Software and configuration utilities 83
Safety and security benefits
When you flash the system ROM, ROMPaq writes over the backup ROM and saves the current ROM as a
backup, enabling you to switch easily to the alternate ROM version if the new ROM becomes corrupted
for any reason. This feature protects the existing ROM version, even if you experience a power failure
while flashing the ROM.
USB support
HP provides both standard USB support and legacy USB support. Standard support is provided by the
operating system through the appropriate USB device drivers. HP provides support for USB devices before
the operating system loads through legacy USB support, which is enabled by default in the system ROM.
HP hardware supports USB version 1.1.
Legacy USB support provides USB functionality in environments where USB support is normally not
available. Specifically, HP provides legacy USB functionality at:
• POST
• RBSU
• Diagnostics
• DOS
• Environments which do not support USB natively
For more information on ProLiant USB support, refer to the HP website
(http://www.compaq.com/products/servers/platforms/usb-support.html
).
Internal USB functionality
An internal USB connector is available for use with USB drive keys only. This solution provides for use of
a permanent boot drive from a USB drive key installed in the internal connector, avoiding issues of
clearance on the front of the rack and physical access to secure data.
For additional security, you can disable the external USB connectors through RBSU. Disabling the rear
USB connectors in RBSU disables both rear USB ports.
External USB functionality
HP provides external USB support to enable local connection of USB devices for server administration,
configuration, and diagnostic procedures.
For additional security, external USB functionality can be disabled through RBSU.
Internal SD support
An internal SD connector is available for use with embedded Hypervisors. This solution provides for use of
a permanently installed SD card in the internal connector, decreasing the possibility of tampering or loss.
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