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OceanStor 9000 V5 7.0 Parts Replacement 05

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Replacing an NVDIMM

Replacing an NVDIMM

A non-volatile dual in-line memory module (NVDIMM) is mainly used to save data within it if a system power outage occurs.

Impact on the System

Before replacing an NVDIMM, you must power off the P36E or C36E node. This will adversely affect the services running on the node. Exercise caution when performing this operation.

Prerequisites

  • The replacement NVDIMM is ready.
    NOTE:

    The replacement NVDIMM must be brand-new.

  • You have obtained the OceanStor 9000 V5 Version Mapping and OceanStor 9000 V5 Node Firmware Upgrade Guide of the corresponding version.
    NOTE:
    You can log in to http://support.huawei.com/enterprise/, choose Support > Cloud Storage, and click the product model to go to the document page of the product. Then, click Downloads tab page. On the Downloads tab page, click the version that you need download, the download page is displayed. And then download the documents.

Precaution

  • Only professional technical support engineers are allowed to replace an NVDIMM.
  • A P36E or C36E node has two power modules. Ensure that both are disconnected.
  • Before the replacement, remove the cable connection between the NVDIMM and its supercapacitor.
  • An NVDIMM has only one installation direction. If an NVDIMM cannot be properly seated in a slot, do not exert excess force on the module to avoid damaging the NVDIMM or slot.
  • Before replacing an NVDIMM, record the system memory capacity for check and comparison after the replacement.
  • An NVDIMM is located at 000(A) in Figure 4-133.
    Figure 4-133  Memory riser (dual-processor)

Tools and Materials

  • Flat-head screwdrivers
  • Electrostatic discharge (ESD) gloves
  • ESD wrist straps
  • ESD bags
  • Labels

Procedure

  1. Wear an ESD wrist strap or ESD gloves.
  2. Use the KVM to log in to the operating system of the node, enter user name root and its password (default: Root@storage), and run poweroff command to power off the node.

    Wait until the KVM has no output. The power-off is complete.

  3. Remove all power cables and external signal cables.
  4. Remove the storage node from the cabinet.
    1. Loosen the captive screws on the panel using a Phillips screwdriver, as shown in step 1 in Figure 4-134.

      Figure 4-134  Removing a storage node

    2. Slowly pull the storage node out along the guide rails, as shown in step 2 in Figure 4-134.
    3. Press the release buttons on both sides and pull the storage node out of the cabinet along the guide rails, as shown in step 3 in Figure 4-134.
  5. Remove the enclosure cover.
    1. Use a flat-head screwdriver to loosen the latch that secures the ejector lever of the enclosure cover, as shown in step 1 in Figure 4-135.
    2. Open the ejector lever to push the enclosure cover backward, as shown in step 2 in Figure 4-135.

      Figure 4-135  Removing an enclosure cover

  6. Optional: Remove the riser card tray. For details, see 6 in Replacing a Riser Card.

    NOTE:

    If the configured riser card is with full height and full length, remove the riser card tray first.

  7. Lift the air duct, as shown in Figure 4-136.

    Figure 4-136  Removing an air duct

  8. Remove the NVDIMM.
    1. At the same time, open the fixing clips of the NVDIMM slot, as shown in step 1 in Figure 4-137.

      Figure 4-137  Removing an NVDIMM

    2. Remove the NVDIMM from the slot, as shown in step 2 in Figure 4-137.
  9. Remove the power cable connection between the NVDIMM and its supercapacitor.

    Do not remove the power cable that connects the supercapacitor to the NVDIMM.

  10. Put the removed NVDIMM into an ESD bag.
  11. Take the replacement NVDIMM out of its ESD bag.
  12. Connect the power cable connection between the NVDIMM and its supercapacitor.
  13. Align the NVDIMM with the NVDIMM slot, and insert the NVDIMM into the slot. The two fixing clips close automatically, as shown in Figure 4-138.

    Figure 4-138  Installing an NVDIMM

  14. Align the positioning pins on the air duct with the fixing holes on the mainboard, and vertically place the air duct downwards, as shown in Figure 4-139.

    Figure 4-139  Installing an air duct

  15. Optional: Install the riser card tray. For details, see 12 in Replacing a Riser Card.

    NOTE:

    If the configured riser card is with full height and full length, install the riser card tray.

