|Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition
Sun Fire V440 LEDs
Front Panel LEDs
Several front panel LEDs provide general system status, alert you to system problems, and help you to determine the location of system faults.
During system startup, the LEDs are toggled on and off to verify that each one is working correctly. LEDs located on the front panel work in conjunction with specific fault LEDs. For example, a fault in the power supply subsystem illuminates the power supply Service Required LED on the affected power supply, as well as the system Service Required LED. Since all front panel status LEDs are powered by the system's standby power source, fault LEDs remain lit for any fault condition that results in a system shutdown.
At the top left of the system as you look at its front are three system status LEDs. The System Activity LED and the system Service Required LED provide a snapshot of the overall system status. The Locator LED helps you to quickly locate a specific system even though it may be one of numerous systems in a room. The Locator LED is at the far left in the cluster, and is lit by command from the administrator.
Each system status LED has a corresponding LED on the back panel.
Listed from left to right, the system status LEDs operate as described in the following table.
Each disk drive has its own status LEDs.
Listed from top to bottom, the disk drive LEDs operate as described in the following table.
Each power supply has its own status LEDs.
Each power supply LED has a corresponding LED on the back panel.
Listed from top to bottom, the power supply LEDs operate as described in the following table.
The back panel LEDs include the system status LEDs, the Ethernet port LEDs, the power supply LEDs, and the ALOM card LED. The system status LEDs and the power supply LEDs are replicated from the front panel.
System Status LEDs
The back panel system status LEDs consist of the System Activity LED, the system Service Required LED, and the Locator LED. These LEDs are located in the top-left corner of the back panel, and operate the same as the front system status LEDs.
A set of Ethernet LEDs is located on each Ethernet port. The Ethernet LEDs operate as described in the following table.
Each power supply has a corresponding set of four LEDs on the back panel. These LEDs operate the same as the front power supply LEDs.
Network Management Port LED
The network management port on the ALOM system controller has a Link LED that operates as described in the following table.