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FusionStorage OBS 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 a DIMM of a 2288H V5 12-Slot Node or 5288 V5 36-Slot Node

Replacing a DIMM of a 2288H V5 12-Slot Node or 5288 V5 36-Slot Node

A storage node supports up to 24 DDR4 RDIMMs.

Impact on the System

Before replacing a DIMM on a storage node, you must power off the node. This will adversely affect the services running on the node.

Prerequisites

  • A spare DIMM is ready.
  • The faulty DIMM has been located.

Precautions

  • A DIMM has only one installation direction. If a DIMM cannot be properly seated in a slot, do not exert excess force on the module to avoid damaging the DIMM or slot.
  • The type, capacity, and vendor of the spare DIMM must be the same as those of the faulty DIMM. If the type, capacity, and vendor of the spare DIMM are different from those of the faulty DIMM, you are advised to change all old DIMMs on the node.
  • Before replacing a DIMM, record the system memory capacity for check and comparison after the replacement.
  • A storage node provides 24 DDR4 RDIMM slots. Each CPU supports six memory channels and each memory channel supports two DIMMs, as shown in Figure 16-1.
    Figure 16-1 Positions of DIMMs
    Table 16-1 lists the memory channels.
    Table 16-1 Memory channels

    CPU

    Channel

    CPU1

    000 (A), 010 (B), 020 (C), 030 (D), 040 (E), 050 (F)

    CPU2

    100 (A), 110 (B), 120 (C), 130 (D), 140 (E), 150 (F)

    You must comply with the memory configuration rules listed in Table 16-2.
    Table 16-2 Memory configuration rules for a storage node

    Number of DIMMs

    Slots Housing the DIMMs

    1

    000 (A)

    2

    000 (A), 100 (A)

    3

    000 (A), 100 (A), 010 (B)

    4

    000 (A), 100 (A), 010 (B), 110 (B)

    5

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C)

    6

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 120 (C)

    7

    000 (A), 100 (A), 010 (B), 110 (B), 120 (C), 030 (D), 040 (E)

    8

    000 (A), 100 (A), 010 (B), 110 (B), 030 (D), 130 (D), 040 (E), 140 (E)

    9

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 030 (D), 130 (D), 040 (E), 140 (E)

    10

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 120 (C), 030 (D), 130 (D), 040 (E), 140 (E)

    11

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 120 (C), 030 (D), 130 (D), 040 (E), 140 (E), 050 (F)

    12

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 120 (C), 030 (D), 130 (D), 040 (E), 140 (E), 050 (F), 150 (F)

    13

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 120 (C), 030 (D), 130 (D), 040 (E), 140 (E), 050 (F), 150 (F), 001 (G)

    14

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 120 (C), 030 (D), 130 (D), 040 (E), 140 (E), 050 (F), 150 (F), 001 (G), 101 (G)

    15

    000 (A), 100 (A), 010 (B), 110 (B), 120 (C), 030 (D), 130 (D), 040 (E), 140 (E), 150 (F), 001 (G), 101 (G), 011 (H), 031 (J), 041 (K)

    16

    000 (A), 100 (A), 010 (B), 110 (B), 030 (D), 130 (D), 040 (E), 140 (E), 001 (G), 101 (G), 011 (H), 111 (H), 031 (J), 131 (J), 041 (K), 141 (K)

    17

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 030 (D), 130 (D), 040 (E), 140 (E), 050 (F), 001 (G), 101 (G), 011 (H), 111 (H), 021 (I), 131 (J), 141 (K)

    18

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 120 (C), 030 (D), 130 (D), 040 (E), 140 (E), 050 (F), 150 (F), 001 (G), 101 (G), 011 (H), 111 (H), 021 (I), 121 (I)

    19

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 120 (C), 030 (D), 130 (D), 040 (E), 140 (E), 050 (F), 150 (F), 001 (G), 101 (G), 011 (H), 111 (H), 121 (I), 031 (J), 041 (K)

    20

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 120 (C), 030 (D), 130 (D), 040 (E), 140 (E), 050 (F), 150 (F), 001 (G), 101 (G), 011 (H), 111 (H), 031 (J), 131 (J), 041 (K), 141 (K)

    21

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 120 (C), 030 (D), 130 (D), 040 (E), 140 (E), 050 (F), 150 (F), 001 (G), 101 (G), 011 (H), 111 (H), 021 (I), 031 (J), 131 (J), 041 (K), 141 (K)