  16. Install the enclosure cover.
    1. Place the enclosure cover horizontally, align it with the fixing slots on both side panels of the enclosure, and close the ejector lever, as shown in steps 1 and 2 in Figure 4-140.

      Figure 4-140  Installing an enclosure cover

    2. Tighten the latch to secure the ejector lever of the enclosure cover using flat-head screwdriver, as shown in step 3 in Figure 4-140.
  17. Put the storage node into the cabinet.
    1. Arrange at least four persons to lift the storage node on both sides, align the inner rails on the storage node with the holding rails, and push the storage node into the cabinet along the holding rails, as shown in Figure 4-141.

      Figure 4-141  Pushing a storage node into holding rails

    2. Press the release buttons on both sides, and push the storage node into the cabinet until the storage node cannot move forward, as shown in Figure 4-142.

      Figure 4-142  Pushing a storage node into a cabinet

    3. Tighten the two captive screws on the mounting ears to secure the storage node, as shown in Figure 4-143.

      Figure 4-143  Securing a storage node

  18. Connect the storage node to the power sockets and peripheral devices according to the cable connection labels. Then power on the storage node.
  19. Log in to the storage node using the KVM.
  20. Clear NVDIMM data.
    1. Press Delete repeatedly when the screen shown in the following figure is displayed during server startup.

      Figure 4-144  BIOS startup screen

    2. Enter a BIOS password as prompted. The screen for setting the BIOS is displayed.

      NOTE:

      The default BIOS password is Huawei12#$ for the French or American keyboard and is Huawei12£$ for the English keyboard.

      To ensure system security, you are advised to change the default BIOS password after the first login.

    3. Choose Security > Clear NvDimm Flash.

      Figure 4-145  Choosing Clear NvDimm Flash

    4. In the Clear NvDimm Flash? dialog box, select Yes and press Enter.

      Figure 4-146  Starting to clear NVDIMM data

    5. Wait 20 seconds. Check whether the displayed dialog box states "Clear NvDimm flash success. Please reboot system!"

      • If yes, go to 20.f.
      • If no, contact technical support.
      Figure 4-147  Clearing NVDIMM data

    6. Press Enter and then F10. In the dialog box that is displayed, select Yes to save the configuration and restart the storage node.

      Figure 4-148  Saving the configuration and restarting the storage node

  21. During the system startup, the basic input/output system (BIOS) interface is displayed. Check the system memory capacity.
    1. If information similar to the following is displayed, press Delete repeatedly. The BIOS interface is displayed, as shown in Figure 4-149.

      Figure 4-149  BIOS startup page

      NOTE:

      If a dialog box that informs you of entering the password is displayed, enter the BIOS password (default: Huawei12#$).

    2. On the BIOS interface that is displayed, check the system memory capacity, as shown in Figure 4-150.

      Figure 4-150  Checking memory capacity

      NOTE:
      • If the system memory capacity equals the actual memory capacity, the installation is successful. Then restart the device.
      • If the system memory capacity is less than the actual memory capacity, the installation fails. Remove and reinsert the DIMM.

  22. Check and upgrade the firmware of an NVDIMM.
    1. On the node where the NVDIMM to be replaced resides, run the /usr/local/nvdimm/nvdimm getfwver command to view the value of FW version, which is the firmware version of the NVDIMM.
    2. Check whether the firmware version of the NVDIMM recorded in the OceanStor 9000 V5 Version Mapping is the same as the one you have obtained.

      • If yes, there is no need to upgrade firmware.
      • If no, go to 22.c

    3. Upgrade the firmware of the NVDIMM to the required version by referring to the OceanStor 9000 V5 NVDIMM Firmware Upgrade Guide. To obtain this guide, decompress the OceanStor 9000 V5 Node Firmware Upgrade Guide package.
  23. Inspect the system using SmartKit. Choose Home > Storage > Routine Maintenance > More > Inspection to check the system status. For details, see the OceanStor 9000 V5 Routine Maintenance.

    • If all inspection items are successful: The inspection is successful.
    • If some inspection items fail the inspection: The inspection is failed. Rectify the faults by taking recommended actions in the inspection reports. You need to reperform inspection after rectifying. If the inspection is still failed, contact Huawei technical support.

Follow-up Procedure

After replacing the NVDIMM, label the replaced NVDIMM to facilitate subsequent operations.

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Updated: 2019-07-25

Document ID: EDOC1100067965

Views: 13272

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