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CH222 Compute Node V100R001 User Guide 18

This document describes the appearance, functions, structure, and installation, removal, and configuration methods of the CH222 compute node.
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Removing a RAID Controller Card

Removing a RAID Controller Card

You need to remove a redundant array of independent disks (RAID) controller card before replacing it with a new one.


Remove a RAID controller card in any of the following scenarios:

  • The RAID controller card is faulty.
  • The RAID controller card needs to be replaced by a newer model.

Figure 5-80 shows the RAID controller card installation position on the CH222.

Figure 5-80 RAID controller card installation position




Data preparation is not required for this operation.


  • Electrostatic discharge (ESD) gloves.
  • M3 phillips screwdriver.
  • Packing materials, for example, ESD bag.


  1. Press and hold down the spring on a RAID controller card connector and remove the MiniSAS cable from the RAID controller card. See steps (1) and (2) in Figure 5-81.

    Figure 5-81 Removing an MiniSAS cable

  2. Remove the bridge board between the hard disk drawer and the expansion board, as shown in Figure 5-82.

    Figure 5-82 Removing the bridge board

  3. Only personnel authorized by Huawei and Huawei technical support personnel can remove the mainboard.

    Use the Phillips screw to remove the three captive screw on the CH222 mainboard. See step (1) in Figure 5-83.

    Figure 5-83 Removing the mainboard

  4. Pull out the CH222 until you can see the RAID control card. See step (2) in Figure 5-84.
  5. Use the Phillips screwdriver to remove the two screws that secure the RAID controller card. See step (1) in Figure 5-84.

    Figure 5-84 Removing the RAID controller card

  6. Lift the RAID controller card away from the connector on the mainboard. See step (2) in Figure 5-84.
  7. Place the removed RAID controller card in an ESD bag.
Updated: 2019-08-16

Document ID: EDOC1000018075

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