Procedure

  1. If the host with the faulty component does not belong to a workload domain, retrieve the password of the host.
    1. In a command line window, SSH to the SDDC Manager VM on the rack.
    2. Navigate to /home/vrack/bin.
    3. Type the following command:

      ./vrm-cli.sh lookup-password

    4. Note the ESXi and IPMI passwords of the host that is to be decommissioned.
  2. On the Dashboard page, click VIEW DETAILS for Physical Resources and click the affected rack.
  3. Scroll down to the Hosts section.
  4. In the HOST column, click the host name that shows a critical status (for example, N0).

    The Host Details page displays the details for this host.

    host2

  5. Note the OOB IP address (management IP address).
  6. Click Decommission.

    decomm

  7. Click Force decommission

    The sever decommission task is scheduled. During this task, the host is removed from the hosts list and the environment's available capacity is updated to reflect the reduced capacity.

  8. To watch the progress of the decommission task, click STATUS in the left navigation pane.

    The host is not put into maintenance mode. It is in a clean state, similar to the state it was in after imaging as it has not been used for any workload.

  9. After the host is decommissioned, the user names and passwords are set as specified in the table below.
    Table 1. ESXi Credentials

    ESXi Credentials

    User name

    root

    Password

    Password is the same as you noted down in step 1.

    Table 2. IPMI/BMC Credentials

    IPMI/BMC Credentials

    User name

    Depends on host type and vendor. This is usually root or admin.

    Password

    D3c0mm1ss10n3d!

  10. Turn on the chassis-identification LED on the host.
    1. In a web browser, navigate to the OOB IP address that you noted down in step 6.

    2. Login with your BMC user name and password.

    3. Following the documentation from your vendor, turn on the chassis-identification LED.

    The chassis-identification LED on the host starts to beacon (flashing on and off).

  11. Power off the decommissioned host and remove it from the physical rack. Note the ports on the management and ToR switches it was connected to.

What to do next

Replace the failed component on the host as appropriate and add it back to the rack. See host. For adding a new host, see host.