IBM x3100 M5 Type 5457 Installation And Service Manual page 38

v Hard disk drive activity LEDs:
v System-error LED:
v USB connectors:
v DVD eject button:
v DVD drive activity LED:
v Hot-swap hard disk drive activity LED (some models):
v Hot-swap hard disk drive status LED (some models):
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System x3100 M5 Type 5457: Installation and Service Guide
– Off: AC power is not present, or the power supply or the LED itself has
failed.
– Flashing rapidly (4 times per second): The server is partially on, but not
ready to be fully turned on. The power-control button is disabled. This will
last approximately 1 to 3 minutes.
– Flashing slowly (once per second): The server is ready to be turned on. You
can press the power-control button to turn on the server.
– Lit: The server is turned on.
When this LED is flashing, it indicates that the associated hard disk drive is in
use.
When this yellow LED is lit, it indicates that a system error has occurred. An
LED on the system board might also be lit to help isolate the error.
See"Diagnostic tools" on page 124 for additional information.
Connect USB devices to these connectors.
Press this button to release a DVD or CD from the DVD drive.
When this LED is lit, it indicates that the DVD drive is in use.
On some server models, each hot-swap drive has a hard disk drive activity LED.
When this green LED is flashing, it indicates that the drive is in use.
When the drive is removed, this LED also is visible on the SAS/SATA
backplane, next to the drive connector. The backplane is the printed circuit board
behind drive bays 4 through 7 on 3.5-inch hard disk drive models.
On some server models, each hot-swap hard disk drive has an yellow status
LED. If this yellow status LED for a drive is lit, it indicates that the associated
hard disk drive has failed.
If an optional ServeRAID adapter is installed in the server and the LED flashes
slowly (one flash per second), the drive is being rebuilt. If the LED flashes
rapidly (three flashes per second), the adapter is identifying the drive.
When the drive is removed, this LED also is visible on the SAS/SATA
backplane, below the hot-swap hard disk drive activity LED.