22 Sun Blade T6300 Server Module Administration Guide • April 2007
▼ To Display the State of the Locator LED From the ALOM
System Controller Command Prompt
● Type:
Note – You do not need user permissions to use the setlocator and
showlocator commands.
Automatic System Recovery
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 autoconfiguring 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 25.
AutoBoot Options
The system firmware stores a configuration variable called auto-boot?, which
controls whether the firmware automatically boots the operating system after each
reset. The default setting for Sun 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 server’s OpenBoot firmware provides a second setting, auto-boot-on-error?.
This 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?
switches must be set to true to enable an automatic degraded boot.
sc> showlocator
Locator LED is on.
