HP Secure Encryption - Manual (Page 61)

Troubleshooting 61
If the OS logical drive is encrypted, offline HP SSA will be required to perform the steps below. For more
information, see the HP Smart Storage Administrator User Guide.
To clear the controller password:
1. Open Encryption Manager (" Opening Encryption Manager " on page 32 ).
2. Log in as the Crypto Officer (" Logging into Encryption Manager " on page 32 ).
3. Under Settings, locate Controller Password. Click Remove Controller Password.
4. A window appears, asking you to confirm that you want to remove the controller password. Click Yes.
Volumes appear online and are available.
Lost or forgotten Master Key
IMPORTANT: HP strongly recommends storing a backup of the Master Encryption Key in a
secure location. In some instances it is possible that a missing key will render your data
inaccessible. If operating HP Secure Encryption in Remote Key Management Mode, HP strongly
recommends that you back up the ESKM regularly.
Local mode
If operating HP Secure Encryption in Local Mode, securing the Master Encryption Key value is critical to
accessing the encrypted logical drive data. If the controller requires replacement or if the physical drives are
moved to another controller, a matching Master Key is required to gain access to the data. Master Keys are
not recoverable if lost. If the Master Key is lost or forgotten, you must perform a data restore operation from
the backup media to regain access to the data.
Remote mode
Locating the key using the HP ESKM 3.1
To locate a lost or forgotten Master Encryption Key using the HP ESKM 3.1:
1. Log in to the HP ESKM 3.1 (" Logging in to the HP ESKM 3.1 " on page 17 ).