IBM System x3800 Type 8865 User Manual page 21

LOG LED on the light path diagnostics panel is lit, information about the
condition is available in the baseboard management controller (BMC) log or in
the system-event log. The condition might be that the BMC log is full or almost
full.
This LED and LEDs on the light path diagnostics panel remain lit until you
resolve the condition. If the only condition is that the BMC log is full or almost
full, clear the BMC log or the system-event log through the Configuration/Setup
Utility program to turn off the lit LEDs.
Important: Clear the BMC log and system-event log after you resolve all
conditions. If all conditions are resolved, this will turn off the information LED and
LOG LED.
v Release latch: Slide this latch to the left to access the light path diagnostics
panel.
v System-error LED: When this LED is lit, it indicates that a system error has
occurred. An LED on the light path diagnostics panel is also lit to help isolate the
error.
v Locator LED: When this LED is lit, it has been lit remotely by the system
administrator to aid in visually locating the server.
v Hard disk drive activity LED: When this LED is flashing, it indicates that a SAS
hard disk drive is in use.
v Power-on LED: When this LED is lit and not flashing, it indicates that the server
is turned on. When this LED is flashing, it indicates that the server is turned off
and still connected to an ac power source. When this LED is off, it indicates that
ac power is not present, or the power supply or the LED itself has failed.
Note: If this LED is off, it does not mean that there is no electrical power in the
server. The LED might be burned out. To remove all electrical power from the
server, you must disconnect the power cords from the electrical outlets.
Hard disk drive activity LED: On some server models, each hot-swap hard disk
drive has an activity LED. When this LED is flashing, it indicates that the drive is in
use.
Hard disk drive status LED: If a ServeRAID-8i adapter is installed, when this LED
is lit, it indicates that the associated hard disk drive has failed. If the LED flashes
slowly (one flash per second), the drive is being rebuilt. If the LED flashes rapidly
(three flashes per second), the controller is identifying the drive.
Diskette drive activity LED: When this LED is lit, it indicates that the diskette drive
is in use.
Diskette-eject button: Press this button to release a diskette from the diskette
drive.
CD drive activity LED: When this LED is lit, it indicates that the CD drive is in use.
CD-eject button: Press this button to release a CD or DVD from the DVD drive.
Chapter 1. The System x3800 server
9