Sun Microsystems T6300 manual Automatic System Recovery, AutoBoot Options

▼To Display the State of the Locator LED From the ALOM System Controller Command Prompt

●Type:

sc> showlocator

Locator LED is on.

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.

22 Sun Blade T6300 Server Module Administration Guide • April 2007