HP Scanjet 5000 User Guide - Page 115

Automatic Server Recovery, USB support, External USB functionality, Redundant ROM support

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The ROMPaq utility checks the system and provides a choice (if more than one exists) of available firmware revisions. For more information, go to the HP website http://www.hp.com/go/hpsc. Enter your product name in the Enter a product name or number field and click Go. Automatic Server Recovery ASR is a feature that causes the system to restart when a catastrophic operating system error occurs, such as a blue screen, ABEND, or panic. A system fail-safe timer, the ASR timer, starts when the System Management driver, also known as the Health Driver, is loaded. When the operating system is functioning properly, the system periodically resets the timer. However, when the operating system fails, the timer expires and restarts the server. ASR increases server availability by restarting the server within a specified time after a system hang. You can disable ASR from the System Management Homepage or through UEFI System Utilities. USB support HP provides standard USB 2.0 support, standard USB 3.0 support, and legacy USB support. Standard support is provided by the OS through the appropriate USB device drivers. Before the OS loads, HP provides support for USB 2.0 devices through legacy USB support, which is enabled by default in the system ROM. USB 3.0 ports are not functional before the OS loads. The native OS provides USB 3.0 support through appropriate xHCI drivers. Legacy USB support provides USB functionality in environments where USB support is not available normally. Specifically, HP provides legacy USB functionality for the following: ● POST (system boot) ● UEFI System Utilities ● Pre-boot UEFI shell ● DOS ● Operating environments which do not provide native USB support 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 USB options in UEFI System Utilities. Redundant ROM support The server enables you to upgrade or configure the ROM safely with redundant ROM support. The server has a single ROM that acts as two separate ROM images. In the standard implementation, one side of the ROM contains the current ROM program version, while the other side of the ROM contains a backup version. NOTE: The server ships with the same version programmed on each side of the ROM. 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 Utilities and features 107

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The ROMPaq utility checks the system and provides a choice (if more than one exists) of available firmware
revisions.
For more information, go to the HP website
go/hpsc
. Enter your product name in the
Enter a product name or number
field and click
Go
.
Automatic Server Recovery
ASR is a feature that causes the system to restart when a catastrophic operating system error occurs, such as
a blue screen, ABEND, or panic. A system fail-safe timer, the ASR timer, starts when the System Management
driver, also known as the Health Driver, is loaded. When the operating system is functioning properly, the
system periodically resets the timer. However, when the operating system fails, the timer expires and
restarts the server.
ASR increases server availability by restarting the server within a specified time after a system hang. You can
disable ASR from the System Management Homepage or through UEFI System Utilities.
USB support
HP provides standard USB 2.0 support, standard USB 3.0 support, and legacy USB support. Standard support
is provided by the OS through the appropriate USB device drivers.
Before the OS loads, HP provides support for USB 2.0 devices through legacy USB support, which is enabled
by default in the system ROM. USB 3.0 ports are not functional before the OS loads. The native OS provides
USB 3.0 support through appropriate xHCI drivers.
Legacy USB support provides USB functionality in environments where USB support is not available normally.
Specifically, HP provides legacy USB functionality for the following:
●
POST (system boot)
●
UEFI System Utilities
●
Pre-boot UEFI shell
●
DOS
●
Operating environments which do not provide native USB support
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 USB options in UEFI System
Utilities.
Redundant ROM support
The server enables you to upgrade or configure the ROM safely with redundant ROM support. The server has
a single ROM that acts as two separate ROM images. In the standard implementation, one side of the ROM
contains the current ROM program version, while the other side of the ROM contains a backup version.
NOTE:
The server ships with the same version programmed on each side of the ROM.
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
Utilities and features
107