Oracle ZFS Storage ZS3-2
 

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Applies to:

Goal

How to Replace a Memory DIMM on a ZS3-2

Solution

DISPATCH INSTRUCTIONS

WHAT SKILLS ARE REQUIRED?: No special skills required, Customer Replaceable Unit (CRU) procedure

Note: When you add or remove DIMMs to the motherboard, there are guidelines to follow:

■ You can configure an odd number of DIMMs, however an equally-balanced even number of DIMMs provides better performance.
■ When you add DIMMs in pairs, the pair should be of the same part number.
■ Fill all of the blue slots first, and then add DIMMs to the white slots
■ If you will mix DIMM capacities, install the largest capacities first, then consecutively smaller capacities.
■ If a slot is empty, install a DIMM filler.

TIME ESTIMATE: 45 minutes
TASK COMPLEXITY: 0

PROBLEM OVERVIEW

What: Faulty DIMM
Where: Chassis SN and DIMM ID to be specified by TSC. FE to confirm via BUI / CLI.
Why: The DIMM reported failed and TSC has recommended replacement.

REMOVAL/REPLACEMENT INSTRUCTIONS:

WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY? :

If the system is still up and functioning, customer should perform an orderly and graceful shutdown of applications and OS.  Then power off the server and remove the AC power cords from the system.

If the ZS3-2 is in a cluster any resources imported on this nas-head will be failed over to the partner node when the nas-head having maintenance performed is being powered off. This will cause a brief outage while the resources are transferred.

A data backup is not a prerequisite but is a wise precaution.

WHAT ACTIONS ARE REQUIRED?:

1. Prepare the server for service.

1. Power off the server and disconnect the power cords from the power supplies.
2. Extend the server to the maintenance position in the rack.
3. Attach an anti-static wrist strap.
4. Remove the top cover.
5. Remove the front air filter
6. Remove all of the fan modules.
7. Remove the fan tray.
8. Raise the Drive Tray to the Service Position.
9. Remove the air duct.

2. Locate the DIMM to remove.

3. Press down and out on the release levers at both ends of the DIMM slot.

4. Lift the DIMM up and out the slot.

5. Set the DIMM aside.

6. Repeat from Step 2 for any additional DIMMs to be removed.

7. Confirm the release levers of the slot where you are installing the DIMM are OPEN.

8. Align the DIMM to the location where it installs into the slot.

      Ensure that the notch in the DIMM lines up with the key in the slot.

9. Insert the DIMM into the slot, pressing firmly so that both release levers click closed.

10. Repeat from Step 7 through Step 9 for any additional DIMMs that you are installing.

1. Install the air duct.
2. Secure the Drive Tray.
3. Install the fan tray.
4. Install all of the fan modules.
5. Install the front air filter.
6. Replace the top cover
7. Remove any anti-static measures that were used.
8. Return the server to it's normal operating position within the rack.
9. Re-install the AC power cords and any data cables that were removed.

11. Verify if faults still exist in the ILOM for the replaced DIMMs.
      If so, clear them.

    Steps:

    login to the ILOM CLI and launch a Fault Management Shell session
    -> start /SP/faultmgmt/shell
    Are you sure you want to start /SP/faultmgmt/shell (y/n)? y

    faultmgmtsp>

    use the "fmadm faulty -a" command to list out all active faults
    faultmgmtsp> fmadm faulty -a

    If the DIMM that was just replaced is still listed then clear the fault using the command "fmadm replaced <fru|cru|uuid>" for example:
    faultmgmtsp> fmadm replaced /SYS/MB/P0/D2

    confirm that the faults are cleared and then exit out of the fault management shell
    faultmgmtsp> fmadm faulty -a
    No faults found
    faultmgmtsp> exit
    ->

12. Power on server. Verify that the Power/OK indicator led lights steady on.

WHAT ACTIONS ARE REQUIRED TO RETURN THE SYSTEM TO AN OPERATIONAL STATE?:

Boot up system and verify full functionality, if the ZS3-2 is part of an active/active cluster consider issuing a failback to transfer any resources back to this node.

REFERENCE INFORMATION:

https://docs.oracle.com/cd/E27998_01/index.html

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