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Monitor node encryption in maintenance mode

Contributors netapp-perveilerk netapp-lhalbert netapp-madkat ssantho3
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If you enabled node encryption for the appliance during installation, you can monitor the node-encryption status of each appliance node, including the node-encryption state and key management server (KMS) details.

See Configure key management servers for information about implementing KMS for StorageGRID appliances.

Before you begin
Steps

  1. From the StorageGRID Appliance Installer, select Configure Hardware > Node Encryption.

    KMS clear configuration

    The Node Encryption page includes three sections:

    • Encryption Status shows whether node encryption is enabled or disabled for the appliance.

    • Key Management Server Details shows information about the KMS being used to encrypt the appliance. You can expand the server and client certificate sections to view certificate details and status.

    • Clear KMS Key disables node encryption for the appliance, removes the association between the appliance and the key management server that was configured for the StorageGRID site, and deletes all data from the appliance. You must clear the KMS key before you can install the appliance into another StorageGRID system.

      Important Clearing the KMS configuration deletes data from the appliance, rendering it permanently inaccessible. This data is not recoverable.

  2. When you are done checking node-encryption status, reboot the node. From the StorageGRID Appliance Installer, select Advanced > Reboot Controller, and then select one of these options:

    • Select Reboot into StorageGRID to reboot the controller with the node rejoining the grid. Select this option if you are done working in maintenance mode and are ready to return the node to normal operation.

    • Select Reboot into Maintenance Mode to reboot the controller with the node remaining in maintenance mode. (This option is available only when the controller is in maintenance mode.) Select this option if there are additional maintenance operations you need to perform on the node before rejoining the grid.

      Reboot controller in maintenance mode

      It can take up to 20 minutes for the appliance to reboot and rejoin the grid. To confirm that the reboot is complete and that the node has rejoined the grid, go back to the Grid Manager. The NODES page should display a normal status (green check mark icon green check mark to the left of the node name) for the appliance node, indicating that no alerts are active and the node is connected to the grid.

      Appliance node rejoined grid

Clear key management server configuration

Clearing the key management server (KMS) configuration disables node encryption on your appliance. After clearing the KMS configuration, the data on your appliance is permanently deleted and is no longer accessible. This data is not recoverable.

Before you begin

If you need to preserve data on the appliance, you must either perform a node decommission procedure or clone the node before you clear the KMS configuration.

Important When KMS is cleared, data on the appliance will be permanently deleted and no longer accessible. This data is not recoverable.

Decommission the node to move any data it contains to other nodes in StorageGRID.

About this task

Clearing the appliance KMS configuration disables node encryption, removing the association between the appliance node and the KMS configuration for the StorageGRID site. Data on the appliance is then deleted and the appliance is left in a pre-install state. This process can't be reversed.

You must clear the KMS configuration:

  • Before you can install the appliance into another StorageGRID system, that does not use a KMS or that uses a different KMS.

    Important Don't clear the KMS configuration if you plan to reinstall an appliance node in a StorageGRID system that uses the same KMS key.

  • Before you can recover and reinstall a node where the KMS configuration was lost and the KMS key is not recoverable.

  • Before returning any appliance that was previously in use at your site.

  • After decommissioning a appliance that had node encryption enabled.

Important Decommission the appliance before clearing KMS to move its data to other nodes in your StorageGRID system. Clearing KMS before decommissioning the appliance will result in data loss and might render the appliance inoperable.
Steps

  1. Open a browser, and enter one of the IP addresses for the appliance's compute controller.

    https://Controller_IP:8443

    Controller_IP is the IP address of the compute controller (not the storage controller) on any of the three StorageGRID networks.

    The StorageGRID Appliance Installer Home page appears.

  2. Select Configure Hardware > Node Encryption.

    Important If the KMS configuration is cleared, data on the appliance will be permanently deleted. This data is not recoverable.

  3. At the bottom of the window, select Clear KMS Key and Delete Data.

  4. If you are sure that you want to clear the KMS configuration, type clear in the warning dialog box and select Clear KMS Key and Delete Data.

    The KMS encryption key and all data are deleted from the node, and the appliance reboots. This can take up to 20 minutes.

  5. Open a browser, and enter one of the IP addresses for the appliance's compute controller.
    https://Controller_IP:8443

    Controller_IP is the IP address of the compute controller (not the storage controller) on any of the three StorageGRID networks.

    The StorageGRID Appliance Installer Home page appears.

  6. Select Configure Hardware > Node Encryption.

  7. Verify that node encryption is disabled and that the key and certificate information in Key Management Server Details and the Clear KMS Key and Delete Data control are removed from the window.

    Node encryption can't be reenabled on the appliance until it is reinstalled in a grid.

After you finish

After the appliance reboots and you have verified that KMS has been cleared and that the appliance is in a pre-install state, you can physically remove the appliance from your StorageGRID system. See the instructions for preparing the appliance for reinstallation.