IBM 7379E2U User Manual - Page 30

USB connectors, DVD-eject button, DVD drive activity LED

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USB connectors Connect USB devices to these connectors. DVD-eject button Press this button to release a CD or DVD from the DVD drive. DVD drive activity LED When this LED is lit, it indicates that the DVD drive is in use. 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/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 and bays 4 through 11 on 2.5-inch hard disk drive models. 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. Note: For proper cooling, do not install any card in the slot next in sequence to a ServeRAID adapter with battery backup module (for example, if a ServeRAID adapter with battery backup module is installed in slot 2, do not install any card in slot 3). When the drive is removed, this LED also is visible on the SAS/SATA backplane, below the hot-swap hard disk drive activity LED. 14 IBM System x3400 M3 Type 7378/7379: Installation and User's Guide

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USB connectors
Connect USB devices to these connectors.
DVD-eject button
Press this button to release a CD or DVD from the DVD drive.
DVD drive activity LED
When this LED is lit, it indicates that the DVD drive is in use.
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/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 and
bays 4 through 11 on 2.5-inch hard disk drive models.
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.
Note:
For proper cooling, do not install any card in the slot next in
sequence to a ServeRAID adapter with battery backup module (for
example, if a ServeRAID adapter with battery backup module is installed in
slot 2, do not install any card in slot 3).
When the drive is removed, this LED also is visible on the SAS/SATA
backplane, below the hot-swap hard disk drive activity LED.
14
IBM System x3400 M3 Type 7378/7379: Installation and User's Guide