Module LEDs

Each module contains LEDs that can be used to troubleshoot and resolve problems.

Note: To find descriptions and actions for LEDs on I/O modules or blade servers, see the documentation that comes with the device.

LED status	Description	Action
Advanced management module error LED	This amber LED is lit when a critical error has occurred in the management module. The system error LED on the BladeCenter S chassis will also be lit.	Reset the advanced management module. Reseat the advanced management module. Replace the advanced management module.
Power module ac power LED	This green LED is not lit if there is an ac power problem.	Make sure that all power cords are plugged into power sources and that the power sources are working. Reseat the power module. Replace the power module.
Power module dc power LED	The green LED is not lit if there is an dc power problem.	Make sure that all power sources are supplying the same voltage. All power sources must be either 110 V ac or 220 V ac. You cannot mix power sources in the same BladeCenter S chassis. Determine whether a failed component caused the shut down. If a component failed: Replace the failed component. Reseat the power module. Replace the power module.
Power module fault LED	This amber LED is lit if the power module has failed.	Note: Before unplugging the AC power cord from the power module or removing the power module from the BladeCenter S chassis, verify that the capacity of the remaining power modules are sufficient to meet the minimum power requirements for all components in the BladeCenter S chassis. You can view power status and requirements through the advanced management module. For information on accessing and using the advanced management module, see the Advanced Management Module User's Guide. Verify that the power modules are properly connected to an AC power source. All power modules in the BladeCenter S chassis must be connected to the same power input voltage (either 110 V ac or 220 V ac). Do not mix power input voltages. Unplug the AC power cord from the power module and plug it in again. Reseat the power supply. Swap the AC power cord with a power cord that is known to be working. Move the power module to another power module bay in the BladeCenter S chassis. View the advanced management module event log for errors related to this power module and resolve those errors.
Fan module fault LED	This amber LED is lit if one of the fans in the fan module has failed. Note: If one of the fans in the fan module fails, the other fan will begin operating at full speed.	Replace the fan module.
Disk storage module fault LED	This amber LED is lit if the disk storage module has failed.	Make sure the advanced management module is present and functioning. Make sure that there is at least one power module installed in a power module bay behind the disk storage module. Log in to the advanced management module and view the event log for power or cooling problems. Make sure that there is enough power allocated to allow the disk storage module to power on. You can view information about the allocated power in the advanced management module Web Interface (click Monitors > Power Management ). For information about the advanced management module Web interface, see the Advanced Management Module User's Guide. Reseat the disk storage module and allow the advanced management module to power it on. Replace the disk storage module.
Hard disk drive amber LED	This LED is lit (solid) if the hard disk drive has failed.	Replace the hard disk drive if the amber LED is solid.
Hard disk drive amber LED	This LED is flashing if the hard disk drive is being rebuilt or identified. If this LED is flashing fast, the hard disk drive is being rebuilt. If it flashes slowly, the hard disk drive is being identified.	No action is required.
Hard disk drive green LED	This LED is flashing if there is drive activity.	No action required.
Battery backup unit power LED	This green LED is lit if power is being provided to the battery backup unit	No action required.
Battery backup unit charging LED	This green LED is lit if the battery backup unit is charging.	No action required.
Battery backup unit fault LED	This amber LED is lit if the battery backup unit has failed.	Replace the battery backup unit.