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FusionStorage V100R006C10 Block Storage Service Parts Replacement 06

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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).
Adding a DIMM

Adding a DIMM

A storage node supports up to 16 DDR4 DIMMs.

Impact on the System

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

Prerequisites

  • The adding DIMM is ready.

Precaution

  • Only professional technical support engineers are allowed to add a DIMM.
  • A storage node has two power modules. Ensure that both are disconnected.
  • The 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 adding memory modules must be the same as the other memory modules. If new memory modules are different from the old memory modules, it is recommended to change all old memory modules in the node.
  • It is recommended to add same capacity memory modules in same type of nodes. If memory capacity in same type of nodes is different, it could cause faulty due to unbalanced performance between nodes.
  • Before adding a DIMM, record the system memory capacity for check and comparison after the replacement.

The following lists rules to install a DIMM:

  • A RH2288 V3 12-slot node configures two CPUs and 16 DDR4 DIMM slots, as shown in Figure 3-90.
    Figure 3-90  Memory riser

  • You must comply with the memory configuration rules listed in Table 3-3.

    Table 3-3  Memory configuration rules for storage node with two CPUs

    DIMMs

    Slot to Install DIMMs

    2

    A/ (000), A/ (100)

    3

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

    4

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

    5

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

    6

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

    7

    A/ (000), A/ (100), B/ (010), B/ (110), C/ (020), C/ (120), D/ (030)

    8

    A/ (000), A/ (100), B/ (010), B/ (110), C/ (020), C/ (120), D/ (030), D/ (130)

    9

    A/ (000), A/ (100), B/ (010), B/ (110), C/ (020), C/ (120), D/ (030), D/ (130), E/ (001)

    10

    A/ (000), A/ (100), B/ (010), B/ (110), C/ (020), C/ (120), D/ (030), D/ (130), E/ (001), E/ (101)

    11

    A/ (000), A/ (100), B/ (010), B/ (110), C/ (020), C/ (120), D/ (030), D/ (130), E/ (001), E/ (101), F/ (011)

    12

    A/ (000), A/ (100), B/ (010), B/ (110), C/ (020), C/ (120), D/ (030), D/ (130), E/ (001), E/ (101), F/ (011), F/ (111)

    13

    A/ (000), A/ (100), B/ (010), B/ (110), C/ (020), C/ (120), D/ (030), D/ (130), E/ (001), E/ (101), F/ (011), F/ (111), G/ (021)

    14

    A/ (000), A/ (100), B/ (010), B/ (110), C/ (020), C/ (120), D/ (030), D/ (130), E/ (001), E/ (101), F/ (011), F/ (111), G/ (021), G/ (121)

    15

    A/ (000), A/ (100), B/ (010), B/ (110), C/ (020), C/ (120), D/ (030), D/ (130), E/ (001), E/ (101), F/ (011), F/ (111), G/ (021), G/ (121), H/ (031)

    16

    A/ (000), A/ (100), B/ (010), B/ (110), C/ (020), C/ (120), D/ (030), D/ (130), E/ (001), E/ (101), F/ (011), F/ (111), G/ (021), G/ (121), H/ (031), H/ (131)

Tools and Materials

  • Flat-head screwdrivers
  • Electrostatic discharge 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 enclosure.
    1. Slide the storage node out of the cabinet, as shown in step 1 in Figure 3-91.
    2. Press the baffle plate and slide the storage node out of enclosure, as shown in step 2 in Figure 3-91.

    Figure 3-91  Removing a storage node

  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 3-92.
    2. Open the ejector lever to push the enclosure cover backwards, as shown in step 2 in Figure 3-92.

      Figure 3-92  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. Take out the air duct, as shown in Figure 3-93.

    Figure 3-93  Removing an air duct

  8. Remove the DIMM.

    NOTE:

    If new memory modules is different from the old memory modules, it is recommended to change all old memory modules in the node.

    1. At the same time, open the fixing clips of the DIMM slot, as shown in step 1 in Figure 3-94.

      Figure 3-94  Removing a DIMM

    2. Remove the DIMM from the slot, as shown in step 2 in Figure 3-94.
  9. Place the removed DIMM in a memory riser box.
  10. Take the spare DIMM out of the memory riser box.
  11. Open the two fixing clips on the DIMM slot simultaneously. See Figure 3-95.

    Figure 3-95  Opening the fixing clips on a DIMM slot

  12. Align the DIMM with the DIMM slot, and insert the DIMM into the slot. See Figure 3-96.

    The two fixing clips close automatically.

    Figure 3-96  Installing a DIMM

  13. Align the positioning pins on the air duct with the fixing holes on the mainboard by following the instructions on the enclosure, and vertically place the air duct downwards, as shown in Figure 3-97.

    Figure 3-97  Installing an air duct

  14. 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.

  15. 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 3-98.
    2. Use a flat-head screwdriver to tighten the latch in order to secure the ejector lever of the enclosure cover, as shown in step 3 in Figure 3-98.

      Figure 3-98  Installing an enclosure cover

  16. Put the storage node into the cabinet.
    1. Align the securing holes in the inner rails with the positioning pins on the storage node, and secure the inner rails to the storage node, as shown in step 1 in Figure 3-99.
    2. Align the inner rails with the holding rails, and push the storage node into the holding rails, as shown in step 2 in Figure 3-99.
    3. Ensure that the storage node is horizontally installed and screwed.

    Figure 3-99  Installing a storage node

  17. Connect the storage node to the power sockets and peripheral devices according to the cable connection labels. Then power on the storage node.
  18. 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 3-100.

      Figure 3-100  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 3-101.

      Figure 3-101  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.

  19. Repeat 8 to 18 on nodes that to be adding memory modules.
  20. Restart nodes added memory modules and power on the other nodes in the system.
  21. Wait for about 10 minutes then log in to DeviceManager, click Alarms, check if there are any major alarms or more critical ones.

    • If yes, rectify the fault according to suggestion.
    • If no, no further operations are required.

Follow-up Procedure

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

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Updated: 2019-02-01

Document ID: EDOC1000175242

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