A P P E N D I X A - The Meaning of the LEDs

A P P E N D I X A

The Meaning of the LEDs

This appendix describes the LEDs on the front and back of the Sun Fire B1600 blade system chassis and tells you the meanings of their different states. It contains the following section:

Section A.1, Interpreting the LEDs

A.1 Interpreting the LEDs

Use the LEDs on the individual system components to determine if the system is operating normally. We recommend you monitor the LEDs routinely on the SSCs, Power Supply Units, and server blades

The LEDs can be off, on, or in some cases blinking slowly or flashing. When the Service Required LED is on (lit), this indicates that a fault has occurred in the component. A fault is any condition that is considered to be unacceptable for normal operation. When the Service Required LED is lit, you must take immediate action to clear the fault.

You can only remove a hot-swappable component when the blue Ready to Remove LED is lit.

FIGURE A-1 Front Panel LEDs

Ready to Remove Ready to remove symbol

(blue)

Service Required Service Rerequired symbol

(amber)

Active Power symbol

(green)

Indication

Corrective Action

Off

Component not operating. Fault condition unknown

If all LEDs are off on the chassis, check your external power source. If the LEDs are all off on a particular component, issue the poweron command to that component.

Off

Component not operating. Fault present.

Do not remove a component from the system.

Off

Component ready to remove. No fault present.

Remove the component from the chassis.

Off

Service is required to the component and the component is ready to remove.

Remove the faulty component and replace it.

Off

Normal component operation.

No action required.

Off

This combination is most likely to be seen on a PSU. It indicates that the PSU is providing power to the chassis (note that a PSU cannot be powered off) but that it has been prepared for removal.

Remove the PSU and insert the replacement PSU within 10 minutes (see the Caution box below).

This combination is most likely to be seen on a PSU. It indicates that the PSU requires service and has been prepared for removal, but that it is providing power to the chassis (note that a PSU cannot be powered off).

Remove the PSU and insert the replacement PSU within 10 minutes (see the Caution box below).

Off

Component operating.
Fault present.

Issue the poweroff -r or the removefru command to the faulty component. Then remove the component.

Off

Slow blink (blades)

Blade is in standby mode.

No action required, but type poweron sn (where n is the number of a blade) when you want to power on the blade. If the blade is at the ok prompt, type boot to load the operating system. If it is not at the ok prompt, wait until it is. If it does not return to the ok prompt or the Solaris prompt, reset the blade from the sc> prompt.

Off

Flashing (blades)

Blade is self-testing, initalising, or booting. It is powered on, but the Operating System is not running.

No action required.

Caution - When you remove a PSU, the white Locator LED on the chassis's front and back panels starts to flash. This is to alert you to insert a new PSU within 10 minutes of removing the old one, otherwise there is a danger that the server blades in the chassis will overheat. When you have inserted the new PSU, the Locator LED will stop flashing.