HP ProLiant XL220a HP ProLiant XL220a Gen8 v2 Server User Guide - Page 48

Automatic Server Recovery, USB support, Redundant ROM support, Safety and security benefits

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For more information, go to the HP website (http://www.hp.com/go/hpsc) and click on Drivers, Software & Firmware. Then, enter your product name in the Find an HP product 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 (does not apply to HP ProLiant DL980 Servers), 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. At the same time, the HP SIM console notifies you by sending a message to a designated pager number that ASR has restarted the system. You can disable ASR from the System Management Homepage or through RBSU. 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 • RBSU • Diagnostics • DOS • Operating environments which do not provide native USB support 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 reason. This feature protects the existing ROM version, even if you experience a power failure while flashing the ROM. Software and configuration utilities 48

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Software and configuration utilities
48
For more information, go to the HP website (
) and click on
Drivers, Software
& Firmware
. Then, enter your product name in the
Find an HP product
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 (does not apply to HP ProLiant DL980 Servers), 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. At the
same time, the HP SIM console notifies you by sending a message to a designated pager number that ASR
has restarted the system. You can disable ASR from the System Management Homepage or through RBSU.
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
•
RBSU
•
Diagnostics
•
DOS
•
Operating environments which do not provide native USB support
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 reason. This feature protects the existing ROM version, even if you experience a power failure while
flashing the ROM.