    22

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 120 (C), 030 (D), 130 (D), 040 (E), 140 (E), 050 (F), 150 (F), 001 (G), 101 (G), 011 (H), 111 (H), 021 (I), 121 (I), 031 (J), 131 (J), 041 (K), 141 (K)

    23

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 120 (C), 030 (D), 130 (D), 040 (E), 140 (E), 050 (F), 150 (F), 001 (G), 101 (G), 011 (H), 111 (H), 021 (I), 121 (I), 031 (J), 131 (J), 041 (K), 141 (K), 051 (L)

    24

    000 (A), 100 (A), 010 (B), 110 (B), 020 (C), 120 (C), 030 (D), 130 (D), 040 (E), 140 (E), 050 (F), 150 (F), 001 (G), 101 (G), 011 (H), 111 (H), 021 (I), 121 (I), 031 (J), 131 (J), 041 (K), 141 (K), 051 (L), 151 (L)

Tools and Materials

  • Flat-head screwdrivers
  • Phillips screwdrivers
  • ESD gloves
  • ESD wrist straps
  • ESD bags
  • Labels

Replacement Process

Replace a DIMM by following the process shown in Figure 16-2.

Figure 16-2 DIMM replacement process

Procedure

  1. Remove the storage node from its cabinet and remove the chassis cover. For details, see Basic Operations.
  2. Remove the air duct.

    Lift the air duct according to the signs on the air duct, as shown in the following figures.
    Figure 16-3 Removing the air duct of a 2288H V5 node
    Figure 16-4 Removing the air duct of a 5288 V5 node

  3. Remove the DIMM.

    1. At the same time, open the fixing clips of the DIMM slot, as shown in step 1 in Figure 16-5.
      Figure 16-5 Removing a DIMM
    2. Remove the DIMM from the slot, as shown in step 2 in Figure 16-5.

  4. Place the removed DIMM in a DIMM box.
  5. Take the spare DIMM out of its DIMM box.
  6. Install the DIMM.

    1. Open the two fixing clips on the DIMM slot simultaneously, as shown in Figure 16-6.
      Figure 16-6 Opening the fixing clips on a DIMM slot
    2. Align the DIMM with the DIMM slot, and insert the DIMM into the slot, as shown in Figure 16-7.

      The two fixing clips close automatically.

      Figure 16-7 Installing a DIMM

  7. Install the air duct.

    Align the positioning pins on the air duct with the fixing holes on the mainboard according to the instructions on the chassis, and vertically place the air duct downwards, as shown in the following figures.
    Figure 16-8 Installing the air duct of a 2288H V5 node
    Figure 16-9 Installing the air duct of a 5288 V5 node

  8. Install the chassis cover and put the storage node into the cabinet. For details, see Basic Operations.
  9. Connect the storage node to the power sockets and peripheral devices according to the cable connection labels. Ensure that all cables are correctly connected and then power on the storage node. If the storage node is not powered on, press the power button on the front panel.
  10. Use the KVM to log in to the storage node as user root.
  11. Check whether the DIMM is successfully installed.

    1. When the screen shown in Figure 16-10 is displayed during the system startup, press Delete.
      Figure 16-10 BIOS startup page
      NOTE:

      If a dialog box that informs you of entering the password is displayed, enter the BIOS password (default: Admin@9000).

    2. On the BIOS interface that is displayed, check the system memory capacity, as shown in Figure 16-11.
      Figure 16-11 Checking memory capacity
      NOTE:
      • If the system memory capacity equals the actual memory capacity, the installation is successful. Restart the device.
      • If the system memory capacity is less than the actual memory capacity, the installation fails. Remove and reinsert the DIMM.

  12. Check the system status.

    On SmartKit, choose Home > Storage > Routine Maintenance > More > Inspection and check the system status.
    • If all inspection items pass the inspection, the inspection is successful.
    • If some inspection items fail, the inspection fails. Rectify the faults by taking recommended actions in the inspection reports. Perform inspection again after fault rectification. If the inspection still fails, contact Huawei technical support.

    For details, see the FusionStorage OBS Administrator Guide.

Follow-up Procedure

Label the replaced DIMM to facilitate subsequent operations.

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Updated: 2019-07-05

Document ID: EDOC1100051325

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