Appliance Encryption Key stored in iLO is corrupted

Symptom

The UI of HPE OneView, enabled with secure data-at-rest option, becomes slower than usual after rebooting the appliance. The appliance maintenance console displays The appliance encryption key cannot be retrieved or is corrupt. Use the "Manage appliance encryption key" command to apply a previously saved key or disable secure data-at-rest. message.

Cause

In HPE OneView, enabled with secure data-at-rest, the Appliance Encryption Key (AEK) stored in the iLO is either corrupted or cannot be retrieved.

Action
  1. Open the appliance maintenance console.
  2. In the Main Menu screen, if the Appliance encryption key error message is displayed, select the [E] Manage appliance encryption key option.
  3. In the next screen, select the [A] Apply a backup of the appliance encryption key option.
  4. In the next screen, select the [D] Disable secure data-at-rest option.