You can add an ESXi host to the Virtual SAN cluster by creating a new Host Profile. A new profile can be created by extracting and reusing the designated reference host's configuration.

Before you begin

Verify that the host is in maintenance mode.

Procedure

  1. Create a new Host Profile.
    1. Navigate to the Host profiles view.
    2. Click the Extract Profile from a Host icon (Create Profile).
    3. Select the host that you intend to use as the reference host and click Next.

      The selected host must be an active host.

    4. Type a name and description of the new profile and click Next.
    5. Review the summary information of the new host profile and click Finish.

      The new profile appears in the profile list.

  2. Attach the host to the intended host profile.
    1. From the Profile List in the Host Profiles main view, select the host profile to be applied to the Virtual SAN host.
    2. Click the Attach/Detach Hosts and clusters to a host profile icon (Attach/Detach Hosts and clusters to a host profile icon).
    3. Select the host from the expanded list and click Attach to attach the host to the profile.

      The host is added to the Attached Entities list.

    4. Click Next.
    5. Click Finish to complete attaching the host to the profile.
  3. Detach the referenced Virtual SAN host from the Host Profile.

    When a Host Profile is attached to a cluster, the host or hosts within that cluster are also attached to the Host Profile. However, when the Host Profile is detached from the cluster, the association between the host or hosts within the cluster and that of the Host Profile remains intact.

    1. From the Profile List in the Host Profiles main view, select the Host Profile to be detached from a host or cluster.
    2. Click the Attach/Detach Hosts and clusters to a host profile icon ( Attach a Host or Cluster to a Host Profile icon).
    3. Select the host or cluster from the expanded list and click Detach.

      The selected host or cluster is added to the Attached Entities list.

    4. Click Detach All to detach all the listed hosts and clusters from the profile.
    5. Click Next.
    6. Click Finish to complete attaching the host to the profile.
  4. Verify that the compliance of the Virtual SAN host to its attached Host Profile and determine if any, configuration parameters on the host are different from those specified in the Host Profile.
    1. Navigate to a Host Profile.

      The Objects tab lists all Host Profiles, the number of hosts attached to that Host Profile, and summarized results of the last compliance check.

    2. Click the Check Host Profile Compliance icon (Check Host Profile Compliance icon).

      In order to see specific detail on which parameters differ between the host that failed compliance and the Host Profile, click on the Monitor tab and select the Compliance view. Then, expand the object hierarchy and select the failing host. The differing parameters are displayed in the Compliance window, below the hierarchy.

      In the event of a compliance failure, use the Remediate action to apply the Host Profile settings onto the host. The action changes all Host Profile managed parameters to the values contained in the Host Profile attached to the host.

  5. Remediate the host to fix any compliance error on the host.
    1. Select the Monitor tab, then click Compliance.
    2. Right-click the host or hosts that you want to remediate and select All vCenter Actions > Host Profiles > Remediate.

      You can update or change the user input parameters for the Host Profiles policies by customizing the host.

    3. Click Next.
    4. Review the tasks that are necessary to remediate the Host Profile and click Finish.

    The host is now part of the Virtual SAN cluster and its resources are accessible to the Virtual SAN cluster. The host can also access all existing Virtual SAN Storage I/O Policies in the VSAN cluster.