Lenovo ThinkServer RD240 Software User's Manual page 281

Figure 8.23 Authenticate Drive Security Settings Screen
9. Enter the current security key to authenticate the changes.
The Change Security Settings - Pass Phrase screen appears, as
shown in Figure
Figure 8.24 Change Security Settings - Pass Phrase Screen
10. If you choose to, click the option to use a passphrase in addition to
the security key.
11. If you chose to use a passphrase, either enter the existing
passphrase or enter a new passphrase, and enter the passphrase
again to confirm.
The text box for the passphrase can hold up to 32 characters. The
key must be at least eight characters.
The next screen that appears describes the changes you made and
asks you whether you want to confirm these changes.
Selecting Full Disk Encryption Security Options
8.24.
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