Sun Microsystems Fire V240, Administration Manual

Page: 96 / 102

82 Sun Fire V210 and V240 Servers Administration Guide • April 2003
As long as a failed component is electrically dormant (not causing random bus
errors or signal noise, for example), the system will reboot automatically and resume
operation while a service call is made.
Note – ASR is not enabled until you activate it.
Auto-Boot Options
The
auto-boot?
setting controls whether or not the firmware automatically boots
the operating system after each reset. The default setting is
true
.
The
auto-boot-on-error?
setting controls whether the system will attempt a
degraded boot when a subsystem failure is detected. Both the
auto-boot?
and
auto-boot-on-error?
settings must be set to
true
to enable an automatic
degraded boot.
● To set the switches, type:
Note –
The default setting for
auto-boot-on-error?
is
false
. Therefore, the
system will not attempt a degraded boot unless you change this setting to
true
. In
addition, the system will not attempt a degraded boot in response to any fatal non-
recoverable error, even if degraded booting is enabled. For examples of fatal non-
recoverable errors, see “Error Handling Summary” on page 82.
Error Handling Summary
Error handling during the power-on sequence falls into one of the following three
cases:
■
If no errors are detected by POST or OpenBoot Diagnostics, the system attempts
to boot if
auto-boot?
is
true
.
■
If only non-fatal errors are detected by POST or OpenBoot Diagnostics, the
system attempts to boot if
auto-boot?
is
true
and
auto-boot-on-error?
is
true
.
ok setenv auto-boot? true
ok setenv auto-boot-on-error? true