR InfiniBand Gateway Switch

Solution

DISPATCH INSTRUCTIONS
   WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED?:
   TIME ESTIMATE: 60 minutes
   TASK COMPLEXITY: 3

FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS:
   PROBLEM OVERVIEW: A Power Supply has failed in a Datacenter InfiniBand Switch 36 or QDR InfiniBand Gateway Switch

   WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY?: A single Power Supply replacement is Hot Swappable

   WHAT ACTION DOES THE ADMINISTRATOR NEED TO TAKE?: No special action required as a single Power Supply replacement is hot swappable.

   WHAT ACTION DOES THE FIELD ENGINEER NEED TO TAKE?:

Determine which Power Supply Is Faulty

You must determine which power supply is faulty before you replace it.

        1. Check to see if any System Service Required LEDs are lit or flashing.

                    Top Locator White
                                On – No function.
                                Off – Disabled.
                                Flashing – The switch is identifying itself.

                    Middle Attention Amber
                                On – Normal fault detected.
                                Off – No faults detected.
                                Flashing – No function.

                    Bottom
                                OK Green On – Switch is functional without fault.
                                Off – Switch is off or initializing.
                                Flashing – No function.

        2. Visually inspect the power supplies to see if any of their status LEDs are lit or flashing.

                    Top OK Green
                                On – 12 VDC is supplied.
                                Off – No DC voltage is present.
                                Flashing – No function.

                    Middle Attention Amber
                            On – Fault detected, 12 VDC shut down.
                            Off – No faults detected.
                            Flashing – No function.

                    Bottom AC Green
                            On – AC power present and good.
                            Off – AC power not present.
                            Flashing – No function.

            Caution –
                    If a power supply has shut down because of a thermal or overcurrent condition, signified by the amber Attention LED lighting, remove the respective power cord from the chassis.
                    Allow the power supply to completely cool for at least 15 minutes. A shorter cooling time might cause damage to the power supply when the power cord is reattached. If the
                    Attention LED lights amber upon reattaching the power cord, replace the power supply.

        3. Access the Oracle ILOM CLI.

        4. Verify that a power supply is faulty.
                If a power supply is faulty, you will see /SYS/PSUx listed in the output under Target:, where x is 0 (left power supply) or 1 (right power supply).

                         For example:
                                -> show -d targets /SP/faultmgmt
                                    /SP/faultmgmt
                                    Targets:
                                    0 (/SYS/PSU0)
                                ->


Powering Off the Power Supply

        1. Determine which power supply is to be removed.
        2. At the front of the switch chassis, remove the power cord from the respective power supply.

Remove a Power Supply

        1. Press and hold the release tab to the left and pull on the handle of the power supply.
        2. Continue to pull the handle of the power supply to remove it from the chassis.
        3. Set the power supply aside.

Installing the Replacement Power Supply

    Inspect the Replacement Power Supply Hardware

        1. Unwrap the replacement power supply from its antistatic packaging.
        2. Verify that there is no visible damage to the power supply chassis.
        3. Verify that the release tab moves freely and smoothly.
        4. Inspect the power supply connectors.
                Verify that the connectors are clean and without damage.
        5. Verify that the slot where the power supply installs is clean and free of debris.
        6. Verify that the slot connector pins are straight and not missing.
        7. Verify that the slot connector receptacles are free from obstructions.
        8. Orient the power supply to the opening in the switch chassis with the status
                LEDs on the left and the release tab on the right.
        9. Slide the power supply into the open slot, pushing at the handle.
        10. When the power supply seats, push firmly so that the release tab clicks to secure the power supply into the chassis.
        11. Reconnect the power cord to the power supply.

OBTAIN CUSTOMER ACCEPTANCE
   WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE TO RETURN THE SYSTEM TO AN OPERATIONAL STATE?:

1. Verify that the fan Attention LED goes out.
2. Access the Oracle ILOM CLI.
3. Enter the restricted Linux shell.
        -> show /SYS/Fabric_Mgmt
4. Verify the power supply’s operation with the checkpower and checkvoltages commands on the management controller.

    For example, to check the power supplies:

                FabMan@switch_name->checkpower
                PSU 0 present status: OK
                PSU 1 present status: OK
                All PSUs OK
                FabMan@switch_name->

                FabMan@switch_name->checkvoltages
              Voltage ECB OK
              Measured 3.3V Main = 3.28 V
            Measured 3.3V Standby = 3.40 V
            Measured 12V = 11.90 V
              Measured 5V = 4.99 V
              Measured VBAT = 3.01 V
            Measured 2.5V = 2.49 V
              Measured 1.8V = 1.78 V
              Measured I4 1.2V = 1.22 V
              All voltages OK
              FabMan@switch_name->

PARTS NOTE:
         300-2299     Type A247A 760 Watt AC Input Power Supply

REFERENCE INFORMATION:

Sun Datacenter InfiniBand Switch 36 Service Manual for Firmware Version 2.1

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