IBM System x3400 Type 7973, Руководство по диагностике и обслуживанию

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CD or DVD-eject button
Press this button to release a CD from the CD drive or a DVD from the
DVD drive.
CD or DVD drive activity LED
When this LED is lit, it indicates that the CD drive or DVD drive is in use.
Ethernet transmit/receive activity LED
This LED is on the Ethernet connector on the rear of the server. When this
LED is lit, it indicates that there is activity between the server and the
network.
Ethernet link status LED
This LED is on the Ethernet connector on the rear of the server. When this
LED is lit, it indicates that there is an active connection on the Ethernet
port.
Hot-swap hard disk drive activity LED (some models)
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 backplane,
next to the drive connector. The backplane is the printed circuit board
behind drive bays 4 through 11.
Hot-swap hard disk drive status LED (some models)
On some server models, each hot-swap hard disk drive has an amber
status LED. If this amber 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.
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System x3400 Types 7973, 7974, 7975, and 7976: Problem Determination and Service Guide