Download Netra 440 Server Diagnostics and Troubleshooting Guide

Automatic System Recovery Settings
The automatic system recovery (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 effects not only 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 6-1.
TABLE 6-1
OpenBoot Configuration Variable Settings to Enable Automatic System
Recovery
Variable
Setting
auto-boot?
true
auto-boot-on-error?
true
diag-level
max
diag-switch?
true
diag-trigger
all-resets
post-trigger
all-resets
diag-device
(Set to the boot-device value)
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, refer to the Netra 440 Server System Administration Guide (817-3884xx).
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Netra 440 Server Diagnostics and Troubleshooting Guide • April 2004