Automatic System Restoration Settings - Sun Microsystems Sun Fire V445 Server Administration Manual

none (equivalent to issuing a manual XIR from the ALOM system controller) –
Drops the server to the ok prompt, enabling you to issue commands and debug
the system.
For more information about the hardware watchdog mechanism and XIR, see
Chapter

Automatic System Restoration Settings

The Automatic System Restoration (ASR) features enable 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 OpenBoot 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.
How you configure ASR settings has an effect not only on how the system handles
certain types of failures but also on how you go about troubleshooting certain
problems.
For day-to-day operations, enable ASR by setting OpenBoot configuration variables
as shown in
TABLE 9-1
Variable
auto-boot?
auto-boot-on-error?
diag-level
diag-switch?
diag-trigger
diag-device
Configuring your system this way ensures that diagnostic tests run automatically
when most serious hardware and software errors occur. With this ASR configuration,
you can save time diagnosing problems since POST and OpenBoot Diagnostics test
results are already available after the system encounters an error.
For more information about how ASR works, and complete instructions for enabling
ASR capability, see
228 Sun Fire V445 Server Administration Guide • September 2007
5.
.
TABLE 9-1
OpenBoot Configuration Variable Settings to Enable Automatic System
Restoration
"About Automatic System Restoration" on page
Setting
true
true
max
true
all-resets
(Set to the boot-device value)
209.