Additional tpm features – HP ProLiant BL620c G7 Server-Blade User Manual
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CAUTION:
When a TPM is installed and enabled on the server blade, data access is locked if
you fail to follow the proper procedures for updating the system or option firmware, replacing the
system board, replacing a hard drive, or modifying OS application TPM settings.
For more information on firmware updates and hardware procedures, see the HP Trusted Platform Module
Best Practices White Paper on the HP website
For more information on adjusting TPM usage in BitLocker™, see the Microsoft website
Server updates with an HP Trusted Platform Module and
BitLocker™ enabled
When a TPM is installed and enabled in RBSU, and when the Microsoft® Windows® BitLocker™ Drive
Encryption feature is enabled, always disable BitLocker™ before performing any of the following
procedures:
•
Restarting the computer for maintenance without a PIN or startup key
•
Updating firmware
•
Upgrading critical early boot components
•
Upgrading the system board to replace or remove the TPM
•
Disabling or clearing the TPM
•
Moving a BitLocker™-protected drive to another server blade
•
Adding an optional PCI device, such as a storage controller or network adapter
Additional TPM features
The following features are supported by Intel® Xeon® E7 family processors and require a TPM to be present:
•
Intel AES-NI is a processor-assisted AES encryption, supported by Intel Xeon E7 family processors, that
makes enabled encryption software faster and stronger, and offers better data protection. With this
technology, the encryption and decryption times are greatly reduced. AES-NI is enabled by default and
requires a TPM to be present.
•
Intel TXT is a hardware solution, supported by Intel Xeon E7 family processors, that validates the
behavior of key software within a server at startup. The server blade will support this feature with a
future planned firmware upgrade. The server checks the hardware and software consistency behaviors
at launch time against a known good sequence. Using this verification process, the server can quickly
assess whether any attempts have been made to alter or tamper with the launch time environment. TXT
is enabled by default, and requires a TPM to be present.