Stop-D Functionality; Automatic System Recovery; Auto-Boot Options - Fujitsu SPARC Enterprise T2000 Administration Manual

Stop-D Functionality

The Stop-D (Diags) key sequence is not supported on systems with USB keyboards.
However, the Stop-D functionality can be closely emulated by setting the virtual
keyswitch to diag, using the ALOM CMT setkeyswitch command. For more
information, refer to the ALOM CMT guide for your server.

Automatic System Recovery

The system provides for automatic system recovery (ASR) from failures in memory
modules or PCI cards.
Automatic system recovery functionality enables the system to resume operation
after experiencing certain nonfatal hardware faults or failures. When ASR is enabled,
the system's firmware diagnostics automatically detect failed hardware components.
An auto-configuring capability designed into the system firmware enables the
system to unconfigure failed components and to restore system operation. As long
as the system is capable of operating without the failed component, the ASR features
enable the system to reboot automatically, without operator intervention.
Note – ASR is not activated until you enable it. See "Enabling and Disabling
Automatic System Recovery" on page 38.
For more information about ASR, refer to the service manual for your server.

Auto-Boot Options

The system firmware stores a configuration variable called auto-boot?, which
controls whether the firmware will automatically boot the operating system after
each reset. The default setting for SPARC Enterprise platforms is true.
Normally, if a system fails power-on diagnostics, auto-boot? is ignored and the
system does not boot unless an operator boots the system manually. An automatic
boot is generally not acceptable for booting a system in a degraded state. Therefore,
the SPARC Enterprise T2000 Server OpenBoot firmware provides a second setting,
auto-boot-on-error?. This setting controls whether the system will attempt a
Chapter 2 Managing RAS Features and System Firmware 35