This section explains how to replace the chassis in C-192T, C-432T, and K-432T nodes.

Step 1: Prepare for Chassis Replacement

  1. To shut down the node, use the power button at the front of the node.

    Alternatively, connect to the node by using SSH and run the sudo shutdown -h now command.

  2. Disconnect all cables from the back of the node.

  3. To pull the node out from the rack, release the small, white tabs on the rails that hold the chassis in place.

  4. Place the node on a flat surface.

  5. To release the lid, remove the small screw on the upper-right side of the node (viewed from the rear).

  6. Press the large PUSH button on each side of the chassis frame.

    C-Series Chassis Side Release Buttons

    The inner components of the node are exposed.

Step 2: Replace the M.2 Boot Drive, NVMe SSDs, and HDDs

  1. Remove the internal M.2 boot drive and then transfer it into the replacement chassis Qumulo provided to you.

    C-Series M.2 Boot Drive
  2. Remove the rear NVMe SSDs and then transfer them into the replacement chassis. The following is the mapping for the drives.

    6 4 2
    5 3 1
  3. Install the replacement chassis in an appropriate location in your server rack.

  4. Starting with the top drawer, transfer the HDDs from each tray in the original chassis into a corresponding bay in the replacement chassis. For more information about drive bays, see C-Series Drive Diagrams on Qumulo Care.

    1. To open the HDD drawer, use the blue lever at the front of the node.

    2. To remove an HDD from the original chassis, gently lift up the drive tray knob. This lets the drive move forward and unlatch.

      HDD Tray
    3. To insert an HDD into the replacement chassis, gently slide the drive tray knob backwards. This latches the drive and knob in place.

    4. Reconnect the cables to the HDDs, making sure that you reseat both ends of the cable.

  5. Reconnect the power and networking cables to the node.

  6. Power on the node.

Step 3: (Optional) Reconfiguring the Out-of-Band Management (IPMI) Settings

If the current IPMI settings for your node are configured statically (rather than by using DHCP), you must reapply the static IPMI settings to the replacement node. For more information, see IPMI Quick Reference Guide for Qumulo C-Series on Qumulo Care.